Evolutionary study of the Be star 28 Tau

Details Evolutionary study of the Be star 28 Tau Evolutionary study of the Be star 28 Tau

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..272..274a&link_type=abstract

Active OB stars: structure, evolution, mass loss, and critical limits, Proceedings of the International Astronomical Union, IAU

Astronomy and Astrophysics

Astronomy

Stars: Fundamental Parameters, Stars: Evolution, Stars: Rotation

Scientific paper

We present an evolutionary study of 28 Tau, a Be star, in connection with its rapid rotation. The photometric data during the absence of its envelope in 1921 have been used to determine the effective temperature and luminosity of the star at the main sequence of the HR diagram. From an evolutionary model, we found that the mass and radius of the star are about 3.2 Msolar and 3.2 Rsolar respectively. The equatorial rotation velocity of the star, νe found to be close to its critical velocity, νcr where νe/νcr ~= 0.87.

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