A search for radio counterparts to Chandra ULX candidates
Abstract
We present a systematic search for radio counterparts to Ultraluminous X-ray (ULX) source candidates based on a cross-correlation of the Swartz et al. (2004) ULX catalogue based on Chandra data and the FIRST radio survey. We find seven cases of conspicuous peaks of radio emission that could be associated to ULX sources. Among these seven ULX radio candidates, three X-ray sources are located within 5 arcsec of the FIRST radio peaks. These three cases are shown and discussed individually.
- Publication:
-
Astronomische Nachrichten
- Pub Date:
- May 2011
- DOI:
- 10.1002/asna.201011505
- arXiv:
- arXiv:1010.3851
- Bibcode:
- 2011AN....332..384P
- Keywords:
-
- catalogs;
- radio continuum: galaxies;
- surveys;
- X-rays: binaries;
- Astrophysics - Cosmology and Extragalactic Astrophysics
- E-Print:
- 5 pages, 3 figures. Accepted for publication in the Astronomische Nachrichten, to appear in the proceedings of the conference "Ultra-Luminous X-ray sources and Middle Weight Black Holes" (Madrid, May 24-26, 2010). Resubmission corrects the Authors list and the acknowledgements