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 Betreff des Beitrags: epsilon Aurigae update
BeitragVerfasst: 02. Januar 2011, 16:45:43 PM 
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A Happy New Year to all eps Aur watchers

The list of amateur spectra taken during this eclipse has been updated and is available here (There are 494 spectra to date)
www.threehillsobservatory.co.uk/epsaur_spectra.htm
The findings to date based on these data will be presented in a poster paper on 11th January at the Seattle AAS meeting. The abstract can be found here.
http://tinyurl.com/epsaur-aas-poster-257-04
and the poster will be available on line at this address from 11th January
http://www.threehillsobservatory.co.uk/ ... 257_04.pdf

More observations are needed throughout this year, particularly from any observers able to take high resolution spectra through the difficult early summer period.

Best Wishes
Robin Leadbeater
www.threehillsobservatory.co.uk


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 Betreff des Beitrags: epsilon Aurigae update
BeitragVerfasst: 03. Januar 2011, 15:35:50 PM 
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Hello Robin,

On 01/02/2011 03:45 PM, Robin Leadbeater wrote:
Zitat:
A Happy New Year to all eps Aur watchers

The list of amateur spectra taken during this eclipse has been
updated and is available here (There are 494 spectra to date)
www.threehillsobservatory.co.uk/epsaur_spectra
This link does not work for me.

Best regards,
Otmar


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 Betreff des Beitrags:
BeitragVerfasst: 03. Januar 2011, 20:00:32 PM 
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Hallo Otmar,

da fehlt ein Unterstrich, sollte so heissen:
http://www.threehillsobservatory.co.uk/ ... pectra.htm

Gruss, Martin


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 Betreff des Beitrags:
BeitragVerfasst: 03. Januar 2011, 23:46:00 PM 
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Zitat:
Hallo Otmar,

da fehlt ein Unterstrich, sollte so heissen:
http://www.threehillsobservatory.co.uk/ ... pectra.htm

Gruss, Martin
I got it wrong originally but immediately edited it. (missing.htm) It is OK in the on line forum but I guess that the edit is not sent if you are getting the posts by email

Robin


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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 14. November 2014, 14:37:09 PM 
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Hallo Gemeinde,

als Ergebnis der Zusammenarbeit von Ams und Pros, hier ein Link zu einer Veröffentlichung in welcher unser Dr. L. Schanne massgeblich mit Auswertung unzähliger Spektren beigetragen hat:

http://www.aip.de/de/aktuelles/scientif ... lonaurigae

Es findet sich dort auch ein Link zum Paper.

Gruss,
Daniel

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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 14. November 2014, 14:48:58 PM 
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Hallo Daniel,
gibt es eie Veröffenlichung, die man unter arxiv.org erreichen kann?
Viele Grüße
Christian


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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 14. November 2014, 14:51:44 PM 
Man kann es selbst zu Archive.org hinzufügen:
https://web.archive.org/web/20141114125 ... lonaurigae

Gruß, Rainer

Nachtrag:
Entschuldigung, hätte ich den Sinn der Nachfrage von Christian früher
verstanden, hätte ich nicht solchen Unsinn geschrieben.
Ich gelobe schnelleres Nachdenken ;-)

Rainer


Zuletzt geändert von Rainer Borchmann am 14. November 2014, 17:23:45 PM, insgesamt 2-mal geändert.

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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 14. November 2014, 16:25:23 PM 
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And another recent paper on eps Aur with amateur spectra here :D
http://adsabs.harvard.edu/abs/2014MNRAS.445.2884M

Also 2 older ones
http://adsabs.harvard.edu/abs/2012JAVSO..40..729L
http://adsabs.harvard.edu/abs/2012JAVSO..40..718M

Cheers
Robin


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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 15. November 2014, 14:01:30 PM 
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Hi,

it´s not the contribution of some spectra from amateurs to that work. I meant the analysis work Lothar did on professional spectra from our STELLA/SES observations!

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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 15. November 2014, 14:36:49 PM 
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Hello Daniel,

Well the thread is titled "eps Aur update" and was started by me so I decided to provide an update :lol:

Yes of course Lothar's contibution is significant. Lothar and I worked on eps aur together during the eclipse and were given access to the Stella data during the eclipse. I concentrated on getting the most out of the amateur spectra while Lothar worked on the Stella data.

Lothar's work was particularly difficult because of the poor quality of many of the Stella spectra (much worse noise than my spectra at 7699A) This leads to a problem in this paper. It mentions my paper with measurements on the EW of the 7699A line but only to say they did not see the steps in the EW curve that we saw. They have included no data though for this line or estimates of their uncertainty so it is impossible to verify what they say. I have checked with Lothar and he believes the STELLA data is not good enough to show the steps. Unfortunately there is a risk people will see this paper with a famous professional as first author and ignore the better quality data I published. I am currently working with some more data from Appache Point observatory which is excellent quality and has already confirmed the steps we saw in the first part of the eclipse.

Cheers
Robin


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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 16. November 2014, 00:21:25 AM 
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Hi Robin,
Zitat:
Unfortunately there is a risk people will see this paper with a famous professional as first author and ignore the better quality data I published.
For the present example I do not see such a "risk" because you are a co-author of the paper. Because of that your data are an essential part of the results.

Cheers, Thomas


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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 16. November 2014, 16:55:04 PM 
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Hello Thomas,

Well you are very kind (and of course you know me and the quality of the data I produce) but when a statement appears in this paper like

"For the recent eclipse, EW measurements
by Leadbeater & Stencel (2010, 2012) suggested a stepwise
increase ............. This is not confirmed by the K I observations
of Potravnov & Grinin (2013) nor by our data in this paper."

is endorsed by someone of Strassmeier's status is it rather damaging to my paper.

Despite what is said in this statement there is in fact no EW data for this line in their paper and as far as I can tell from talking to Lothar no data is available, though Lothar has offered to make some measurements.

Citing Potravnov and Grinin's paper in support is also completely incorrect as this paper contains very few measurements of K7699A EW, certainly not enough to identify any deviations from a smooth curve and they made no comparison with my results at all. In fact I collaborated with Potravnov and Muthumarripan earlier this year, combining my complete data set with their partial sets to produce the new paper I mentioned above which shows good agreement between the 3 data sets.
http://arxiv.org/abs/1409.5493 Only my dataset has sufficient coverage to identify the "steps" however.

The referees for this paper failed to do their job as this statement should have either been removed or some evidence in support included.

Robin


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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 16. November 2014, 17:26:52 PM 
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Hi Robin, I understand your frustration, especially considering your regular data quality. You are already playing in the real science league. However, this might include disadvantageous experience with referees and/or journal policy. But please note that this is normal publication business and all readers will realize your data quality and your paper(s). And: Good data and carefull interpretation will always prevail. When they say "This is not confirmed by the K I observations of Potravnov & Grinin (2013) nor by our data in this paper." they only tell something about their interpretation of what they see. If correct or not, it is up to the interested reader to read all involved papers and find out. From my point of view this is a highly interesting "conflict" between two observer teams and the future will certainly tell who was right (very relaxing view for you, I would say). Such "conflicts" are normal business and, again, does not make your observations smaller. I am really sorry to say it but don't neglect the human factor in the publication business.

Cheers, Thomas


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 Betreff des Beitrags: Re: epsilon Aurigae update
BeitragVerfasst: 16. November 2014, 18:47:05 PM 
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PS:
Zitat:
is endorsed by someone of Strassmeier's status
You know that Strassmeier is also the journal editor himself? :D


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