VV-114, A HIGH INFRARED LUMINOSITY INTERACTING GALAXY SYSTEM

Citation
Ra. Knop et al., VV-114, A HIGH INFRARED LUMINOSITY INTERACTING GALAXY SYSTEM, The Astronomical journal, 107(3), 1994, pp. 920-929
Citations number
22
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00046256
Volume
107
Issue
3
Year of publication
1994
Pages
920 - 929
Database
ISI
SICI code
0004-6256(1994)107:3<920:VAHILI>2.0.ZU;2-B
Abstract
VV 114 is a nearby example of a far-infrared bright, high luminosity ( L(FIR) > 10(11) L.) interacting galaxy pair. At a redshift of z=0.02 i t provides an opportunity to study SuCh interacting galaxies at a favo rable spatial scale (390 pc arcsec-1). This paper presents new high re solution near-infrared (1.25-3.7 mum) and visible images, and visible spectra of VV 114. A picture emerges of a system with widespread massi ve star formation throughout both interacting galaxies. The brighter v isible galaxy (VV 114W) shows H II region-like emission in both visual spectra and near-infrared colors, with no more than two magnitudes of visual extinction. The brightest peak of infrared and radio emission (VV 114E) has extreme near-infrared colors and is located at a minimum of visible emission. This indicates a large concentration of dust in the nucleus of VV 114E that is nearly entirely obscuring a major lumin osity source in this system.