Elusive Active Galactic Nuclei in Starburst Galaxies

Computer Science

Scientific paper

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Chandra Proposal Id #04700592

Scientific paper

There is growing evidence that the optical classification of active galaxies is incomplete or even deceiving. We have identified a sample of starburst galaxies characterized by nuclear radio cores and by nuclear unresolved mid-IR sources, which strongly suggest the presence of a powerful, buried active nucleus, although the latter is not identified in the optical. We propose a pilot program with Chandra on a small subsample of these galaxies aimed at unambiguosly testing the presence of AGNs in their nuclei by detecting their X-ray signatures. If these starburst galaxies are confirmed to host buried AGNs this would have important implications on the estimate of the AGN fraction in the local Universe.

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