Forum der Vereinigung der Sternfreunde

I would appreciate some advice about learning IRAF or MIDAS, for the purpose of possibly having to reduce some professional echelle data. I have been told many times that there is a steep learning curve, so which one should I put my effort into learning? Also, where is the best place to start?

Regards,
Bernard Heathcote

_________________
Quicquid Nitet Notandum

Hello Bernhard,

I think the best software system for you is that you can have supporting by friends in your neighbourhood. IRAF and Midas are not simply to learn, so you will have need of a lot of support.

_________________
Herzliche Grüße / best regards

Lothar

https://lotharschanne.wordpress.com/

Hi Bernard,

If you can get some local advice, then I strongly encourage that. IRAF seems a little more typically used by pros, but that doesn't mean it is easy. However, there are some classic reference documents that help. See here:

http://iraf.noao.edu/docs/spectra.html

I guess you would need the ones on CCD reductions and then echelle reductions. I am not a big fan of IRAF's flat fielding for echelle spectra. I have almost always written custom software for that (but that is my own preference). I can offer some assistance with IRAF, but it will be difficult with the time zone difference.

Cheers,

Noel

Hi Noel,

Thanks for your advice, offer and the useful link. At the moment I am leaning towards IRAF but don?t really need to make a decision until our small southern eclipsing binary group finds out it it will be granted time on the AAO?s AAT/UCLES.

Cheers,
Bernard

From: Noel Richardson (fg-spek-data@vdsastro.de)
Sent: Friday, August 30, 2013 12:05 AM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Hi Bernard,

If you can get some local advice, then I strongly encourage that. IRAF seems a little more typically used by pros, but that doesn't mean it is easy. However, there are some classic reference documents that help. See here:

http://iraf.noao.edu/docs/spectra.html

I guess you would need the ones on CCD reductions and then echelle reductions. I am not a big fan of IRAF's flat fielding for echelle spectra. I have almost always written custom software for that (but that is my own preference). I can offer some assistance with IRAF, but it will be difficult with the time zone difference.

Cheers,

Noel





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_________________
Quicquid Nitet Notandum

Hi Bernard! From my experience you need direct support for both packages. Their documentations are not the final answer. I used them both and have a slight preference for IRAF. This might be because I first used MIDAS as an unexperienced master student and then IRAF for my PhD, though. I believe you need people who can nurish you and that are Otmar and Günter here in the forum. That is the reason why I recommend MIDAS. Support is important.

The problem remains that not many amateurs are doing it and we did not reach a critical mass (as in professional institutes) for lasting and reasonable support, yet. This is even more difficult as long as amateur tools fill our "market".

I would highly appreciate a "MIDAS user help desk" on our website including first steps, FAQ and a hotline in the forum. But similar efforts (Spectro-Wiki, Glossary) just did not proceed well. This is too sad because it is much better to learn a professional tool instead investing the same amount of work into an amateur tool.

Cheers, Thomas

Bernard,

I use MIDAS since 1995 and I like it. But there is no active community
around it. ESO lets MIDAS die slowly. So I would prefer IRAF wich is
developed further and there is also at least one a living forum.

So I will start learning IRAF this afternooon.



Regards,
günter

_________________
Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)

Hi Gunter,

Thank you for that informative bit of advice, as it has helped me also decide that IRAF is probably the best one to learn. Maybe you will be able to help me when I start?

Regards,
Bernard


From: GünterGebhard (fg-spek-data@vdsastro.de)
Sent: Wednesday, September 04, 2013 9:17 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Bernard,

I use MIDAS since 1995 and I like it. But there is no active community
around it. ESO lets MIDAS die slowly. So I would prefer IRAF wich is
developed further and there is also at least one a living forum.

So I will start learning IRAF this afternooon.



Regards,
günter



Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)





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Version: 2013.0.3392 / Virus Database: 3222/6636 - Release Date: 09/03/13

_________________
Quicquid Nitet Notandum

This is what I did today:

2013-09-04
ds9 is installed on my system
Download iraf.lnux.x86_64.tar.gz
Open a terminal
sudo mkdir -p /iraf/iraf
sudo mv iraf.lnux.x86_64.tar.gz /iraf/iraf/
cd /iraf/iraf
sudo tar xzf iraf.lnux.x86_64.tar.gz
add the line IRAF=/iraf/iraf/ to the file /etc/environment
Log out, log in
My system has no csh installed
open a terminal
sudo apt-get install csh
cd /iraf/iraf/unix/hlib
sudo ./install
Networking: no
Tapecap: no
==== Installation Completed With No Errors ===
cd
mkdir Working
cd Working
mkiraf
uparm: yes don't know what it is
terminal type: xterm
The first start:
cl
and stop:
logout

