Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.218..201c&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 218, Jan. 15, 1986, p. 201-222. Research supported by t
Astronomy and Astrophysics
Astronomy
51
Cataclysmic Variables, Polarimetry, Stellar Mass Accretion, Stellar Orbits, Stellar Spectrophotometry, X Ray Binaries, Circular Polarization, Cyclotron Radiation, Light Curve, Linear Polarization, Shock Fronts, Stellar Magnetic Fields, Stellar Oscillations
Scientific paper
The authors report three seasons of observations of the AM Her-type variable star E1405-451. Orbital and long-term intensity and polarization variations are investigated. Evidence is found for irregular variations in the position of the accretion column on the surface of the primary. The authors use the derived orientations and observed ratios of linear to circular polarization to estimate a magnetic field of approximately 30 MG in the cyclotron emitting region. Various cyclotron emission calculations are compared, and the shock front calculations of Wickramasinghe and Meggitt are found to provide excellent quantitative fits to the observations. The authors confirm the existence of the 1 - 3 s quasi-periodic oscillations found by Mason et al.
Cropper Mark
Menzies John W.
Tapia Saul
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