Far infrared radiation from elliptical galaxies

Details Far infrared radiation from elliptical galaxies Far infrared radiation from elliptical galaxies

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989azh....66..527v&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 66, May-June 1989, p. 527-536. In Russian.

Astronomy and Astrophysics

Astronomy

1

Black Holes (Astronomy), Elliptical Galaxies, Far Infrared Radiation, Infrared Sources (Astronomy), Star Clusters, Cool Stars, Cosmic Dust, Galactic Nuclei, Infrared Astronomy Satellite, Supergiant Stars

Scientific paper

Infrared radiation for 35 nearby elliptical galaxies is analyzed and IR fluxes at 12, 25, 60, and 100 microns are investigated. It is shown that the radiation at a wavelength of 60-100 microns belongs to cold dust with a color temperature of 25-45 K located in the nuclei of galaxies with a diameter of several kpc. The radiation at a wavelength of 12-25 microns with a color temperature of 150-260 K may belong either to the dust concentrated near compact sources in the galactic center (a star cluster or a black hole) or to the dust in the envelopes of low-mass cold giants.

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