Other
Scientific paper
Sep 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..632p&link_type=abstract
Chandra Proposal ID #02600286
Other
Chandra Proposal Id #02600286
Scientific paper
Recent Chandra surveys discovered a number of strong hard X-ray sources associated with otherwise ``normal'' early-type galaxies. An excellent test case to study this phenomenon is represented by the giant elliptical IC4296, for which we propose a 25 ksec ACIS-S observation. In fact previous ASCA and BeppoSAX observations of this galaxy reveal an excess of hard X-ray emission that could be due to a low luminosity active nucleus. Optical spectroscopy however does not reveal any sign of nuclear activity. A Chandra ACIS-S pointing would establish 1) whether the excess of hard X-ray emission is nuclear, and 2) what is its spectral shape, providing fundamental clues to its origin. Further contraints will come from VLBI and VLBA observations recently conducted or planned.
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