S
J
Last name: SAREYAN
First name: J.-P.
Astron. & Astrophys., 453, p. 1041 (2006)
We present the results of simultaneous uvbyβ photometry carried out from 1999 to 2001 of the variable V2109 Cyg together with a spectroscopic analysis based on one high resolution spectrum obtained in 2000. From this study, the star is definitively classified as an evolved δ Sct-type variable with solar metal abundances. This conclusion is also...
n/a, MmSAI 77, p. 470 (2006)
Astronomy and Astrophysics, v. 426, p. 247-252, 2004. http://dx.doi.org/10.1051/0004-6361:20034068
Mutual event observations between the two components of 90 Antiope were carried out in 2007-2008. The pole position was refined to λ = 199.5 ± 0.5° and β = 39.8 ± 5° in J2000 ecliptic coordinates, leaving intact the physical solution for the components, assimilated to two perfect Roche ellipsoids, and derived after the 2005 mutual event season...
We present the first results of a 2-year high-resolution spectroscopy campaign of 59 candidate $\gamma$ Doradus stars which were mainly discovered from the HIPPARCOS astrometric mission. More than 60% of the stars present line profile variations which can be interpreted as due to pulsation related to $\gamma$ Doradus stars. For all stars we...