Nature of the AM Herculis system /3U 1809+50/

Details Nature of the AM Herculis system /3U 1809+50/ Nature of the AM Herculis system /3U 1809+50/

Aug 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977pazh....3..341m&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal, vol. 3, Aug. 1977, p. 341-345. In Russian.

Astronomy and Astrophysics

Astronomy

1

Binary Stars, Dwarf Stars, Optical Polarization, Ultraviolet Astronomy, X Ray Sources, Circular Polarization, Linear Polarization, Photosphere, Stellar Magnetic Fields, Stellar Mass Accretion

Scientific paper

This letter proposes that the observed large linear and circular polarization of optical emission from AM Her arises in the photosphere of a degenerate dwarf having a magnetic field of at least 200 million gauss and located in a close binary system. It is shown that the distance to the system is no more than about 10 pc, that the X radiation is produced by accretion onto the magnetic dwarf, and that the nondegenerate star is situated within the dwarf's magnetosphere. The variable UV and X-ray luminosity of AM Her and its flare activity are attributed to unsteady-state mass outflow.

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