Zeeman features from accretion columns in AM Herculis-type systems

Details Zeeman features from accretion columns in AM Herculis-type systems Zeeman features from accretion columns in AM Herculis-type systems

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.131..601w&link_type=abstract

(IAU, Colloquium on Cataclysmic Variables. Recent Multi-Frequency Observations and Theoretical Developments, 93rd, Bamberg, West

Astronomy and Astrophysics

Astrophysics

2

Absorption Spectra, Cataclysmic Variables, H Alpha Line, Polarimetry, Stellar Mass Accretion, Zeeman Effect, Cyclotron Radiation, Shock Waves, Stellar Spectrophotometry

Scientific paper

Absorption features seen in the bright phase spectra of E 1405-451 are identified with Zeeman features of Hα originating from cool (T ≡ 104 - 105K) material surrounding the accretion shock. The presence of apparently unshocked material surrounding the cyclotron emission region is surprising and may indicate that accretion occurs onto a larger fraction of the stellar surface than had previously been thought possible.

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