Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344..889w&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 15, 1989, p. 889-900.
Astronomy and Astrophysics
Astrophysics
15
Cataclysmic Variables, Cyclotron Radiation, Magnetic Stars, Polarized Radiation, Stellar Mass Accretion, White Dwarf Stars, Circular Polarization, Electron Density Profiles, Emission Spectra, Light Curve, Linear Polarization, Main Sequence Stars, X Ray Sources
Scientific paper
Circularly and linearly polarized radiation from inhomogeneous cyclotron emission regions with uniform magnetic field and temperature but different electron density profiles are studied. Calculations show that the inhomogeneous models generally produce larger polarization for low harmonics and smaller polarization for high harmonics compared to the homogeneous models. Polarization light curves for different inhomogeneous models with a wide variety of parameters are presented, providing handy theoretical results to compare with observations. The observed polarization light curves of ST LMi, EF Eri, and BL Hydri are fitted using an inhomogeneous model for the first time, and good fits are obtained, supporting the hypothesis that the cyclotron emission regions of AM Her systems have a complicated structure.
Chanmugam G.
Wu Kinwah
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