Ring galaxies as the cradle of ULXs
Abstract
Ring galaxies are unique laboratories to study the effects of galaxy interactions: they are characterized by high SFR,enhanced X-ray emission, and large number of ULXs. However only 4 source are published. We selected all collisional rings at z<0.02 from the Arp&Madore sample of southern ring galaxies for a statistical sample of 12. As a first step we ask for XMM-Newton snapshots of 8 galaxies that suit the XMM-Newton characteristics. We expect to detect the ring as a bright X-ray source, to which both gas and point sources (mostly ULXs) contribute. The non-detection of X-ray sources would represent an unexpected and important discovery, indicating that known the sources are quite different from the rest of the population.
- Publication:
-
XMM-Newton Proposal
- Pub Date:
- October 2011
- Bibcode:
- 2011xmm..prop...51W
- Keywords:
-
- Galaxies;
- Galactic Surveys;
- AM 0322-374;
- AM 1300-412;
- AM 0126-525;
- AM 1827-625;
- AM 1323-222;
- AM 1152-421;
- AM 1434-783;
- AM 2107-474