Thanks Miguel for your comment about the P Cygni spectrum . I tried to do it take care of response calibration. This is what I obtain. Is that better ?
Thanks a lot for comments
Vincent Marik
Attachments
Réponse instrumentale.JPG (24.41 KiB) Viewed 3586 times
The instrument response correction looks pretty good
Here is a very high resolution spectrum from the ELODIE archive http://atlas.obs-hp.fr/elodie/
for comparision
Cheers
Robin
Attachments
elodie-19980614-0031.png (13.15 KiB) Viewed 3579 times