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| Teide 2013 WR campaign https://forum.vdsastro.de/viewtopic.php?t=3978 |
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| Autor: | Thomas Eversberg [ 16. Mai 2013, 09:34:20 AM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Hi together! Tomorrow our Teide 2013 campaign begins. Our engineers Lothar Schanne and Berthold Stober are now on their way to Tenerife (Attached is our team schedule). Beside various email messages I will consecutively send respective messages via this forum. I invite all more than 80 campaign members to join this exchange platform. It makes following the procedure easier, keeps all historic messages and makes our campaign available to all interested readers. NOTE THAT THE DISCUSSION LANGUAGE HERE IS ENGLISH! Do not send campaign unrelated messages through this thread (we have other categories for that). Today another observing team joined us. It is Amsterdam University with their 51cm telescope (http://www.astro.uva.nl/apo/). Welcome on board! The session is open and good luck to everybody! Cheers, Thomas |
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| Autor: | Lothar Schanne [ 16. Mai 2013, 15:10:32 PM ] | ||
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Hello together, here our instrumental luggage waiting for transportation. The coming night we are going to Tenerife. Perhaps we'll give first signals from Teide tomorrow in the evening, I hope so.
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| Autor: | Thomas Eversberg [ 16. Mai 2013, 15:12:50 PM ] |
| Betreff des Beitrags: | |
Bon voyage! |
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| Autor: | Berthold Stober [ 16. Mai 2013, 18:01:24 PM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Nice picture, indeed berthold Von meinem iPad gesendet Am 16.05.2013 um 15:10 schrieb Lothar Schanne <fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de)>: Zitat: Hello together,
here our instrumental luggage waiting for transportation. The coming night we are going to Tenerife. Perhaps we'll give first signals from Teide tomorrow in the evening, I hope so. Herzliche Grüße Lothar www.astrospectroscopy.eu www.spectrosphere.de <K800_20130516_150306.JPG> |
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| Autor: | thierry Garrel [ 16. Mai 2013, 18:05:55 PM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Good luck and clears skies, ask for help if needing. Thierry 2013/5/16 Thomas Eversberg <fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de)> Zitat: Bon voyage!
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| Autor: | Rolf Schad [ 16. Mai 2013, 22:49:37 PM ] |
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Hola, buen viaje y un cielo claro. Hasta lugo Rolf |
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| Autor: | Thomas Eversberg [ 17. Mai 2013, 14:23:43 PM ] |
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Hi all! I just checked the observatory list and proposed data contribution. Presently 83 (!) amateurs and professionals are involved. This is from the professional side (PIs in brackets): Hard Labor Creek Observatory / USA (Emily Aldoretta) Keck Observatroy / Mauna Kea Hawaii (Grant Hill) Mont Megantic Observatory / Quebec (Nicole St-Louis, Noel Richardson & Tahina Ramiaramanantsoa) Dominian Observatory / Vancouver Island (Grant Hill) University of Toledo / USA (Jimmy Davidson) Amsterdam University / The Netherlands (Hugues Sana & Huib Henrichs) Birmingham University / UK (Ian Stevens) Nordic Telescope / La Palma (Sergio Simon Diaz) And from the amateur side I have Laurent Drissen, Robert Tremblay & Quebec City amateurs Thierry Garrel (France) Berthold Stober (Germany) Mike Potter (USA) Dong Li (China) Bernard Heathcote (Australia) Robin Leadbeater (UK) and of course the big Teide IAC 80 ProAm team. If somebody is missing or is interested to join us, please let me know. Cheers, Thomas |
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| Autor: | Lothar Schanne [ 18. Mai 2013, 10:54:57 AM ] |
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Hello all things run normally. The technical stuff is going to take their breakfest and we are waiting for them. Next News this afternoon. |
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| Autor: | Berthold Stober [ 18. Mai 2013, 17:13:32 PM ] |
