Search found 39 matches
- Tue Jul 09, 2013 9:34 am
- Forum: Spectroscopes and Softwares
- Topic: Photometric slit for Alpy
- Replies: 4
- Views: 4538
Photometric slit for Alpy
Hello all, (version française en bas de ce message) As you know, Christian Buil showed impressive results on atmosphere transmission measurement (http://www.astrosurf.com/buil/atmosphere/transmission.htm) and precise instrumental response characterization (http://www.astrosurf.com/buil/isis/guide_re...
- Tue Jul 09, 2013 8:53 am
- Forum: Spectroscopes and Softwares
- Topic: Ne Ar lamp for Lisa
- Replies: 8
- Views: 9747
Re: Ne Ar lamp for Lisa
Hi all, Several of you ask for a Shelyak adaptation of the Neon-ARgon calibration lamp to the LISA & Lhires III. There is no "official plan" so far, for following reasons : - Relco lamp is much less bright than common Neon lamp - Relco lamp is not really a lamp, where Neon is. Keep in ...
- Tue Jul 09, 2013 8:23 am
- Forum: Spectroscopes and Softwares
- Topic: Problem with ARASBeAm
- Replies: 3
- Views: 3087
Re: Problem with ARASBeAm
Hi all,
Sorry for my late reaction here - I didn't see the post.
This is now solved. It was my fault (:<). We're currently working on some evolutions of BeSS, and I've made some modifications on ArasBeAm which should have been transparent... sorry for the confusion !
Friendly,
François
Sorry for my late reaction here - I didn't see the post.
This is now solved. It was my fault (:<). We're currently working on some evolutions of BeSS, and I've made some modifications on ArasBeAm which should have been transparent... sorry for the confusion !
Friendly,
François
- Tue Jul 09, 2013 8:14 am
- Forum: Outbursts, Alerts, Monitoring
- Topic: V1294 Aql Modification Ha Line
- Replies: 5
- Views: 4670
Re: V1294 Aql Modification Ha Line
Hello, Réaction rapide (je dis peut-être une bêtise) : vous avez deux spectres qui sont très voisins, et l'émission est bien en augmentation. Le seul souci (ce n'en est pas un), c'est que le continuum de Stéphane est à 0.6 - alors le pic à 3.5 est trompeur. Génial de pouvoir comparer les observation...
- Tue Jul 09, 2013 7:20 am
- Forum: Spectroscopes and Softwares
- Topic: Alpy600 Calibration Problem
- Replies: 16
- Views: 12713
Re: Alpy600 Calibration Problem
Hello Keith, I've tried to reproduce your problems... and I do (with recent images taken in conditions similar as yours). I've no solution so far. I just remember that the ISIS calibration algorithm is very sensitive to the pixel size parameter (it uses it to explore the spectrum to find Hbeta and s...
- Thu Jul 04, 2013 11:18 am
- Forum: Spectroscopes and Softwares
- Topic: Tests d'alim 12V pour CCD
- Replies: 5
- Views: 4149
Re: Tests d'alim 12V pour CCD
Olivier, Je viens de faire un essai avec ma "caméra de référence" (Atik 314L+), et j'obtiens gain = 0,690 e-/ADU RON = 7,63 e-. Attention à ce genre de mesure. Tu dis que tu n'as changé que l'alim... quand on joue avec les effets de compatibilité électro-magnétique (CEM) c'est un peu de la...
- Wed Sep 19, 2012 3:40 pm
- Forum: Spectroscopes and Softwares
- Topic: Réglages du LISA
- Replies: 16
- Views: 13155
Re: Réglages du LISA
Hello tous, Echange tout à fait passionnant. Je ne vais pas ajouter grand-chose, si ce n'est que le spectre semble effectivement décalé vers le bleu. La position nominale de la raie au milieu du motif de 5 qui entoure Ha doit être sur le pixel 1117. On arrive, avec beaucoup de doigté (et de patience...
- Sun Dec 18, 2011 2:32 pm
- Forum: Spectroscopes and Softwares
- Topic: Image fantôme / Ghost image ?
- Replies: 11
- Views: 12355
Re: Image fantôme / Ghost image ?
Thierry, J'ai lu et regardé rapidement tous les éléments que tu as montré. Pas de solution miracle qui me vient, mais on va trouver. Ca donne l'impression d'une réflexion parasite, comme tu dis, mais là, je ne vois pas d'où elle peut venir. Oui, la fente est sérigraphiée - le côté sérigraphie est cô...
- Fri Sep 30, 2011 6:04 pm
- Forum: Introduction / Présentation
- Topic: François Cochard
- Replies: 0
- Views: 2490
François Cochard
Hello, I'm an amateur astronomers for... some years now (;>), and discovered spectroscpy more than 10 years ago ! I've learned a lot through this community (Spectro-L, Aude...), and we've been up to create with Olivier Thizy Shelyak Instruments Company ( http://www.shelyak.com ), to develop spectrog...