Rotational velocity distribution of A stars: searching for intrinsic slowly rotating normal A0-A1 stars

ROYER, F; GEBRAN, M; MONIER, R.; PINTADO, O. I.

Moscu

Congreso; Putting A Stars into Context: Evolution, Environment, and Related Stars; 2013

Russian Academy of science

Royer et al. (2007) showed a pronounceddouble peaked distribution of rotationalvelocities for A0-A1 stars, although all knownpeculiar and/or binary stars had been excludedfrom their sample.We present here the preliminary results ofthe abundance analysis for 47 A0-A1 "normal"main sequence stars selected from Royer etal´s sample with vsini < 65 km s-1. These highsignal-to-noise spectra collected with ELODIEand SOPHIE (OHP) will allow us to obtain aclean sample of low vsini normal A0-A1 starsand search for intrinsic slow rotators.