Meridional circulation caused by stellar rotation

Details Meridional circulation caused by stellar rotation Meridional circulation caused by stellar rotation

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978azh....55.1043p&link_type=abstract

(Astronomicheskii Zhurnal, vol. 55, Sept.-Oct. 1978, p. 1043-1056.) Soviet Astronomy, vol. 22, Sept.-Oct. 1978, p. 595-602. Tra

Astronomy and Astrophysics

Astronomy

16

Atmospheric Circulation, Meridional Flow, Stellar Atmospheres, Stellar Rotation, Electron Gas, Flow Velocity, Stellar Mass Accretion, Stellar Models, White Dwarf Stars

Scientific paper

A simple general equation is obtained for the velocity of meridional circulation caused by an arbitrary conservative deformation of a star with an arbitrary equation of state of the matter. On its basis the circulation in radiative and degenerate regions of rotating stars is analyzed for rigid-body and differential rotation. Possible consequences of circulation mixing are discussed: an anomalous content of C and N in stars with masses of about 2-3 solar masses, the existence of DB dwarfs in the presence of accretion, the additional luminosity of white dwarfs due to the burning of accreted hydrogen carried deep into the star by circulation, etc.

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