Arp 220 IC 4553/4: understanding the system and diagnosing the ISM
Abstract
Arp 220 is a nearby system in final stages of galaxy merger with powerful ongoing star-formation at and surrounding the two nuclei. Arp 220 was detected in HI absorption and OH Megamaser emission and later recognized as the nearest ultra-luminous infrared galaxy also showing powerful molecular and X-ray emissions. In this paper we review the available radio and mm-wave observational data of Arp 220 in order to obtain an integrated picture of the dense interstellar medium that forms the location of the powerful star-formation at the two nuclei.
- Publication:
-
Astrophysical Masers and their Environments
- Pub Date:
- March 2007
- DOI:
- arXiv:
- arXiv:0709.3441
- Bibcode:
- 2007IAUS..242..437B
- Keywords:
-
- galaxies: ISM;
- galaxies: nuclei;
- ISM: molecules;
- ISM: masers;
- galaxies: starburst;
- galaxies: OH Megamaser;
- Astrophysics
- E-Print:
- 9 pages, 4 figures, to appear in: IAU Symposium 242 Astrophysical Masers and their Environments