Search found 140 matches

by Thierry Lemoult
Mon Oct 08, 2018 7:29 pm
Forum: Beginners corner
Topic: Premiers spectres : P-Cygni et WR136 (First spectra !)
Replies: 6
Views: 6473

Re: Premiers spectres : P-Cygni et WR136 (First spectra !)

Hello

Effectivement tres chaud... j ai inversé le rouge et le bleu dans ma tête en redigeant le message... j ai besoin de lunette ?

Encore bravo Marian

Thierry
by Thierry Lemoult
Mon Oct 08, 2018 12:42 pm
Forum: Beginners corner
Topic: Premiers spectres : P-Cygni et WR136 (First spectra !)
Replies: 6
Views: 6473

Re: Premiers spectres : P-Cygni et WR136 (First spectra !)

Hello Marian Felicitation. Cela m'a l'air maitrisé. Peux-tu nous envoyer un liens vers tes fichiers "fits" ? Je reconnais bien WR136. Le continium est bien. Une legère pente décroissante vers le bleu. Un objet très froid donc. Je l'avais observé en 2013 ici: https://perso.crans.org/lemoult...
by Thierry Lemoult
Wed Sep 27, 2017 12:22 pm
Forum: Spectra, results, information on activity ...
Topic: planetary nebula NGC 7027
Replies: 0
Views: 2218

planetary nebula NGC 7027

Hello At OHP summer 2017 star party, i get a low resolution spectrum of NGC7027. It's small 14 arcsec diameter, but very bright. A very rich spectrum, i put some legend with the help of : https://arxiv.org/abs/astro-ph/0507155 _ngc7027_20170726_977_Thierry Lemoult_double_note.png ngc7027_2D.jpg Thie...
by Thierry Lemoult
Mon Aug 28, 2017 8:09 am
Forum: Spectroscopes and Softwares
Topic: CMOS vs CCD for spectroscopy applications
Replies: 17
Views: 16359

Re: CMOS vs CCD for spectroscopy applications

Hello Christian Very impressive work. I really love your article. Thank you. In case of a spectro with fiber, we can put in in a fridge. Perhaps you can try to put a CMOS camera at -20°C ambiant (in a fridge) to check the dark of detector at @-45°C. And also check is the camera still work at such te...
by Thierry Lemoult
Mon Jul 17, 2017 9:01 am
Forum: Spectroscopes and Softwares
Topic: Use of CMOS detector for faint object spectrography
Replies: 31
Views: 45056

Re: Use of CMOS detector for faint object spectrography

Hello Whaou, 1.1e- de bruit de lecture ! Bravo Christian pour ces avancées. Je pense aux spectres de NP super faible... Cela pourrait être bien a condition d'arriver a concentrer le flux sur les petits pixels. Lors de notre mission a saint veran sur le NP, on utilisait le LISA+ATIK460 en bin 2x2 don...
by Thierry Lemoult
Sat Dec 03, 2016 9:01 pm
Forum: Spectra, results, information on activity ...
Topic: WR140 aproaching periastron
Replies: 44
Views: 35249

Re: WR140 aproaching periastron

I got a spectrum tonight of WR140. With eShel R=11000, ATIK460, Celestron C14.
But i forget who collects these data ?

Regards

Thierry Lemoult
by Thierry Lemoult
Sun Nov 13, 2016 9:23 pm
Forum: Spectra, results, information on activity ...
Topic: Statut de HD 9878 [Be]?
Replies: 8
Views: 7261

Re: Statut de HD 9878 [Be]?

Hello Thanks for these spectrum. A congratulation to Yolande and Gérard.
I will integrate these spectrum soon in the ARAS dedicated page here http://www.astrosurf.com/aras/be_candid ... idate.html

Regards

Thierry Lemoult
by Thierry Lemoult
Fri Jan 01, 2016 11:24 am
Forum: Outbursts, Alerts, Monitoring
Topic: 28 CMa outburst
Replies: 7
Views: 7948

Re: 28 CMa outburst

Hello

I took a new spectrum of 28 Cma last night and the night before. The Ha emission continusly increase. Relative continuous: more than 5 unit now.
LHIRES 2400T, Telescope Newton 200mm. R=17000. From Abu dhabi, lat=25°N. This star is high is the sky. Alt=35°
cmp-lemoult-DongLi.png
cmp-lemoult-DongLi.png (5.42 KiB) Viewed 7682 times
by Thierry Lemoult
Sat Oct 24, 2015 6:28 pm
Forum: Be Search
Topic: HD 184061, a possible Be star?
Replies: 9
Views: 33082

Re: HD 184061, a possible Be star?

Hello
Nice finding Paolo. I just updated the page http://www.astrosurf.com/aras/be_candid ... idate.html with this new possible Be star.
Thierry
by Thierry Lemoult
Mon Aug 10, 2015 9:40 pm
Forum: What are you observing tonight ?
Topic: Collimated scope :-)
Replies: 3
Views: 3343

Re: Collimated scope :-)

Hello
De même de mon coté, les led IR de mes cameras restent allumés. Cela crée un très léger pic vers 800nm avec le dôme fermé.
Mais je ne crois pas l'avoir vu avec le cimier ouvert, et le télescope qui regarde le ciel.
Thierry