Download http://iraf.noao.edu/iraf/ftp/pub/beguide.ps.Z
print it and read it.

günter

_________________
Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)

Sounds like you did good at installation. The only thing I recommend is to redo the mkiraf with the terminal type set to 'xgterm'. IRAF (in my experience) needs that to do any graphics at all. NOAO offers the xgterm for installation with IRAF, so you will probably have to install it too.

The 'uparm' is a directory created off of your home directory for iraf that contains text files that are updated each time you use IRAF. These files will allow you to use procedures and then have the same options typed next time you are in IRAF.

Good luck!

Hi Gunther, and Noel

Very helpful!
If you can continue adding this type of installation and usage information it will be a valuable resource for all IRAF newcomers.

Cheers,
Bernard



From: GünterGebhard (fg-spek-data@vdsastro.de)
Sent: Wednesday, September 04, 2013 11:53 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




This is what I did today:

2013-09-04
ds9 is installed on my system
Download iraf.lnux.x86_64.tar.gz
Open a terminal
sudo mkdir /iraf/iraf
sudo mv iraf.lnux.x86_64.tar.gz /iraf/iraf/
cd /iraf/iraf
sudo tar xzf iraf.lnux.x86_64.tar.gz
add the line IRAF=/iraf/iraf/ to the file /etc/environment
Log out, log in
My system has no csh installed
open a terminal
sudo apt-get install csh
cd /iraf/iraf/unix/hlib
sudo ./install
Networking: no
Tapecap: no
==== Installation Completed With No Errors ===
cd
mkdir Working
cd Working
mkiraf
uparm: yes don't know what it is
terminal type: xterm
The first start:
cl
and stop:
logout

Download http://iraf.noao.edu/iraf/ftp/pub/beguide.ps.Z
print it and read it.

günter



Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)





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_________________
Quicquid Nitet Notandum

There is a tutorial consisting of 9 films at youtube

https://www.youtube.com/watch?v=BtTr_F08y7o


Regards
günter

_________________
Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)

Hi Gunther,

Brilliant ... you are worth your weight in gold!

Cheers,
Bernard


From: GünterGebhard (fg-spek-data@vdsastro.de)
Sent: Thursday, September 05, 2013 4:37 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




There is a tutorial consisting of 9 films at youtube

https://www.youtube.com/watch?v=BtTr_F08y7o


Regards
günter



Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)





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Checked by AVG - www.avg.com
Version: 2013.0.3392 / Virus Database: 3222/6639 - Release Date: 09/04/13

_________________
Quicquid Nitet Notandum

lieber Günter,

was heisst das bitte für mich? Muss ich da was machen?

"ds9 is installed on my system "


(vermutlich ist das bei mir nicht der Fall, aber ich weiss auch gar nicht was das ist "DS9")

Ich habe ja die virtuelle Maschine von Jürgen Neubert "fedora"

Finde das eine sehr gute Idee, die Befehlsfolge hier hinzuschreiben, so können auch Leute, die weniger durchblicken mit Linux da mit machen, mal sehen , wie weit ich komme.

herzlicher Gruss
berthold

Lieber Berthold,

die Videos auf youtube erklären das alles ganz genau. Es sollte egal
sein, ob Du Suse oder Ubuntu hast. Lediglich das Kommando
"apt-get install dingsbums" ist durch "rpm -i dingsbums" zu ersetzen und
statt "sudo -s" schreibst Du nur "su".

Herzliche Grüße
guenter

_________________
Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)

Danke für die Antwort. Ich habe fedora 11 kaum als root benutzt....zack, jetzt weiß ich das Passwort nicht mehr, um root zu werden.......J. Neubert scheint eine ädere Emailadresse zu haben, sodass ich den nicht direkt fragen kann......das Problem muss gelöst werden, sonst kann ich noch nicht mal anfangen.


Habe heute Nacht wieder die Nova del 2013 aufgenommen, mal sehen, ob sich was am h-alpha Profil geändert hat. Gestern habe ich versucht, de Nova mit einem 300L Gitter aufzunehmen, hat sich aber nicht so recht gelohnt. Auch 1000A westlich von halpha sieht man nicht viel und Profile kann man bei so geringer Auflösung nicht untersuchen.