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Hello, Lothar, Daniel Weiss, Dalila, my wife and I we arrived today at the Inzana Observatory . We have absolute clear and very dark sky. Tomorow we Start the installation of my eShel Spe trograph Form Shelyak at the IAC 80. I hope, we can deliver Fiat eShelspecta at sunday...for the first, I shall take spectra from dela scorpii and 66 ophiuchi . Which other stars are proposed, for first tests except the program stars? 18.5 2013 We were odered to be at 9:00 am at the observatory, at 10:00 arrived someone and we could start the installation of the eShel The aluplate I machined is perfect. But we have mo tungsten light in the calibration unit. We have had much to do, to find out the reason. The very,very friendly staff of the IAC 80 helped us some hours(!!). The reason: the tungstenlamp is defect. So we can not make tungsten flats.......a big problem. Thomas please contact Olivier or François . They must send us so fast as possible such a lamp to the Teide. I think you can organize this. The next problem is, Lothars laptop and the software on it will not Match with my NovaCCD. I installed the correct program to drive the NOVACCD but there was some problems with Administrator rights and so on. In my hands the NOVACCD was working with se software I installed. After this Lothar took the laptop bck to Mannheim and has done some changes with this laptop . The effect : the Nova will not run with the software on Lothars laptop. I have no installation CCD with me. So we have to contact Gerhard Fischer, I have done this by email already but perhaps, Thomas, could you try to phone with ihm? He have to send us the installion files per email for my NOVACCD 3200 . That is very urgend! If we have no running pc software and no callibration unit....the campaign is in danger. Cheers Berthold |
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| Autor: | Lothar Schanne [ 18. Mai 2013, 17:20:10 PM ] |
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First big problem : The tungsten filament in the halogen lamp of the calibration unit is broken during the travel. So we are not able to take flats. The technical stuff is very kindly. He has opened the unit and has changed the broken lamp by a normal tungsten lamp we have organized at VLT. so we are able to work but only for tests. We asked Olivier Thizy to send a new one to Teneriffa. |
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| Autor: | Filipe Dias [ 18. Mai 2013, 17:28:26 PM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
I have an installation CD for my Sigma-403, that I believe supports the Sigma-3200 camera as well. Does this sound good?I will put it online in my Dropbox account (it will take a while) and then provide the link. If you do not want or need it, then I will remove it later. I will return soon with details about driver versions and software dates, and so on.. Cheers, On Sat, May 18, 2013 at 4:13 PM, Berthold Stober <fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de)> wrote: Zitat: Hello,
Lothar, Daniel Weiss, Dalila, my wife and I we arrived today at the Inzana Observatory . We have absolute clear and very dark sky. Tomorow we Start the installation of my eShel Spe trograph Form Shelyak at the IAC 80. I hope, we can deliver Fiat eShelspecta at sunday...for the first, I shall take spectra from dela scorpii and 66 ophiuchi . Which other stars are proposed, for first tests except the program stars? 18.5 2013 We were odered to be at 9:00 am at the observatory, at 10:00 arrived someone and we could start the installation of the eShel The aluplate I machined is perfect. But we have mo tungsten light in the calibration unit. We have had much to do, to find out the reason. The very,very friendly staff of the IAC 80 helped us some hours(!!). The reason: the tungstenlamp is defect. So we can not make tungsten flats.......a big problem. Thomas please contact Olivier or François . They must send us so fast as possible such a lamp to the Teide. I think you can organize this. The next problem is, Lothars laptop and the software on it will not Match with my NovaCCD. I installed the correct program to drive the NOVACCD but there was some problems with Administrator rights and so on. In my hands the NOVACCD was working with se software I installed. After this Lothar took the laptop bck to Mannheim and has done some changes with this laptop . The effect : the Nova will not run with the software on Lothars laptop. I have no installation CCD with me. So we have to contact Gerhard Fischer, I have done this by email already but perhaps, Thomas, could you try to phone with ihm? He have to send us the installion files per email for my NOVACCD 3200 . That is very urgend! If we have no running pc software and no callibration unit....the campaign is in danger. Cheers Berthold -- Fil. |
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| Autor: | Berthold Stober [ 18. Mai 2013, 17:40:21 PM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Hello Filipe ,nice from you but....... I have a NOVACCD not a Sigma ! I need urgently the software for the NOVACCD Cheers berthold Von meinem iPad gesendet Am 18.05.2013 um 16:34 schrieb Filipe Dias <fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de)>: Zitat: I have an installation CD for my Sigma-403, that I believe supports the Sigma-3200 camera as well. Does this sound good?I will put it online in my Dropbox account (it will take a while) and then provide the link.
