ISO Images of Starbursts and Active Galaxies
Abstract
We present some highlights from the mid-infrared (5-16 micron) images of mergers of massive galaxies obtained with the Infrared Space Observatory (ISO). We have observed: 1) ultraluminous infrared nuclei, 2) luminous dust-enshrouded extranuclear starbursts, and 3) active galaxy nuclei (AGNs). In this contribution we discuss the observations of Arp 299, a prototype for very luminous infrared galaxies, the Antennae which is a prototype of mergers, and Centaurus A which is the closest AGN to Earth. From these observations we conclude the following: 1) the most intense starbursts in colliding systems of galaxies and the most massive stars are dust-enshrouded in regions that appear inconspicuous at optical wavelengths, 2) the most intense nuclear infrared sources are a combination of AGN and starburst activity, 3) the hosts of radio loud AGNs that trigger giant double-lobe structures may be symbiotic galaxies composed of barred spirals inside ellipticals.
Cite
@article{arxiv.astro-ph/9908188,
title = {ISO Images of Starbursts and Active Galaxies},
author = {I. F. Mirabel and O. Laurent},
journal= {arXiv preprint arXiv:astro-ph/9908188},
year = {2009}
}
Comments
7 pages, 4 figures, Conference in Johannesburg, South Africa, September 13-18 1999. To be published as a special issue of the journal "Astrophysics and Space Science"