Herzlicher Gruss Berthold

Am 05.09.2013 um 22:34 schrieb Günter Gebhard <fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)>:

Hallo,

endlich wieder mal was neues zum lernen! Stimmt es das die ESO MIDAS langsam aufgibt, sterben lässt?
IRAF ist sicherlich nicht einfacher wie MIDAS zu bedienen, worum es geht ist vielmehr die Frage der Unterstützung. Sollte MIDAS "auslaufen", wird es sicherlich nicht von Heute auf Morgen geschehen.

Gruß
Siegfried

Hallo Siegfried,
schau Dir bitte mal an, was hier steht:

http://www.eso.org/sci/software/esomida ... pport.html

Wir haben es sicher nicht eilig, aber irgendwann könnte eine Neuinstallation nicht mehr möglich sein, weil das Herunterladen abgeschaltet wird.
Ich selber ziehe es vor, mich so langsam mal mit IRAF zu befassen, um beide System parallel anwenden zu können. Die Installation ist nicht das Hauptproblem. Die dürfte im Notfall relativ schnell zu bewerkstelligen sein.
Aber vorher interessieren mich folgende Fragen:

-Gibt es neben den 9 Videos eine brauchbare Übersicht?
-Gibt es da ein Gegenstück zu Volume a und b?
-Wie sieht das mit den Datenformaten aus?
-Kann man die .bdf-Dateien auch nach IRAF importieren?

Viele Grüße
Christian

I am disappointed ... I started this topic with the hope of learning more, which I have done, not now that it has switched to German I am very much in the dark

Bernard


From: Christian Netzel (fg-spek-data@vdsastro.de)
Sent: Friday, September 06, 2013 5:38 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Hallo Siegfried,
schau Dir bitte mal an, was hier steht:

http://www.eso.org/sci/software/esomida ... pport.html

Wir haben es sicher nicht eilig, aber irgendwann könnte eine Neuinstallation nicht mehr möglich sein, weil das Herunterladen abgeschaltet wird.
Ich selber ziehe es vor, mich so langsam mal mit IRAF zu befassen, um beide System parallel anwenden zu können. Die Installation ist nicht das Hauptproblem. Die dürfte im Notfall relativ schnell zu bewerkstelligen sein.
Aber vorher interessieren mich folgende Fragen:

-Gibt es neben den 9 Videos eine brauchbare Übersicht?
-Gibt es da ein Gegenstück zu Volume a und b?
-Wie sieht das mit den Datenformaten aus?
-Kann man die .bdf-Dateien auch nach IRAF importieren?

Viele Grüße
Christian





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Checked by AVG - www.avg.com
Version: 2013.0.3392 / Virus Database: 3222/6639 - Release Date: 09/04/13

_________________
Quicquid Nitet Notandum

Am Freitag, den 06.09.2013, 09:38 +0200 schrieb Christian Netzel:
You can configure IRAF to work directly with fits image data.
No, better export bdf to fits inside of midas.
guenter

_________________
Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)

Soweit bin ich gekommen

[root@fedora8 iraf]# rpm -i tcsh
Fehler: Öffnen von tcsh fehlgeschlagen: Datei oder Verzeichnis nicht gefunden

aber heir komme ich mit fedora 8 nicht weiter.

Hat jemand eine Idee?

berthold

Hallo Bernard,

I've worked thru the videos 1, 2, 2.1 and did install it in a slightly
other way because I don't want to add an extra user iraf. I wrote all
changes not in login.cl, but in an extra file loginuser.cl.

See the contents here:

---------------loginuser.cl---------------------------------
set stdimage = imt4096
set pspage = a4
set imtype = "fits"

# noao main packages
astutil
imred
onedspec
twodspec

# noao.imred main packages
ccdred
crutil
generic

# reset helpdb = " "

reset tables
= /home/guenter/Spektroskopie/Working/Packages/STSDAS/tables/
task tables.pkg = tables$tables.cl
if (access("tables$lib")) reset helpdb= ( envget("helpdb") + ",tables
$lib/helpdb.mip" )

reset stsdas
= /home/guenter/Spektroskopie/Working/Packages/STSDAS/stsdas/
task stsdas.pkg = stsdas$stsdas.cl
task apropos = stsdas$apropos.cl
if (access("stsdas$lib")) reset helpdb= ( envget("helpdb") + ",stsdas
$lib/helpdb.mip" )

reset stecf
= /home/guenter/Spektroskopie/Working/Packages/STSDAS/stecf/
task stecf.pkg = stecf$stecf.cl
if (access("stecf$lib")) reset helpdb= ( envget("helpdb") + ",stecf
$lib/helpdb.mip" )

print "" # work around bug in CL parser

# stsdas main packages
stsdas
analysis
isophot
statistics
nebular

task
lacos_im=/home/guenter/Spektroskopie/Working/Packages/LACOS/lacos_im.cl

keep
----------------------------------------------------------------------------

