AXAF Investigation of the Archetypal Ulirg: ARP 220

Details AXAF Investigation of the Archetypal Ulirg: ARP 220 AXAF Investigation of the Archetypal Ulirg: ARP 220

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..145c&link_type=abstract

Chandra Proposal ID #01700748

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Chandra Proposal Id #01700748

Scientific paper

We propose to observe Arp 220, the prototypical ULIRG, with AXAF with three complementary goals: (1) To detect or set strong limits on the hard X-ray emission from any dust-obscured AGN. This will finally settle the issue of the importance of an AGN in Arp 220 and other ULIRGs. (2) To examine the role of the hot interstellar medium in galaxy mergers. Of special importance is matching high resolutiuon AXAF images to HST and ground-based data to determine the role of dust, proto-globulars, and other features in the X-ray emission. (3) To determine the physical state of the extended superwind and look for any interaction with the Intergalactic Medium. We aim to understand the interaction between Arp 220 and its environment and thus the origin and fate of this highly luminous recent merger.

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