If you do not want or need it, then I will remove it later. I will return soon with details about driver versions and software dates, and so on.. Cheers, On Sat, May 18, 2013 at 4:13 PM, Berthold Stober )fg-spek-convento(==>)vds-astro.de ([email]fg-spek-convento(==>)vds-astro.de[/email]))> wrote: : Hello, Lothar, Daniel Weiss, Dalila, my wife and I we arrived today at the Inzana Observatory . We have absolute clear and very dark sky. Tomorow we Start the installation of my eShel Spe trograph Form Shelyak at the IAC 80. I hope, we can deliver Fiat eShelspecta at sunday...for the first, I shall take spectra from dela scorpii and 66 ophiuchi . Which other stars are proposed, for first tests except the program stars? 18.5 2013 We were odered to be at 9:00 am at the observatory, at 10:00 arrived someone and we could start the installation of the eShel The aluplate I machined is perfect. But we have mo tungsten light in the calibration unit. We have had much to do, to find out the reason. The very,very friendly staff of the IAC 80 helped us some hours(!!). The reason: the tungstenlamp is defect. So we can not make tungsten flats.......a big problem. Thomas please contact Olivier or François . They must send us so fast as possible such a lamp to the Teide. I think you can organize this. The next problem is, Lothars laptop and the software on it will not Match with my NovaCCD. I installed the correct program to drive the NOVACCD but there was some problems with Administrator rights and so on. In my hands the NOVACCD was working with se software I installed. After this Lothar took the laptop bck to Mannheim and has done some changes with this laptop . The effect : the Nova will not run with the software on Lothars laptop. I have no installation CCD with me. So we have to contact Gerhard Fischer, I have done this by email already but perhaps, Thomas, could you try to phone with ihm? He have to send us the installion files per email for my NOVACCD 3200 . That is very urgend! If we have no running pc software and no callibration unit....the campaign is in danger. Cheers Berthold -- Fil. Fil. |
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| Autor: | Thomas Eversberg [ 18. Mai 2013, 18:38:20 PM ] |
| Betreff des Beitrags: | |
Now, that's fun!!! Anyway, presently I am on a seminar and can only temporarily work for the campaign. And I have no email from Fischer. Klaus Vollmann will send it to lothar. Thomas |
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| Autor: | Filipe Dias [ 18. Mai 2013, 21:12:42 PM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Berthold, I could not find the CD. It must be at my other house (too far away). I know it came with a "Sigma" camera, but it could be worth trying, as it is a following model to the Nova series, and perhaps could have the drivers for all cameras as well. It would be worth trying if it works... |
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| Autor: | Thomas Eversberg [ 18. Mai 2013, 21:51:51 PM ] |
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I agree with Fil! I called Klaus Vollmann and her, as well, mentioned that the Nova should run with the sigma software. |
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| Autor: | Lothar Schanne [ 19. Mai 2013, 03:14:04 AM ] |
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Like anytime the first day and night was very interesting Broken halogen lamp, repairing and improvisation.... Then broken calibration light fiber, very surprising But we have a second one (manufactured by Daniel Sablowski, Daniel, thank you !). Treiber problems with the CCD, but we use a other Laptop And problems with the adapter and integrated Shapley lens: but we remove the distance pieces (for focusing)...and it works. Improvisation is the word of the day.... and we got the first spectra..but not with the FOVIA-system...only by manual guiding...we are so happy An unforgettable day and a wonderful sky (Daniel looks continously with the binoculars into the sky...). Ciao Lo |
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| Autor: | Berthold Stober [ 19. Mai 2013, 03:18:32 AM ] |
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Now, the 200 micron fiber from Shelyak is broken too,,,,!!! That is total bad. I have nothing done with this fiber . I put it away form the fiber injektion and from the callibrationunit . Then I put it in the transport case. Today we took the fiber out of the transport case and connected it with the fiberinjection and the calibrationunit. And then..........no light!! It is really not funny with this fibers from Shelyak, I am rather disapointed........ Berthold |
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| Autor: | thierry Garrel [ 19. Mai 2013, 10:02:01 AM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Hi, Well a lot of surpise. About the fiber. I've never seen a total loss of signal from a broken calibration fiber, Do you have recover signal with the spare one ? You can try to expose a longer time on calibration lamp. Good luck Thierry Le 19 mai 2013 03:20, "Berthold Stober" <fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de)> a écrit : Zitat: Now, the 200 micron fiber from Shelyak is broken too,,,,!!! That is total bad. I have nothing done with this fiber . I put it away form the fiber injektion and from the callibrationunit . Then I put it in the transport case. Today we took the fiber out of the transport case and connected it with the fiberinjection and the calibrationunit. And then..........no light!! It is really not funny with this fibers from Shelyak, I am rather disapointed........