Sorry, some lines are broken by my email editor. The broken parts all
start with a $ sign.

Regards
guenter

_________________
Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)

Hi Gunther,

Thank you for your help and congratulations on your installation. I will be away for a few days holiday so will only be able to do my installation later this month.

Cheers,
Bernard


From: GünterGebhard (fg-spek-data@vdsastro.de)
Sent: Saturday, September 07, 2013 8:06 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Hallo Bernard,

I've worked thru the videos 1, 2, 2.1 and did install it in a slightly
other way because I don't want to add an extra user iraf. I wrote all
changes not in login.cl, but in an extra file loginuser.cl.

See the contents here:

---------------loginuser.cl---------------------------------
set stdimage = imt4096
set pspage = a4
set imtype = "fits"

# noao main packages
astutil
imred
onedspec
twodspec

# noao.imred main packages
ccdred
crutil
generic

# reset helpdb = " "

reset tables
= /home/guenter/Spektroskopie/Working/Packages/STSDAS/tables/
task tables.pkg = tables$tables.cl
if (access("tables$lib")) reset helpdb= ( envget("helpdb") + ",tables
$lib/helpdb.mip" )

reset stsdas
= /home/guenter/Spektroskopie/Working/Packages/STSDAS/stsdas/
task stsdas.pkg = stsdas$stsdas.cl
task apropos = stsdas$apropos.cl
if (access("stsdas$lib")) reset helpdb= ( envget("helpdb") + ",stsdas
$lib/helpdb.mip" )

reset stecf
= /home/guenter/Spektroskopie/Working/Packages/STSDAS/stecf/
task stecf.pkg = stecf$stecf.cl
if (access("stecf$lib")) reset helpdb= ( envget("helpdb") + ",stecf
$lib/helpdb.mip" )

print "" # work around bug in CL parser

# stsdas main packages
stsdas
analysis
isophot
statistics
nebular

task
lacos_im=/home/guenter/Spektroskopie/Working/Packages/LACOS/lacos_im.cl

keep
----------------------------------------------------------------------------

Sorry, some lines are broken by my email editor. The broken parts all
start with a $ sign.

Regards
guenter



Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)





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Version: 2013.0.3392 / Virus Database: 3222/6644 - Release Date: 09/06/13

_________________
Quicquid Nitet Notandum

Hallo Günter,
das heißt, ich müßte alles, was ich bisher gemacht habe von *.bdf auf *fit konvertieren, wenn ich sicher sein will, auch später darauf Zugriff zu haben.
Viele Grüße
Christian

You should always convert your results into fits, because bdf is a
machine dependent format. Midas on SUN can not read the bdf from Linux,
so you could not share your files with others. BESS database and others
only accept files in fits format.

regards
guenter

_________________
Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)

In the login.cl file (created by the mkiraf command), you can edit preferences, much like you were doing with your own version... If you edit the line for image type to fits, then it will only work with fits files. If you change it, you would need to remove the # at the beginning of the line.

Hallo Günter,
wie ich glaube habe ich IRAF erfolgreich installiert. Jedenfalls kann ich es mit cl starten und komme mit logout auch wieder heraus. Ich habe Deinem Rat entsprechend eine Datei loginuser.cl als Kopie von login.cl erzeugt und dort all das ergänzt, was in der zum Video gehörigen Datei vorgeschlagen wird.
Ich weis nur nicht, ob es über login.cl oder loginuser.cl gestartet wird.
Ich habe ebenfalls ds9 und ubuntu-tweak installiert. Leider kann ich nirgendwo ersehen, wie ubuntu-tweak gestartet wird.
Gebe ich ds9 ein, erscheint folgende Fehlermeldung:
ds9: error while loading shared libraries: libXss.so.1: cannot open shared object file: No such file or directory.
Viele Grüße
Christian

Am Montag, den 09.09.2013, 19:33 +0200 schrieb Christian Netzel:
Please view the videos on youtube. Your problem is mentioned and solved
in http://www.youtube.com/watch?v=c5pEffG3l44 at 5:27.

guenter

_________________
Im längsten Frieden spricht der Mensch nicht so viel Unsinn und Unwahrheit als im kürzesten Kriege. (Jean Paul)

Hi all!

