The Optical Period of XMMU J005011.2-730026 (SXP214) from MACHO and OGLE-II Observations

Details The Optical Period of XMMU J005011.2-730026 (SXP214) from MACHO and OGLE-II Observations The Optical Period of XMMU J005011.2-730026 (SXP214) from MACHO and OGLE-II Observations

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3305....1s&link_type=abstract

The Astronomer's Telegram, #3305

Astronomy and Astrophysics

Astronomy

Optical, X-Ray, Binary, Neutron Star, Variables, Pulsar

Scientific paper

Recently, Coe et al. (2011, arXiv:1103.0195v1, MNRAS in press) announced the discovery of 214.05-s pulsations from the transient X-ray source XMMU J005011.2-730026. They identified the optical counterpart with a V~15 star that has weak H-alpha emission. The star is present in the MACHO, OGLE-II, and OGLE-III data bases. From analysis of only OGLE-III observations, these authors found a 4.520-day optical periodicity, which they tentatively attributed to non-radial pulsations of the Be star.

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