Short-period Optical Pulsations in Swift J010745.0-722740
Abstract
Recently, Maggi et al. (ATel #5778) announced the discovery that Swift J010745.0-722740 is a new SMC Be/X-ray binary which undergoes prominent optical outbursts (~0.5 mag) about every 1180 d. They identify the optical counterpart as emission-line star [MA93]1641. OGLE-IV observations show the quiescent magnitude of the system is I~15.1 but with considerable scatter. We have analyzed the data between outbursts looking for possible short-term periodicities.
- Publication:
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The Astronomer's Telegram
- Pub Date:
- January 2014
- Bibcode:
- 2014ATel.5781....1S
- Keywords:
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- Optical;
- X-ray;
- Binary