Further Observations of the Intermediate Mass Black Hole Candidate ESO 243-49 HLX-1
Abstract
The brightest Ultra-Luminous X-ray source HLX-1 in the galaxy ESO 243-49 currently provides strong evidence for the existence of intermediate mass black holes. Here we present the latest multi-wavelength results on this intriguing source in X-ray, UV and radio bands. We have refined the X-ray position to sub-arcsecond accuracy. We also report the detection of UV emission that could indicate ongoing star formation in the region around HLX-1. The lack of detectable radio emission at the X-ray position strengthens the argument against a background AGN.
- Publication:
-
X-ray Astronomy 2009; Present Status, Multi-Wavelength Approach and Future Perspectives
- Pub Date:
- July 2010
- DOI:
- 10.1063/1.3475364
- arXiv:
- arXiv:1002.3404
- Bibcode:
- 2010AIPC.1248...93F
- Keywords:
-
- X-rays;
- galactic nuclei;
- stellar mass;
- brightness;
- clusters of galaxies;
- 98.70.Qy;
- 98.35.Jk;
- 97.10.Nf;
- 98.62.Qz;
- 98.65.Cw;
- X-ray sources;
- X-ray bursts;
- Galactic center bar circumnuclear matter and bulge;
- Masses;
- Magnitudes and colors;
- luminosities;
- Galaxy clusters;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Cosmology and Nongalactic Astrophysics
- E-Print:
- 4 pages, 2 figures. Accepted 11th of Feb 2010. Contributed talk to appear in Proceedings of "X-ray Astronomy 2009: Present Status, Multi-Wavelength Approach and Future Perspectives", Bologna, Italy, September 7-11, 2009, AIP, eds. A. Comastri, M. Cappi, and L. Angelini