Berthold |
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| Autor: | Berthold Stober [ 19. Mai 2013, 10:09:54 AM ] |
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Hello, the sigmasoftware can not drive the NOVACCD. I have at home both! One Sigma 1603 and the Nova3200. Each camera needs another software! Cheers Berthold |
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| Autor: | Berthold Stober [ 19. Mai 2013, 10:29:28 AM ] |
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Hello Thierry , We need maximal light throuhg the callibration fiber. With the rather expansive fibers from Shelyak we can not work there. Daniel Sablowsky helped us, so we can go on Cheers berthold By the way.....there is absolutly no light to see throuhg this Shelyak fiber. This is very disapointing as I said already. |
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| Autor: | Lothar Schanne [ 19. Mai 2013, 14:03:24 PM ] | ||
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| Autor: | Daniel Sablowski [ 19. Mai 2013, 14:33:41 PM ] |
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Hi 1. Team, please be careful with the sun. The UV radiation is much more intensive there. Good Luck! |
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| Autor: | Lothar Schanne [ 19. Mai 2013, 14:45:08 PM ] | ||||
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OK. There are also other situations.
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| Autor: | Lothar Schanne [ 19. Mai 2013, 15:09:22 PM ] |
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Hello together, the first data of last night are uploaded on the Montreal server of Noel. Everbody who has permission can download them. Comments are welcome. |
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| Autor: | Martin Dubs [ 19. Mai 2013, 20:17:37 PM ] | ||
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Hello all, I have downloaded the first data and processed the first test spectrum. Needs some fine tuning but in principle it works. I am in contact with Lothar for the details. Without Instrument response. The campaign has started successfully, despite some initial problems. Data transfer works. Spectrometer works. Data can be analyzed. Wait for the first WR spectrum! More to follow. Martin
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| Autor: | Thomas Eversberg [ 20. Mai 2013, 17:35:23 PM ] |
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Hi all! Here is new information from team 1: Yesterday they positioned the blaze maximum exactly on the chip center, the telescope adapter is refinished so that we can better come into the telescope focus and simultaneously access the focus of the FOVIA guiding unit. The spectrograph is installed and works (proof by the presented spectrum). The missing camera software will be sent from Germany and the flat tungsten lamp from France. That means that we can expect a simple procedure for the following teams: Open the dome and the mirror protector and get the targets with the very accurate telescope. Team 1 is doing an excellent job!!! Thank you Daniel, Lothar and Berthold. |
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| Autor: | Lothar Schanne [ 21. Mai 2013, 02:56:25 AM ] |
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Hello the Nova aquisition software is now working on our laptop. Because a dismatching of the telescope focus and the FOVIA focus range we have to guide manually this night. But this problem will be solved tomorrow by the maintenance. |
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| Autor: | Norbert Reinecke [ 21. Mai 2013, 03:42:30 AM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Hi Lothar & Berthold,congratulation for the sucessfull operation of the CCD - drivers! Most important step...Tonight I was adjusting my telescope here in Playa de Las Americas - just 2400 m below IZANA.Best regardsNorbert-----Ursprüngliche Mitteilung----- Von: Lothar Schanne <fg-spek-convento@vds-astro.de>An: fg-spek-convento <fg-spek-convento@vds-astro.de>Verschickt: 20-May-2013 21:00:12 +0000Betreff: [fg-spek] Re: Teide 2013 WR campaign #AOLMsgPart_1_5f11073f-da22-4e4e-a733-5488e94eed10 td{color: black;} Hello the Nova aquisition software is now working on my laptop. Because a dismatching of the telescope focus and the FOVIA focus range we have to guide manually. But this problem will be solved tomorrow by the maintenance. Herzliche Grüße Lothar www.astrospectroscopy.eu www.spectrosphere.de |
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| Autor: | Lothar Schanne [ 21. Mai 2013, 04:33:22 AM ] |
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This night we spectroscopied WR 140 and some other stars and later in the morning also our target stars WR 134, WR 135 and WR 137 (each 4 x 600s). All by manual guiding ( The next 3 days the IAC80 is occupied by an other project team (Friday we can work). We have therefore to uninstall our fiberinjection unit at the end of this night. To do: * Change of the Tungsten bulb in the calibration unit when the new bulb is arrived. * Writing instructions and docus. * Matching of FOVIA and telescope focus range for autoguiding (to do by the maintenance). * Search for a solution to change the data aquisitioning laptop from the dome down at the control room (where the positioning of the star on the fiber input can be watched and manually corrigated if necessary). * Optimizing the data quality (support wanted for data reduction by Noel and Martin Dubs) * Optimizing the data aquisition procedure to get a optimal standard (for next teams). Thanks to Gerhard Fischer and to Monika Stober to send us so immediately the installation software for the Nova-CCD. |
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| Autor: | Bernard Heathcote [ 21. Mai 2013, 05:39:05 AM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Hi Lother, et al, I?m hoping to cover HD160529 and HD316285 with my eShel from my southern Australia location. Good success at Teide! Cheer, Bernard From: Lothar Schanne (fg-spek-convento@vds-astro.de) Sent: Tuesday, May 21, 2013 12:33 PM To: fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de) Subject: [fg-spek] Re: Teide 2013 WR campaign This night we spectroscopied WR 140 and some other stars and later in the morning also our target stars WR 134, WR 135 (4 x 600s). All by manual guiding ( Herzliche Grüße / best regards Lothar www.astrospectroscopy.eu No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3343 / Virus Database: 3162/6341 - Release Date: 05/20/13 |
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| Autor: | Thomas Eversberg [ 21. Mai 2013, 10:11:38 AM ] |
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Bravo, Bernard! That will help. In any case, we need to clear up why the supplemental targets are impossible at Teide. They culminate at about 30° above the horizon. Lothar, Berthold, could you give some more information about it? Thomas |
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| Autor: | Tobias Feger [ 21. Mai 2013, 10:46:08 AM ] |
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Hi guys's, I would like to mention that I have access to a 16" SCT on a Paramount + SBIG SGS spectrograph. The spectograph has gratings with 600l/mm and 150l/mm. The max. resolving power is around R~3000. If this suits to the general requirements I am happy to jump on the train and deliver you some spectra from south/west Australia. Cheers! Tobias |
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| Autor: | Thomas Eversberg [ 21. Mai 2013, 12:25:15 PM ] |
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Go ahead, Tobias! |
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| Autor: | Bernard Heathcote [ 21. Mai 2013, 15:01:21 PM ] | ||
| Betreff des Beitrags: | Teide 2013 WR campaign | ||
I can?t start my surveys as I?ve run into a problem with the eShel ... looks like it could be a calibration fibre-optic cable problem Cheers, Bernard From: Thomas Eversberg (fg-spek-convento@vds-astro.de) Sent: Tuesday, May 21, 2013 6:11 PM To: fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de) Subject: [fg-spek] Re: Teide 2013 WR campaign Bravo, Bernard! That will help. In any case, we need to clear up why the supplemental targets are impossible at Teide. They culminate at about 30° above the horizon. Lothar, Berthold, could you give some more information about it? Thomas No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3343 / Virus Database: 3162/6342 - Release Date: 05/20/13
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| Autor: | Tobias Feger [ 21. Mai 2013, 15:28:09 PM ] |
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Hi Bernard, What kind of fibre is it? Do you know if the fibre is broken or is it just dirt on both connectors. In case your fibre is broken I have several spare fibres with 100micron core diameter and SMA connectors which I could borrow you. Just let me know if you need one. Cheers Tobias |
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| Autor: | Lothar Schanne [ 21. Mai 2013, 16:05:10 PM ] |
| Betreff des Beitrags: | Re: Teide 2013 WR campaign |
Zitat: I can?t start my surveys as I?ve run into a problem with the eShel ... looks like it could be a calibration fibre-optic cable problem
Hello Bernard,it seems to me that the Shelyak manufactured fibers have some problems with their stability. Bertholds calibration fiber (200 um cor diameter) is broken only by transport. I can ensure that during the installation of that fiber here on IAC80 the fiber was not stressed. Nevertheless it is broken (no light transition oberservable). Very problematic. |
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| Autor: | Lothar Schanne [ 21. Mai 2013, 16:28:01 PM ] |
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Hello together, the last night was very succesful. We have a lot of spectra and the auxiliary images likes flat, dark, ThAr and so on. All the 3 target WR stars are measured. Now I'm renaming the images into our right nomenclature and then I will send them on the Montreal server. Noel and Martin, please look and try the data reduction. Is there an optimization need? The adapter plate between our fiber injection unit and the FOVIA unit is changed (shortening of the focus length) by the maintenance stuff this morning (we are supported very friendly and quickly by Alex and his team) so I hope that we can Friday use the FOVIA autoguiding tool. Manual guiding during the whole night (it was 6 hour this morning when I stopped end ended the image series) is very stupid (but necessary in this case). We are happy that the most problems are solved. We have now also the permission to install a special programm on the guest PC. Than we can command the data aquisition laptop from the control room. That's mutch better then in the dome because we see then the pinhole (fiber input) in the control room and can intervene manually if necessary. |
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| Autor: | Lothar Schanne [ 21. Mai 2013, 17:15:00 PM ] |
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Hello we have to install a simple file renanming software. Mine is too difficult and dangerous (for admins). Bernhard, you recommended a simple one. Can you repeat me the link? Also Noel recommended a programm? What has it been? |
