Global properties of infrared bright galaxies

Journal Article · Tue Aug 01 04:00:00 EDT 1989 · Astrophysical Journal, Supplement Series; (USA)

DOI:https://doi.org/10.1086/191355· OSTI ID:5220450

Young, J S; Xie, Shuding; Kenney, J D.P.; Rice, W L ^[1]

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1. Five College Radio Astronomy Observatory, Amherst, MA (USA)

Infrared flux densities of 182 galaxies, including 50 galaxies in the Virgo cluster, were analyzed using IRAS data for 12, 25, 60, and 100 microns, and the results were compared with data listed in the Point Source Catalog (PSC, 1985). In addition, IR luminosities, L(IRs), colors, and warm dust masses were derived for these galaxies and were compared with the interstellar gas masses and optical luminosities of the galaxies. It was found that, for galaxies whose optical diameter measures between 5 and 8 arcmin, the PSC flux densities are underestimated by a factor of 2 at 60 microns, and by a factor of 1.5 at 100 microns. It was also found that, for 49 galaxies, the mass of warm dust correlated well with the H2 mass, and that L(IR) correlated with L(H-alpha), demonstrating that the L(IR) measures the rate of star formation in these galaxies. 74 refs.

• OSTI ID: 5220450
• Journal Information: Astrophysical Journal, Supplement Series; (USA), Journal Name: Astrophysical Journal, Supplement Series; (USA) Vol. 70; ISSN APJSA; ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
COLOR
COMPARATIVE EVALUATIONS
COSMIC DUST
COSMIC GASES
DUSTS
ELECTROMAGNETIC RADIATION
FLUIDS
FLUX DENSITY
GALAXIES
GALAXY CLUSTERS
GASES
INFRARED RADIATION
INTERSTELLAR SPACE
LUMINOSITY
MASS
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
RADIANT FLUX DENSITY
RADIATION FLUX
RADIATIONS
SATELLITES
SPACE
STAR EVOLUTION
TABLES