The Enigmatic Interacting Binary Star AX Monocerotis

Details The Enigmatic Interacting Binary Star AX Monocerotis The Enigmatic Interacting Binary Star AX Monocerotis

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...187.4308e&link_type=abstract

American Astronomical Society, 187th AAS Meeting, #43.08; Bulletin of the American Astronomical Society, Vol. 27, p.1342

Astronomy and Astrophysics

Astronomy

1

Scientific paper

AX Monocerotis is unusual for a binary with an ~ 232(d) .5 orbital period: a K giant star, a Be-like giant star, and large amounts of circumbinary material. Either or both components may be in contact with their critical lobes. The Be star exhibits very wide line widths corresponding to vsin i ~ 230 km s(-1) , which may or may not be related to the stellar rotation rate. We present several possible models for AX Mon based on 1) archival visible photometry, 2) archival ultraviolet spectroscopy, 3) new and archival visible spectroscopy, 4) new visible polarimetry, and 5) new radio photometry. Additional comments are presented concerning how optical interferometer observations would improve the orbital elements (resolving the stars in continuum) and provide additional information concerning its circumbinary environment (resolving the envelope in hydrogen emission, Mg II absorption, and Na I absorption).

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