On a magnetohydrodynamical process of mass loss in AGB stars

Details On a magnetohydrodynamical process of mass loss in AGB stars On a magnetohydrodynamical process of mass loss in AGB stars

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.219..249p&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 219, no. 2, p. 249-256

Astronomy and Astrophysics

Astrophysics

2

Asymptotic Giant Branch Stars, Cool Stars, Magnetohydrodynamic Flow, Red Giant Stars, Stellar Envelopes, Stellar Magnetic Fields, Stellar Mass Ejection, Stellar Models, Stellar Winds, Boundary Conditions, Cosmic Dust, Magnetic Field Configurations, Magnetohydrodynamic Turbulence, Magnetohydrodynamic Waves, Numerical Integration, Photosphere, Radiation Pressure, Stellar Atmospheres

Scientific paper

A spherically, time independent model is constructed to explain the mass loss observed in cool giants. It is suggested that a random magnetic field frozen within the gas is capable of ejecting matter from the photosphere of asymptotic giant branch (AGB) (Mira or OH/IR) stars. The velocities at infinity of the ejected material are comparable to the observed velocities of expansion in circumstellar envelopes.

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