30 juin 2012

RR Lyrae 20120624 Maxima

 Average seeing, and a strong wind did not allowed a good snr on this new time serie taken during a maxima rising phase Data at least. Note line doubling of NaD and strong h alpha and h beta emission during rising phase.   http://www.astrosurf.com/garrel/web_RRLyrae_Hb_20120624/RRlyrare_Hb_300serie.html          
Posté par gabalou à 13:45 - - Permalien [#]

10 juin 2012

Last news of FF cam before poster publication at HVAR2012

Anatoly Miroshnichenko and Stephen Danford, from University of North Carolina in Greensboro have begun to analyze the large collection of data on FF cam, available in Bess database. "Dear colleagues,Let me congratulate you on a discovery of binarity of FFCam. Thierry'sinitial suggestion from a dynamic spectrum is confirmed bymeasurements of the radial velocity of the Ca I 6102.72 A line thatbelong to the cool component of the system. The orbital period is7.785 days. I have only measured one line. Its equivalent width isalmost... [Lire la suite]
Posté par gabalou à 10:59 - - Permalien [#]
Tags :