Please allow a general comment.

MIDAS is not out of business. "No more direct Midas support" means no further development and no direct questions to the developers but the software remains working and user groups still exist.

On the other hand, the application and use of IRAF is probably a good idea. But this discussion should not end in Nirvana and, hence, a good documentation for amateur users should be written, as Günter excellently has done for MIDAS. If IRAF should become a real user option this is the minimum to be done. The present discussion vanishes after a while, anyway.

Cheers, Thomas

Hallo Günter,
leider muß ich Dich nochmal um Hilfe bitten.
1. Ich habe die loginuser.cl durch kopieren von login.cl und anschließendem abändern der von Dir angegebenen Zeilen erstellt.
Bei Eingabe von cl erscheint folgende Fehlermeldung:
Error: package redefinition: 'user'
called as 'package(user)'
called as 'cl()'
called as 'cl()'
Error while reading login.cl file
In dem Beginner's Guide steht, daß loginuser.cl jeden Befehl in login.cl ersetzt. Daß package user in beiden Dateien vorkommt, kann also nicht die Ursache sein.

2. Ich finde die Datei .bashrc nicht
Viele Grüße
Christian

Den 2. Punkt konnte ich inzwischen selber klären, aber beim ersten bin ich nicht weitergekommen. Wenn ich die loginuser.cl-Datei weglasse läuft alles.
Viele Grüße
Christian

Hallo,

ich weiss nicht, ob die deutschsprachige IRAF-Anleitung bekannt ist:

http://www.hs.uni-hamburg.de/DE/Ins/Per ... eitung.pdf

Ist vielleicht von Interesse.

Grüsse,

Gerhard

Hallo,
hier ist noch englische Doku zu finden:

http://iraf.noao.edu/docs/spectra.html

Davon ist vor allem "A User's Guide to Reducing Slit Spectra with IRAF" wichtig. Für die Echelles bin ich auch fündig geworden.

http://iraf.noao.edu/tutorials/doecslit/doecslit.html

Verwiesen wird auch auf auf das Tololo cookbook Echelle Reductions with IRAF von Mario Hamuy und Lisa Wells. Aber am besten recherchieren die Echelle-Besitzer noch einmal selbst, da ich deren Anforderungen nicht genau kenne.

Die Videos zur Installation sind einfach schrecklich. Die Aussprache ist jedenfalls für mich kaum zu verstehen, die Untertitel verschwinden schon, bevor man sie zu Ende gelesen hat, geschweige denn verstanden hat. Zu den ersten zwei Videos gehören noch ausdruckbare Dateien, die das wichtigste wiedergeben. Allerdings wird das Ende des zweiten Videos schon nicht mehr erfasst. Das dritte Video muß man sich schnipselweise anschauen, um überhaupt dahinter zukommen, worin das Ziel besteht. Kurz gesagt, die sind völlig ineffektiv und können eine druckbare Anleitung nicht ersetzen.
Dagegen sind die nachfolgenden Videos erheblich besser, wobei ich sagen muß, daß ich erst bis Nr. 4 gekommen bin.
Viele Grüße
Christian

Hi all! I recall Bernards comment. He is entirely right! It would be very kind to consider his point in the sense of good partnership.

Christian! One can stop videos and refelect the contents as long as one wishes...

Cheers, Thomas

Hallo Thomas,
ich verstehe nicht ganz, weshalb Bernard enttäuscht ist. Seine Frage wurde auf englisch beantwortet. Ich fühle mich aber nicht verpflichtet, nun hier alles auf Englisch zu schreiben. Immerhin sind wir doch ein deutschsprachiges Forum und mein Englisch ist nicht besonders gut (da bin ich hier nicht der einzige) und außerdem gibt es mittlerweile automatische Übersetzungsmöglichkeiten.
Im übrigen habe Spektroskopie nicht als Hobby gewählt, um mich deswegen kritisieren zu lassen.
Viele Grüße
Christian

Hi Christian!

