Spectroscopy of the AM Herculis type binary 2A 0311-227

Details Spectroscopy of the AM Herculis type binary 2A 0311-227 Spectroscopy of the AM Herculis type binary 2A 0311-227

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.196..425b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 196, Aug. 1981, p. 425-434. Research supported by the Science Research

Other

12

Binary Stars, Line Shape, Radial Velocity, Stellar Models, Stellar Spectrophotometry, Astronomical Maps, Spectral Resolution, Stellar Motions, Temporal Resolution, X Ray Sources

Scientific paper

Time-resolved spectroscopy of 2A 0311-227 with 2 A resolution is presented. The observations show large variations in the emission line profiles with orbital phase. A double peaked structure is observed at certain phases, and this appears to move with a larger radial velocity amplitude than the base of the line. Several possible models to explain the double structure are discussed. Comparison with other spectroscopic studies of 2A 0311-227 indicates changes in the behavior of the system on a time scale of months.

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