Spatial distribution of stellar rotational axes from Be Stars

Details Spatial distribution of stellar rotational axes from Be Stars Spatial distribution of stellar rotational axes from Be Stars

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010rmxac..38..123c&link_type=abstract

The Interferometric View on Hot Stars (Eds. Th. Rivinius & M. Curé) Revista Mexicana de Astronomía y Astrofísica (Serie de Confe

Astronomy and Astrophysics

Astronomy

Methods: Numerical, Methods: Statistical, Stars: Emission-Line, Be, Stars: Rotation

Scientific paper

In order to know the distribution of rotational velocities of Be stars, a standard assumption is used, namely that the rotational axes are uniformed distributed. We use here polarimetric projected angles data from almost 500 Be stars and we make a statistical analysis. Furthermore we perform a Monte-Carlo simulation that explains the observed features of the angles, confirming that it is indeed uniform distributed, but the projected angles possess a bimodal structure. This last features may change the conclusion about the rotational velocity distribution of these stars.

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