CX Dra survey

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Olivier GARDE
Posts: 1243
Joined: Thu Sep 29, 2011 6:35 am
Location: Rhône Alpes FRANCE
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CX Dra survey

Post by Olivier GARDE »

CX Dra spectrum change every day. According to the following publication, the period of this Be star is 6.696 days:
https://arxiv.org/abs/1601.00218
And by studying more than 100 spectra of the BESS database there seems to be another longer period between 340 and 415 days.

For the short period, it would be useful to obtain a spectrum per day, see more to determine the changes from one spectrum to another.

So your high resolution spectra (R > 5000) are welcome. You can upload your spectra in Bess :
http://basebe.obspm.fr/basebe/

Here's the evolution of CX Dra between October 3rd and today.
Image
As well as the observers and their contributions.
Image
Thank you to all of you
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
etienne bertrand
Posts: 1040
Joined: Mon Aug 31, 2015 11:26 am

Re: CX Dra survey

Post by etienne bertrand »

Merci Olivier pour ton travail. C'est une étoile intéressante, je vais la suivre aussi dès que je peux.
Pour l'instant la météo est vraiment pas top dans le Sud Ouest !
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