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| Autor: | Berthold Stober [ 21. Mai 2013, 17:25:22 PM ] |
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Hello Bernhard, By the way , I have the massive problem with the Shelyak fibers too!! Because of the the bad weather in Glan-Münchweiler I cannot use these fibers very often. Iven if my 50 micron fibers are broken FOUR times, so I must resend them to Shelyak. Now I do not use those fibers longer. Even if the fibers of Shelyak are rather expensive, it seems to mee Shelyak has massiv problems to manufacture a good quality of fibers for so much money ! Cheers Berthold |
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| Autor: | Noel Richardson [ 21. Mai 2013, 17:57:56 PM ] |
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Hi all, The data look great so far from looking at the bet Lyr reduced spectrum and a quick examination of the raw WR data from last night, I'll be working on writing a basic reduction code here at UdeM for the Teide data over the next few days. Once we can look at the data directly reduced, I'll give better guidance for exposure time based upon the S/N. Please remember to observe these stars several times throughout the night (probably can get 2 or 3 each per night now, increasing as the campaign goes on into summer.) A few comments: Please observe a ThAr lamp before and after each science exposure. If you sit on a star for an hour (with sub-exposures), please do one in the middle. We only need one set of darks per night - with exposures of 30 minutes (see my data acquisition webpage). We can't use short darks of an exposure shorter than the science stars very well. I outlined our request for each night at that site, please use these. We don't understand why the team can't observe the LBV supplemental targets. This seems unusual to me - yes they will be southern targets, but my reading of the 0.8m website indicates that there is a telescope parking position at -40dec, further south than these stars. Please explain! For the other amateurs involved. Please let me know when you take data, and I will send you an ftp account for the data to come here to Montreal. We need to reduce all of the nights of data ourselves to keep everything reduced uniformly. Lastly, we were discussing this earlier here at UdeM. WR 140 is a fascinating system, but it shows little interesting variability this summer, because the binary is not near periastron. Please spend time looking at the target stars and not WR 140 this summer for those of you at Teide. |
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| Autor: | Martin Dubs [ 21. Mai 2013, 23:47:07 PM ] | |||||
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Hi all, I have started analyzing the data with ISIS. Some comments: - The spectra look much better than two days ago, well centered and correct intensities. Because of the centering some parameters had to be adjusted (X, Y, alpha, def_lambda). I will put the new values on the FTP server - For analysis with ISIS the camera should be rotated somewhat (about 1 degree) so that the ThAr lines line up with the precalculated values, see the image below: The circle should align with the spectral line! - I cannot make an instrument response since I have no data on Mizar e.g. - All the test spectra mentioned in the monday protocol are missing on the FTP server but necessary for the checks if the spectra can be analyzed properly. P Cyg and bet Lyr are not suitable for the determination of the response. - It would be nice to have a spectrum of zet Aql for checking the instrument response. Should not take too long to make! - There are still some problems with the ripple after merging the orders, as seen in a spectrum of P Cyg. - There is a small problem with ISIS when averaging 10 bias frames, so I used only 9. I will check with Christian about this. Apart from this the analysis of the spectra works well. To finish a preliminary spectrum of WR140, again without instrument response corrected Keep going and clear skies, Martin
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| Autor: | Bernard Heathcote [ 22. Mai 2013, 00:02:29 AM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Hi Lothar, The easy to use, and highly rated, renaming utility is A.F.5 (Alex Fauland?s #5) which can be downloaded at http://www.fauland.com/af5.htm and other sites. Cheers, Bernard From: Lothar Schanne (fg-spek-convento@vds-astro.de) Sent: Wednesday, May 22, 2013 1:15 AM To: fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de) Subject: [fg-spek] Re: Teide 2013 WR campaign Hello we have to install a simple file renanming software. Mine is too difficult and dangerous (for admins). Bernhard, you recommended a simple one. Can you repeat me the link? Also Noel recommended a programm? What has it been? Herzliche Grüße / best regards Lothar www.astrospectroscopy.eu No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3343 / Virus Database: 3162/6342 - Release Date: 05/20/13 |
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| Autor: | Berthold Stober [ 22. Mai 2013, 09:55:13 AM ] |
| Betreff des Beitrags: | |
Hello Martin, Many, many thanks for your help with Data Reduction. It is very important for us to see fast, what we did. Unfortunately I am not so experienced with adapting the Calib lists as you know already. The spectra on the blue region have all a S/N what is not so good as on the red region. Do you mean, we could do anything to improve this? Thank you again Berthold |
