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Cyclotron Emission Features in the Spectra of Polars with Low Accretion Rates

Published online by Cambridge University Press:  12 April 2016

E. D. Gospodchikov  and
A. V. Serber
E. D. Gospodchikov
Affiliation:
Higher School of General & Applied Physics, Nizhny Novgorod State University, 23 Gagarin prosp., 603950 Nizhny Novgorod, Russia
A. V. Serber
Affiliation:
Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov st., 603950 Nizhny Novgorod, Russia

Abstract

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We calculate non-LTE transfer of cyclotron-harmonics radiation in the hot spot of an accreting magnetic white dwarf (WD) in the case where the contribution of the accretion column to the observed radiation is negligible. The observed cyclotron spectra of a polar with a low accretion rate are found. Based on the theory developed, we interpret the cyclotron emission line spectra of the systems and determine physical conditions in the emission regions of HS 1023+3900 and HS 0922+1333.

Type
Part 3. B. Accretion Plasma diagnostics - Theory
Information
International Astronomical Union Colloquium , Volume 190: Magnetic Cataclysmic Variables , 2004 , pp. 201 - 207
Copyright
Copyright © Astronomical Society of the Pacific 2004

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