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Title: Submillimeter continuum emission from galaxies - Star formation and the interstellar medium in the local group dwarf IC 10

Abstract

Far-infrared (95 and 160 micron) maps and visual broad-band and line images of the nearby, luminous irregular galaxy IC 10 are discussed. Observations of the dust emission make it possible to constrain the total mass of gas and the rate of star formation derived for the galaxy. The total star-formation rate is estimated to be about 0.15 solar mass/yr, and the e-folding time for exhaustion of the interstellar gas due to the star formation is only a few billion years. To determine the source of the cool dust in emission at approximately 100-250 microns from many galaxies, 60, 100, and 160 micron photometry, obtained previously, is compared; and CO, H I, and dust emission is correlated. Based on the correlation between the various cool components of the interstellar medium, it is concluded that the likely location of the dust that dominates the emission at about 160, and possibly 100, microns is within both the diffuse atomic gas and in surface layers of molecular clouds. 57 refs.

Authors:
; ; ;  [1]
  1. Wyoming Infrared Observatory, Laramie (USA) Lowell Observatory, Flagstaff, AZ (USA) Yerkes Observatory, Williams Bay, WI (USA)
Publication Date:
OSTI Identifier:
6643399
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal; (USA)
Additional Journal Information:
Journal Volume: 355; Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMIC GASES; MASS; GALAXIES; STAR EVOLUTION; COSMIC DUST; EMISSION SPECTRA; FAR INFRARED RADIATION; GALACTIC EVOLUTION; INTERSTELLAR SPACE; LIMITING VALUES; MORPHOLOGY; VISIBLE RADIATION; DUSTS; ELECTROMAGNETIC RADIATION; FLUIDS; GASES; INFRARED RADIATION; RADIATIONS; SPACE; SPECTRA; 640105* - Astrophysics & Cosmology- Galaxies

Citation Formats

Thronson, Jr, H A, Hunter, D A, Casey, S, and Harper, D A. Submillimeter continuum emission from galaxies - Star formation and the interstellar medium in the local group dwarf IC 10. United States: N. p., 1990. Web. doi:10.1086/168744.
Thronson, Jr, H A, Hunter, D A, Casey, S, & Harper, D A. Submillimeter continuum emission from galaxies - Star formation and the interstellar medium in the local group dwarf IC 10. United States. https://doi.org/10.1086/168744
Thronson, Jr, H A, Hunter, D A, Casey, S, and Harper, D A. 1990. "Submillimeter continuum emission from galaxies - Star formation and the interstellar medium in the local group dwarf IC 10". United States. https://doi.org/10.1086/168744.
@article{osti_6643399,
title = {Submillimeter continuum emission from galaxies - Star formation and the interstellar medium in the local group dwarf IC 10},
author = {Thronson, Jr, H A and Hunter, D A and Casey, S and Harper, D A},
abstractNote = {Far-infrared (95 and 160 micron) maps and visual broad-band and line images of the nearby, luminous irregular galaxy IC 10 are discussed. Observations of the dust emission make it possible to constrain the total mass of gas and the rate of star formation derived for the galaxy. The total star-formation rate is estimated to be about 0.15 solar mass/yr, and the e-folding time for exhaustion of the interstellar gas due to the star formation is only a few billion years. To determine the source of the cool dust in emission at approximately 100-250 microns from many galaxies, 60, 100, and 160 micron photometry, obtained previously, is compared; and CO, H I, and dust emission is correlated. Based on the correlation between the various cool components of the interstellar medium, it is concluded that the likely location of the dust that dominates the emission at about 160, and possibly 100, microns is within both the diffuse atomic gas and in surface layers of molecular clouds. 57 refs.},
doi = {10.1086/168744},
url = {https://www.osti.gov/biblio/6643399}, journal = {Astrophysical Journal; (USA)},
issn = {0004-637X},
number = ,
volume = 355,
place = {United States},
year = {Tue May 01 00:00:00 EDT 1990},
month = {Tue May 01 00:00:00 EDT 1990}
}