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| Autor: | Bernard Heathcote [ 22. Mai 2013, 10:03:04 AM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Hi Tobias, It is very kind of you to offer to loan me fibre cables but I don?t think it would help, but thank you anyway. At this stage of my investigation I am not sure either of the cables is the problem. To confirm this, by substitution, I would ideally need 200u fibre for the calibration and a 50u for the signal, both with FC connectors. I do have a second 50u fibre but not a second 200u fibre. Also, it is possible the problem is internal to the optical injection unit or some other area. Another problem I have is that as I?m in Australia the cost of sending fibres from Europe is expensive! Regards, Bernard From: Tobias Feger (fg-spek-convento@vds-astro.de) Sent: Tuesday, May 21, 2013 11:28 PM To: fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de) Subject: [fg-spek] Re: Teide 2013 WR campaign Hi Bernard, What kind of fibre is it? Do you know if the fibre is broken or is it just dirt on both connectors. In case your fibre is broken I have several spare fibres with 100micron core diameter and SMA connectors which I could borrow you. Just let me know if you need one. Cheers Tobias Dein Projekt. Mach es fertig, bevor es Dich fertig macht! No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3343 / Virus Database: 3162/6342 - Release Date: 05/20/13 |
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| Autor: | Bernard Heathcote [ 22. Mai 2013, 10:10:15 AM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Hi Lothar, Berthold, As I?ve said in my reply to Tobias I am not 100% certain that my problem (very weak calibration spectra) is caused by a bad fibre cable (certainly not broken as both do transmit light) ... I need to do more investigation. It may be an alignment problem in the FIGU ... very puzzling. Regard, Bernard From: Lothar Schanne (fg-spek-convento@vds-astro.de) Sent: Wednesday, May 22, 2013 12:05 AM To: fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de) Subject: [fg-spek] Re: Teide 2013 WR campaign Bernard Heathcote hat Folgendes geschrieben: I can?t start my surveys as I?ve run into a problem with the eShel ... looks like it could be a calibration fibre-optic cable problem Hello Bernard, it seems to me that the Shelyak manufactured fibers have some problems with their stability. Bertholds calibration fiber (200 um cor diameter) is broken only by transport. I can ensure that during the installation of that fiber here on IAC80 the fiber was not stressed. Nevertheless it is broken (no light transition oberservable). Very problematic. Herzliche Grüße / best regards Lothar www.astrospectroscopy.eu No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3343 / Virus Database: 3162/6342 - Release Date: 05/20/13 |
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| Autor: | thierry Garrel [ 22. Mai 2013, 11:00:48 AM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Is P cyg is a single 30s exposure as write in the Fit header ? On both spectra, WR140 and P cyg there is discrepancy of the snr in the blue region, HeII 4686 is out of range. It may came from low exposure, but may come from focus centered on the low orders. Thierry 2013/5/21 Martin Dubs <fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de)> Zitat: Hi all,
I have started analyzing the data with ISIS. Some comments: - The spectra look much better than two days ago, well centered and correct intensities. Because of the centering some parameters had to be adjusted (X, Y, alpha, def_lambda). I will put the new values on the FTP server - For analysis with ISIS the camera should be rotated somewhat (about 1 degree) so that the ThAr lines line up with the precalculated values, see the image below: The circle should align with the spectral line! - I cannot make an instrument response since I have no data on Mizar e.g. - All the test spectra mentioned in the monday protocol are missing on the FTP server but necessary for the checks if the spectra can be analyzed properly. P Cyg and bet Lyr are not suitable for the determination of the response. - It would be nice to have a spectrum of zet Aql for checking the instrument response. Should not take too long to make! - There are still some problems with the ripple after merging the orders, as seen in a spectrum of P Cyg. - There is a small problem with ISIS when averaging 10 bias frames, so I used only 9. I will check with Christian about this. Apart from this the analysis of the spectra works well. To finish a preliminary spectrum of WR140, again without instrument response corrected Keep going and clear skies, Martin |
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| Autor: | Berthold Stober [ 22. Mai 2013, 11:58:22 AM ] |
| Betreff des Beitrags: | Teide 2013 WR campaign |
Von meinem iPad gesendet Am 21.05.2013 um 16:57 schrieb Noel Richardson <fg-spek-convento@vds-astro.de (fg-spek-convento@vds-astro.de)>: Zitat: Hi all,
