Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..408...69w&link_type=abstract
The Starburst-AGN Connection. ASP Conference Series, Vol. 408, proceedings of the conference held 27-31 October 2008, at Shangha
Astronomy and Astrophysics
Astronomy
1
Scientific paper
We present our initial results from a study of 14 (U)LIRGs with double-nucleus (z<0.15) and AGN signature in the Chandra archive. The goals are to search for more possible presence of binary AGN and to investigate the X-ray properties and energy sources of these objects. Our spatial and spectral analyses did not reveal additional evidence for binary AGN besides the previously known cases: NGC 6240, Arp 299, Mrk 463. Most nuclei are weak X-ray sources and one LIRG is not detected by Chandra; Nine of these sources have clear X-ray counterparts to their double optical/near-IR nuclei, whereas two of them only have one obvious X-ray counterparts. Due to both the lack of Fe K line detected and the weak emission in hard X-ray band (2-10Kev) in these sources, our study does not provide additional confirmed example of binary AGN. We cannot rule out the possible existence of more binary AGN in highly obscured and unresolved systems, however.
Gao Yanfang
Wang Jeffrey
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