Arp 220 – IC 4553/4: understanding the system and diagnosing the ISM

Sep, 2007
9 pages
Published in:
  • IAU Symp. 242 (2008) 437-445
Contribution to:
  • Published: Jan 25, 2008
e-Print:

Citations per year

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Abstract: (Cambridge University Press)
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.
  • GALAXIES ISM
  • GALAXIES NUCLEI
  • ISM MOLECULES
  • ISM MASERS
  • GALAXIES STARBURST
  • OH MEGAMASER
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