Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988msngr..52...41v&link_type=abstract
ESO Messenger (ISSN 0722-6691), June 1988, p. 41-44.
Astronomy and Astrophysics
Astronomy
Cosmic Dust, Elliptical Galaxies, Radio Galaxies, Active Galactic Nuclei, Astronomical Photography, Infrared Astronomy Satellite, Thermal Emission
Scientific paper
The present study finds no clear evidence that radio galaxies contain dust more frequently than radio-quiet galaxies. While the galaxies detected at 100 microns by IRAS exhibit clear evidence for dust on direct images, indicating that the IR emission must be due to the dust's thermal emission, galaxies with an active nucleus may have a detectable FIR flux; in such a case, the IR emission would be associated with the activity of the nucleus.
Véron Pascal
Veron-Cetty M.-P.
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