Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:astro-ph/9702203)
· References in the article
· Citations to the Article (15) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (5)
· NED Objects (3)
· Also-Read Articles (Reads History)
· HEP/Spires Information
·
· Translate This Page
Title:
Molecular Gas in the Spectacular Ring Galaxy NGC 1144
Authors:
Gao, Yu; Solomon, P. M.; Downes, D.; Radford, S. J. E.
Publication:
Astrophysical Journal Letters v.481, p.L35 (ApJL Homepage)
Publication Date:
05/1997
Origin:
APJ
ApJ Keywords:
GALAXIES: INDIVIDUAL NAME: ARP 118, GALAXIES: INDIVIDUAL NGC NUMBER: NGC 1143, GALAXIES: INDIVIDUAL NGC NUMBER: NGC 1144, GALAXIES: INTERACTIONS, GALAXIES: STARBURST, GALAXIES: ISM, INFRARED: GALAXIES, ISM: MOLECULES
DOI:
10.1086/310650
Bibliographic Code:
1997ApJ...481L..35G

Abstract

We have detected extremely wide (1100 km s-1) CO(1--0) emission from NGC 1144, an interacting, luminous infrared galaxy that is the dominant component of the Arp 118 system. The observations show that NGC 1144 is one of the most CO-luminous galaxies in the local universe, with a CO luminosity twice that of Arp 220. Maps with the IRAM interferometer show that the CO is not in or very near the Seyfert 2 nucleus, but in the 20 kpc diameter ring that extends halfway between NGC 1144 and the elliptical galaxy NGC 1143. The greatest gas concentration, with 40% of the CO luminosity, is in the southern part of the ring, in NGC 1144. Another 15% of the CO luminosity comes from the dominant 10 mu m source, a giant extranuclear H II region. The ring of molecular gas, the off-center nucleus, the ring extending halfway to the intruder, and the velocity of the intruder nearly equal to the escape velocity all show that Arp 118 is a ring galaxy produced by a collision of a massive spiral with an elliptical. The most spectacular property is the velocity range, which in Arp 118 is 2--3 times higher than in a typical ring galaxy. Arp 118 is a rare example of a very luminous, extended starburst with a scale of about 5--10 kpc and a luminosity of 3 x 1011 Lsolar.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints