Temperature structure of a particle -- heated magnetic atmosphere

Details Temperature structure of a particle -- heated magnetic atmosphere Temperature structure of a particle -- heated magnetic atmosphere

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...280..169w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 280, no. 1, p. 169-173

Astronomy and Astrophysics

Astrophysics

26

Astronomical Models, Binary Stars, Protons, Radiation Transport, Radiative Transfer, Temperature Distribution, White Dwarf Stars, Coulomb Collisions, Cyclotron Radiation, Mass Flow, Mass Transfer, Mathematical Models, Stellar Magnetic Fields

Scientific paper

We present results of a fully frequency, angle, and depth dependent radiation transport calculation for the atmosphere of a magnetic white dwarf which is heated by a stream of free falling protons, losing their energy by Coulomb encounters with atmospheric electrons. We derive the functional dependencies between the ensuing maximum temperature and the thickness of the particle heated layer on the mass flow onto the atmosphere, the field strength, and the white-dwarf mass. In addition, we give a formula for the temperature structure inside the heated region which can be used to calculate the emitting cyclotron spectra in a rather quick way.

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