Galaxies in Collision: Arp 273
Abstract
Arp 273 comprises two colliding galaxies, a spectacular face-on large spiral galaxy and a smaller edge-on disk galaxy, at a distance of 110 Mpc. A multicolor HST image of the system, which extends over more than 100 arc seconds, shows great detail including many regions characterized by blue colors and/or dust where star formation must be ongoing. We propose to observe the system with ACIS-S for 50 ks to locate and study the luminous X-ray binaries and ultraluminous X-ray sources with luminosities above 10(39) ergs/s. We will then investigate the luminosity function of the X-ray sources, the relationships between the sources and the star formation regions, and what the sources can say about the system geometry, dynamics, and evolution.
- Publication:
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Chandra Proposal
- Pub Date:
- September 2014
- Bibcode:
- 2014cxo..prop.4407L