The nature of the megamaser galaxy IC 4553 (Arp 220)
Open Access
- 1 October 1985
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 216 (3) , 701-711
- https://doi.org/10.1093/mnras/216.3.701
Abstract
The active galaxy IC 4553 (Arp 220) is distinguished both by the intrinsic strength of its OH maser emission (greater than that of any other OH maser) and by its far-infrared excess (higher than that of any other UGC galaxy). Optical and infrared observations made with the Anglo–Australian telescope are presented, and it is shown that the galaxy may be a Seyfert galaxy appearing different from conventional Seyferts largely because of its orientation. The nucleus, which is obscured by the edge-on galactic disc, is surrounded by a stellar halo which is seen as an extended infrared source and appears optically as two components, one on each side of the disc.Keywords
This publication has 0 references indexed in Scilit: