Chandra observations of the X-ray luminous star-forming galaxy merger Arp~299

Details Chandra observations of the X-ray luminous star-forming galaxy merger Arp~299 Chandra observations of the X-ray luminous star-forming galaxy merger Arp~299

2003-06-18

arxiv.org/abs/astro-ph/0306375v1

Astrophys.J.594:L31-L34,2003

Astronomy and Astrophysics

Astrophysics

7 pages, 2 figures, to appear in ApJ Lett

Scientific paper

10.1086/378144

We report results of a Chandra observation of the X-ray luminous star-forming galaxy Arp299 (NGC3690/IC694). We detect 18 discrete X-ray sources with luminosities above ~10^39 erg\s (0.5-8.0 keV band), which contribute ~40% of the total galactic emission in this band. The remaining emission is associated with a diffuse component spatially coincident with regions of widespread star-formation. We detect X-ray emission from both nuclei. One of the discrete sources within the complex nuclear region of NGC 3690 is found to have a very hard spectrum and therefore we associate it with the origin of the AGN-like spectrum that has also been detected at high X-ray energies using Beppo-SAX.

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