Fast Rotation vs. Metallicity

Details Fast Rotation vs. Metallicity Fast Rotation vs. Metallicity

2005-09-07

arxiv.org/abs/astro-ph/0509179v1

Astronomy and Astrophysics

Astrophysics

Societe Francaise d'Astronomie et d'Astrophysique, France (2005)

Scientific paper

Fast rotation seems to be the major factor to trigger the Be phenomenon. Surface fast rotation can be favored by initial formation conditions such as metal abundance. Models of fast rotating atmospheres and evolutionary tracks are used to determine the stellar fundamental parameters of 120 Be stars situated in spatially well-separated regions to imply there is between them some gradient of metallicity. We study the effects of the incidence of this gradient on the nature of the studied stars as fast rotators.

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