Abstract
A radial velocity study of the AM Herculis-type X-ray binary 2A 0311-227
was performed. Phase-dependent changes in profile were observed; the
line bases have K = 430 km/s and the peaks have K = 240 km/s. The peaks
have a phase lag of 25 deg relative to the bases, and the Balmer lines
exhibit drastic changes in strength through the cycle in the sense that
they are weak for large velocity displacements of the lines. It is
suggested that the emission lines may arise from material in a magnetic
funnel dropping onto the magnetic pole of a white dwarf.
Original language | English (US) |
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Pages (from-to) | 946-954 |
Journal | Astrophysical Journal, Part 1 |
Volume | 238 |
DOIs | |
State | Published - Jun 1 1980 |
Externally published | Yes |