Winds in late-type stars: temporal evolution

Details Winds in late-type stars: temporal evolution Winds in late-type stars: temporal evolution

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998larm.confe..59h&link_type=abstract

"IX Latin American Regional IAU Meeting, "Focal Points in Latin American Astronomy", held in Tonantzintla, Mexico, Nov 9-13, 199

Astronomy and Astrophysics

Astronomy

Scientific paper

Several theories have proposed to explain the mass loss in stellar winds. In particular, for late-type stars, the most promising acceleration mechanism for driving these winds involves the mass loss by an outward-directed flux of Alfven waves. The models are taken as stationary, isothermal and an acceleration mechanism is taken into account to explain the observed terminal velocity. In the present work, using the results of a stationary model for late-type stars as initial condition of magnetohydrodynamics simulations, we study the temporal evolution of the wind. We show how the physical conditions of a wind column changes with time using the numerical code ZEUS. The results of temporal evolution of density, velocity and magnetic field are presented.

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