Hello Noel ,The data look great so far from looking at the bet Lyr reduced spectrum and a quick examination of the raw WR data from last night, I'll be working on writing a basic reduction code here at UdeM for the Teide data over the next few days. Once we can look at the data directly reduced, I'll give better guidance for exposure time based upon the S/N. Please remember to observe these stars several times throughout the night (probably can get 2 or 3 each per night now, increasing as the campaign goes on into summer.) A few comments: Please observe a ThAr lamp before and after each science exposure. If you sit on a star for an hour (with sub-exposures), please do one in the middle. We only need one set of darks per night - with exposures of 30 minutes (see my data acquisition webpage). We can't use short darks of an exposure shorter than the science stars very well. I outlined our request for each night at that site, please use these. We don't understand why the team can't observe the LBV supplemental targets. This seems unusual to me - yes they will be southern targets, but my reading of the 0.8m website indicates that there is a telescope parking position at -40dec, further south than these stars. Please explain! We tried it at several different Times in the night from 18 - 19.5.13 to reach these stars. The software of the IAC80 told us, that the star would not be reachable(right word?)...... Please tell us at what time in the night from 24.5. to 26.5. the star should be reachable for the IAC80 on your opinion........ Zitat: For the other amateurs involved. Please let me know when you take data,
The observation of WR140 was my wish! I know that this star is not one of the targets. Rember, we are not here for creating science spectra. We are here to make running the system so perfect as possible. So we take spektra from stars I know, only for tests!and I will send you an ftp account for the data to come here to Montreal. We need to reduce all of the nights of data ourselves to keep everything reduced uniformly. Lastly, we were discussing this earlier here at UdeM. WR 140 is a fascinating system, but it shows little interesting variability this summer, because the binary is not near periastron. So I have to express my thanks to Martin Dubs, he reduced our test spectra AT ONCE . In the moment nobody else had done this, and I am by myself not able to do this in the moment. So the help from Martin Dubs is maximal important. I ask you to do the same . So we could compare the results! Zitat:
looking at the target stars and not WR 140 this summer for those of you at
To create science spectra is and must rest the work of the following groups that is not the main work of this first group! If we can create sciene spectra......ok this is fine , but it is not our main target! Cheers berthold Zitat: Please spend time
Teide. |
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| Autor: | Tobias Feger [ 22. Mai 2013, 15:11:01 PM ] |
| Betreff des Beitrags: | |
Hi Bernard, Zitat: It is very kind of you to offer to loan me fibre cables but I don?t think it would help, but thank you anyway. At this stage of my investigation I am not sure either of the cables is the problem. To confirm this, by substitution, I would ideally need 200u fibre for the calibration and a 50u for the signal, both with FC connectors. I do have a second 50u fibre but not a second 200u fibre. Also, it is possible the problem is internal to the optical injection unit or some other area. Another problem I have is that as I?m in Australia the cost of sending fibres from Europe is expensive!
Oh sorry, I forgot to mention that I am very close to you. I am in Sydney. Shipping from here to Melbourne should be around 8-10 dollars. Just let me know if you need anything. Our lab equipment is good enough to do any sort of fibre repair, splicing, polishing or connectorization. Cheers Tobias |
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| Autor: | Martin Dubs [ 22. Mai 2013, 15:49:29 PM ] | ||||||
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Hello everybody, I tweaked the ISIS analysis procedure somewhat, so higher orders are extracted as well. Thierry and Berthold: due to the rotation of the camera, calibration above order 49 did not work. This can be corrected with the next spectra. About S/N at low wavelength, this comes probably from the missing instrument response and a weak halogen flat lamp which multiplies the signal and noise at low wavelength. For the instrument response I still need some reference test spectra! This should be fixed as well. In the meantime I plot the data on a logscale, which allows an easier estimate of S/N. By focusing the camera to the lower and higher orders the spectral range could extended somewhat, with a small reduction of R in the midrange. As far as I can see, P Cyg is a single 30sec exposure. For the lowest orders (30 and 31) I had to extend the lines.lst to larger wavelengths. As mentioned by Berthold, my job is to check the performance of the instrument and to make a quick data analysis possible. This works quite well now. Still visible is the ripple of the orders, this should be improved if possible. But for those interested in the science I also add some spectra: As noted above these are test only, but science should follow soon. The merged spectra .fit I load on the server, cannot attach them here. Regards, Martin
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| Autor: | Berthold Stober [ 22. Mai 2013, 17:02:46 PM ] |
| Betreff des Beitrags: | |
hello Martin, thank you so much for your vital work, which is extremly important for this compagne. As far as the ripples are concerned, you expected that the F-numbers of calibrationlight and starlight are not identical. Now I like to confirm this asumption: Calibration light comes with F=~5 , star light in the configuration of these first spectra came with F~7.3. This situation will improve due to a further modification which underway now. The shapley will be moved closer to the secondary morror, which should give a faster F-number i.e.closer to F=5 cheers berthold and Norbert |
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