Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981natur.291..301s&link_type=abstract
Nature, vol. 291, May 28-June 4, 1981, p. 301-303. Deutsche Forschungsgemeinschaft
Astronomy and Astrophysics
Astronomy
9
Astronomical Spectroscopy, Millimeter Waves, Quasars, Radio Astronomy, Astronomical Photometry, Radio Telescopes, Signal To Noise Ratios, Synchrotron Radiation
Scientific paper
The quasar Q0420-388 was detected at a wavelength of 1 mm during part of a program of 1-mm observations of optically selected (magnitude less than 17.5) quasars. A strongly inverted spectrum was observed, confirming the high luminosity. The observations support the explanation of the radio-quiet quasar phenomenon as being due to very compact structures which are self-absorbed even at short, centimeter wavelengths.
Kreysa Ernst
Schultz G. V.
Sherwood W. A.
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