New X-ray Outburst of ESO 243-49 HLX-1
Abstract
We report on recent Swift/XRT observations of the hyper-luminous X-ray source, HLX-1, in the galaxy ESO 243-49 (Farrell et al. 2009). Swift/XRT has been performing regular monitoring observations of HLX-1 since late-2008 and it is suggestive that the source has an outburst cycle of 373 days (see Kong 2011, arXiv:1102.3212; Lasota et al. 2011). The last X-ray outburst occurred in 2010 late-August (ATel #2821).
- Publication:
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The Astronomer's Telegram
- Pub Date:
- August 2011
- Bibcode:
- 2011ATel.3564....1K
- Keywords:
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- X-ray;
- Black Hole;
- Variables