Abstract
The radiation transfer at the gyrofrequency in the coronae of magnetic white dwarfs is considered. The electron distribution over Landau levels, taking both radiative and collisional transitions into account, is obtained. The emissivity and absorption coefficients of extraordinary radiation at the gyrofrequency are calculated. The ranges of parameters where cyclotron lines are observed in emission or absorption are found. The upper limit on coronal plasma density (2×1011 cm−3) for isolated magnetic white dwarfs with absorption lines in the spectrum is specified.
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References
Angel, J. R. P.: 1978,Ann. Rev. Astron. Astrophys. 16, 478.
Bogovalov, S. V.: 1984,Pis'ma Astron. Zh. (in press).
Ginzburg, V. L.: 1970,The Propagation of Electromagnetic Waves in Plasmas, Pergamon Press, Oxford.
Green, R. F. and Liebert, J.: 1981,Publ. Astron. Soc. Pacific 93, 105.
Greenstein, J. L. and Oke, J. B.: 1982,Astrophys. J. 252, 285.
Meggitt, S. M. A. and Wickramasinghe, D. T.: 1982,Monthly Notices Roy. Astron. Soc. 198, 71.
Melrose, D. B. and Zheleznyakov, V. V.: 1981,Astron. Astrophys. 95, 86.
Mihalas, D.: 1978,Stellar Atmospheres, Freeman, San Francisco.
Pavlov, G. G., Mitrofanov, I. G., and Shibanov, Yu. A.: 1980a,Astrophys. Space Sci. 73, 63.
Pavlov, G. G., Shibanov, Yu. A., and Yakovlev, D. G.: 1980b,Astrophys. Space Sci. 73, 33.
Roulands, J., Sizonenko, V. L., and Stepanov, K. H.: 1966,Zh. Eksper. Teor. Fiz. 50, 994 (Soviet Phys.-JETP 23, 661).
Thomas, R. N.: 1957,Astrophys. J. 125, 260.
Tikhomirov, Yu. V.: 1984,Astron. Tsirk., (in press).
Zheleznyakov, V. V.: 1970,Radio Emission of the Sun and Planets, Pergamon Press, Oxford.
Zheleznyakov, V. V.: 1977,Electromagnetic Waves in Cosmic Plasma, Izd. Nauka, Moscow.
Zheleznyakov, V. V.: 1983,Astrophys. Space Sci. 97, 229.
Zheleznyakov, V. V.: 1984,Astrophys. Space Phys. 3, 119.
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Zheleznyakov, V.V., Litvinchuk, A.A. On the theory of cyclotron lines in the spectra of magnetic white dwarfs. Astrophys Space Sci 105, 73–84 (1984). https://doi.org/10.1007/BF00651209
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DOI: https://doi.org/10.1007/BF00651209