ESO 243-49 HLX-1: Possible outburst delayed by nearly a month
Abstract
We report on new results from our Swift-XRT monitoring of the best intermediate mass black hole candidate HLX-1 (Hyper Luminous X-ray source 1 - Farrell et al. 2009; Wiersema et al. 2010) in the galaxy ESO 243-49. HLX-1 displays properties similar to those observed in Galactic BH binaries: i) hard-to-soft transitions (Godet et al. 2009; Servillat et al. 2011); ii) the first detection of a radio jet-ejection emission associated with hard-to-soft transitions (Webb et al.
- Publication:
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The Astronomer's Telegram
- Pub Date:
- October 2013
- Bibcode:
- 2013ATel.5439....1G
- Keywords:
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- X-ray;
- Black Hole