The ULX NGC 1313 X-2: an Optical Study Revealing an Interesting Behavior
Abstract
We present a summary of our ongoing efforts to study one of the brightest ultraluminous X-ray source, NGC 1313 X-2. Despite a large coverage in the X-rays, much of the information we have about the source and its environment comes from optical wavelengths. Here, we report on the properties of the stellar environment, and the differences in the optical counterpart between our two observing epochs (2003-2004 and 2007-2008). We summarize our ongoing program designed to look for radial velocity variations in the optical spectra and for photometric variability.
- Publication:
-
SIMBOL-X: Focusing on the Hard X-ray Universe
- Pub Date:
- May 2009
- DOI:
- arXiv:
- arXiv:0902.4431
- Bibcode:
- 2009AIPC.1126..201G
- Keywords:
-
- 95.85.Nv;
- 98.62.Js;
- 97.20.Li;
- 98.62.Mw;
- X-ray;
- Galactic nuclei circumnuclear matter and bulges;
- Giant and subgiant stars;
- Infall accretion and accretion disks;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Cosmology and Extragalactic Astrophysics
- E-Print:
- 3 pages, 2 figures, to appear in the proceedings of the second Simbol-X International Symposium "Simbol-X - Focusing on the Hard X-ray Universe", AIP Conf. Proc. Series, P. Ferrando and J. Rodriguez eds