I understand Bernard well. If he wouldn't have opened this discussion (you as well profit from it) and if he wouldn't have complained I wouldn't have said anything. Yes, his questions are answered in english but as you benefit from his remarks he would benefit from yours. I think it is a matter of kindness to take this into consideration. And I believe your English is better than his German.

It's sad if you consider my request on behalf of a helpfull and highly experienced colleague as criticism. This was not my intention as my remark has nothing to do with your hobby. I am sorry if I appear offensive and maybe I am wrong but Bernard is sitting in down-under and he deserves maximum support from us.

Cheers, Thomas

PS: By self-definition this is not a pure German forum.

Hi Thomas,
in that case I recommend him to attend a German language course.
Cheers
Christian

Hi Thomas,
in that case I recommend him to attend a German language course.
Cheers
Christian

Hallo Bernard,
let tell me you in short what in meantime I could find out. Jürgen recommends

http://www.astrosen.unam.mx/~favilac/IRAF/

for an easy installation. Please be aware that you need ds9 and STSDAS too. I am not shure whether these tools are included in the link.
Usefull documents are

http://www.astro.uni-bonn.de/~lboldt/files/Iraf.pdf

and

A User's Guide to Reducing Slit Spectra with IRAF, Phil Massey, Frank Valdes, Jeannette Barnes, April 1992

A User's Guide to CCD Reductions with IRAF, Philip Massey, February 1997

which you will find under

http://iraf.noao.edu/docs/spectra.html

For using iraf you should read the guide in the first link and the user's guide to reducing slit spectra. The last guide to CCD reduction is not so important for the beginning. For further information on iraf is

http://www.astro.washington.edu/courses ... e_IRAF.pdf

very useful. I attach the modified login file (please rename to login.cl) and my workflow.
I hope that will help you at least for the beginning.
Yesterday I finished to reduce and calibrate a spectrum of Algol. I am convinced that iraf is superior to Midas.
Cheers
Christian

Hi,
ds9 is included. I will try to find out, which other components are being installed as well.

_________________
Gruss Jürgen

Bernard,

please find here http://www.astrosen.unam.mx/~favilac/IRAF/docs/ further introducing IRAF documents.

_________________
Gruss Jürgen

Hello,
I forgot to mention that the command hedit... in A User's Guide to Reducing Slit Spectra with IRAF, p. 28 is syntactically wrong. The correct version can be found in the guide of the university of Bonn, p. 18
Cheers
Christian

Hi Christian,

Even though I have been away on a short holiday I have tried to follow some of discussion on the (German) IRAF topic ... but I do appreciate your effort to translate the summary into English! I do use Google Translate but it appears less successful with German grammar than with Latin based languages, so a lot of the content is not very clear.

So far I have only had time to modify my Win7 desktop to (optionally) boot off an external USB drive that has the latest Ubuntu installed. I now need to take the next step of installing IRAF, DS9 and STSDAS ... the various guides will be a great help.

I am pleased and encouraged that you find IRAF impressive and have already been able to a spectrum!

Cheers,
Bernard



From: Christian Netzel (fg-spek-data@vdsastro.de)
Sent: Wednesday, September 18, 2013 8:00 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Hallo Bernard,
let tell me you in short what in meantime I could find out. Jürgen recommends

http://www.astrosen.unam.mx/~favilac/IRAF/

for an easy installation. Please be aware that you need ds9 and STSDAS too. I am not shure whether these tools are included in the link.
Usefull documents are

http://www.astro.uni-bonn.de/~lboldt/files/Iraf.pdf

and

A User's Guide to Reducing Slit Spectra with IRAF, Phil Massey, Frank Valdes, Jeannette Barnes, April 1992

A User's Guide to CCD Reductions with IRAF, Philip Massey, February 1997

which you will find under

http://iraf.noao.edu/docs/spectra.html

For using iraf you should read the guide in the first link and the user's guide to reducing slit spectra. The last guide to CCD reduction is not so important for the beginning. For further information on iraf is

http://www.astro.washington.edu/courses ... e_IRAF.pdf

very useful. I attach the modified login file (please rename to login.cl) and my workflow.
I hope that will help you at least for the beginning.
Yesterday I finished to reduce and calibrate a spectrum of Algol. I am convinced that iraf is superior to Midas.
Cheers
Christian






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_________________
Quicquid Nitet Notandum

Hi Jürgen,

Thank you for your help

Cheers,
Bernard


From: JürgenNeubert (fg-spek-data@vdsastro.de)
Sent: Wednesday, September 18, 2013 8:15 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Bernard,

please find here http://www.astrosen.unam.mx/~favilac/IRAF/docs/ further introducing IRAF documents.



Gruss Jürgen





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_________________
Quicquid Nitet Notandum

Hi Jurgen,

The ISO contents are listed at http://www.astrosen.unam.mx/~favilac/linastro.html

Cheers,
Bernard


From: JürgenNeubert (fg-spek-data@vdsastro.de)
Sent: Wednesday, September 18, 2013 8:09 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Hi,

Zitat: Please be aware that you need ds9 and STSDAS too. I am not shure whether these tools are included in the link.

ds9 is included. I will try to find out, which other components are being installed as well.



Gruss Jürgen





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_________________
Quicquid Nitet Notandum

The ?Zen of IRAF?, at http://www.astrosen.unam.mx/~favilac/IR ... 20iraf.pdf, appears to be a useful guide.

Bernard


From: Christian Netzel (fg-spek-data@vdsastro.de)
Sent: Wednesday, September 18, 2013 8:16 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Hello,
I forgot to mention that the command hedit... in A User's Guide to Reducing Slit Spectra with IRAF, p. 28 is syntactically wrong. The correct version can be found in the guide of the university of Bonn, p. 18
Cheers
Christian





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Checked by AVG - www.avg.com
Version: 2013.0.3408 / Virus Database: 3222/6676 - Release Date: 09/17/13

_________________
Quicquid Nitet Notandum

Hi Bernard,

if you want to install this package under Ubuntu, take the following steps:

1. download the appropriate ISO-File
2. Extract it e.g. in your home/Downloads folder
3. make the (e.g.) install32.sh file executable
4. execute the install32.sh -file as root in a terminal with "./install32.sh"
5. wait until the installation has finished
6. type "mkiraf" in the terminal and choose e.g. "xgterm"
7. that's it.

_________________
Gruss Jürgen

Thanks Jürgen, that information will be VERY helpful!

Cheers, Bernard

From: JürgenNeubert (fg-spek-data@vdsastro.de)
Sent: Wednesday, September 18, 2013 10:33 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Hi Bernard,

if you want to install this package under Ubuntu, take the following steps:

1. download the appropriate ISO-File
2. Extract it e.g. in your home/Downloads folder
3. make the (e.g.) install32.sh file executable
4. execute the install32.sh -file as root in a terminal with "./install32.sh"
5. wait until the installation has finished
6. type "mkiraf" in the terminal and choose e.g. "xgterm"
7. that's it.



Gruss Jürgen





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_________________
Quicquid Nitet Notandum

Hi,
here is a corrected version of my workflow. I inserted the last but one command dispcor.
Cheers
Christian

Hi Jürgen,

I have now updated my old version of VMWare to v.6, installed Ubuntu 13.04 and downloaded IRAFv216_32BITS.iso to my Download folder.

My problem now is that as I have not used Linux for a few years I am not very conversant with command line work and the instructions you kindly provided are not detailed enough for my present state of knowledge. To add to my confusion I found some instructions (below) from the author of the ISO file which are a bit different to yours:

$ sudo ?s
$ mount ?oloop IRAFv216_32BITS.iso/mnt
$ cd /mnt/
$ apt-get update (a good idea)
$ sh install32.sh
(follow onscreen instruction)
$ unmount /mnt

I am not sure which way I should go

Cheers,
Bernard




From: JürgenNeubert (fg-spek-data@vdsastro.de)
Sent: Wednesday, September 18, 2013 10:33 PM
To: fg-spek-data@vdsastro.de (fg-spek-data@vdsastro.de)
Subject: [fg-spek] Re: IRAF or MIDAS ... which to learn and how?




Hi Bernard,

if you want to install this package under Ubuntu, take the following steps:

1. download the appropriate ISO-File
2. Extract it e.g. in your home/Downloads folder
3. make the (e.g.) install32.sh file executable
4. execute the install32.sh -file as root in a terminal with "./install32.sh"
5. wait until the installation has finished
6. type "mkiraf" in the terminal and choose e.g. "xgterm"
7. that's it.



Gruss Jürgen





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Checked by AVG - www.avg.com
Version: 2013.0.3408 / Virus Database: 3222/6676 - Release Date: 09/17/13

_________________
Quicquid Nitet Notandum

Hi Bernard,

the instructions from the autor work perfectly.

_________________
Gruss Jürgen