High Resolution Spectra from TBL / Narval by OATBL

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Jean-Paul Godard
Posts: 43
Joined: Mon Jul 28, 2014 4:17 pm

High Resolution Spectra from TBL / Narval by OATBL

Post by Jean-Paul Godard »

Etoiles à Forte Métallicité

Le planning du mois de février nous a permis d’obtenir le spectre de plusieurs étoiles à forte métallicité accessible dans une fenêtre d’observation délimitée.

HD 99747 ( F5VkF0mA9 ) ,
HD 71973 ( A2m ) ,
HR 3855 ( A5m ) ,
* 2 UMa ( A2m ),
* sig01 Cnc ( A8Vam ),
HR4286 ( A2m ) ,
* 67 UMa ( F0Vam ) ,
* 11 Cvn ( kA6hA7VmF3 ),
* 30 LMi ( F0VmF3/4 ) ,
V* GM UMa ( A4m ) ,
* A Hya ( A3m ) ,
* tau UMa ( kA5hF0mF5II ) ,
HR 4021 ( A7m ),
* f UMa ( kA3VmF5IIISr)
Image
Les spectres haute résolution correspondants sont accessibles sur simple demande auprès des OATBL.
Jean-Paul Godard
Alpy600+guidage+calib+spox
Francois Teyssier
Posts: 1521
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen
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Re: High Resolution Spectra from TBL / Narval by OATBL

Post by Francois Teyssier »

Bonjour Jean-Paul,

C'est impressionnant.
Est-ce que tu peux décrire l'observatoire et le matériel utilisé ?

François
Jean-Paul Godard
Posts: 43
Joined: Mon Jul 28, 2014 4:17 pm

Re: High Resolution Spectra from TBL / Narval by OATBL

Post by Jean-Paul Godard »

Bonjour François,

C'est sur le Télescope Bernard Lyot au Pic du midi (2m) avec l'instrument Narval, haute résolution (75 000)
Si tu veux, tu peux!!

http://www.ast.obs-mip.fr/projets/narval/v1/
Spectral resolution

The spectral resolution of NARVAL is 65,000 in polarimetric mode and 'star+sky' mode, and reaches 75,000 in 'star only' mode. This is very similar to what is achieved with ESPaDOnS. The curve on the right presents the resolving power of NARVAL in polarimetric mode (full line) compared with that of ESPaDOnS (dashed line) as a function of order number (red to the left and blue to the right).


How To ?

http://oatbl.free.fr

JPG
Jean-Paul Godard
Alpy600+guidage+calib+spox
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