Far-infrared observations of galactic nuclei

Details Far-infrared observations of galactic nuclei Far-infrared observations of galactic nuclei

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89.1520r&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, Oct. 1984, p. 1520-1530. Research supported by the National Radio Astronomy Obse

Astronomy and Astrophysics

Astronomy

105

Far Infrared Radiation, Galactic Nuclei, Galactic Radiation, Infrared Astronomy, Spiral Galaxies, Astronomical Catalogs, Astronomical Photometry, Carbon Monoxide, Color, Continuous Radiation, Luminosity, Nonthermal Radiation

Scientific paper

Measurements of far-infrared continuum emission from the central regions of 30 late-type galaxies, 24 of which were previously unreported, are given. Photometry covering wavelengths from 40 to 160 microns has been obtained, yielding information on luminosities, temperatures, and dust masses for most. Good correlations of the far-infrared luminosity with blue colors, reddening, and molecular line radiation are found, supporting the identification of the sources with the molecular cloud component in these galaxies, and strengthening the identification of the energy sources as the young massive stars formed from those clouds. Comparisons with 10-micron data indicate that such data are useful for statistical studies, but have too much scatter to use directly in the analysis of individual sources. Strong correlation with nonthermal radio continuum emission and radio-to-optical flux ratios suggest that massive star formation underlies a wide range of galactic activity.

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