Millimeter and submillimeter observations of 3C 273

Details Millimeter and submillimeter observations of 3C 273 Millimeter and submillimeter observations of 3C 273

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...273...58c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 273, Oct. 1, 1983, p. 58-63. Research supported by the Science and Engineer

Astronomy and Astrophysics

Astronomy

48

Astronomical Spectroscopy, Infrared Astronomy, Millimeter Waves, Quasars, Submillimeter Waves, Continuous Spectra, Radio Astronomy, Relativistic Particles, Synchrotron Radiation

Scientific paper

The first detection of 3C 273 (1226 + 023) at wavelengths of 107, 240, and 400 microns together with contemporary measurements at 800 microns, 1.1, 1.9, 3.3, and 8.9 mm, is reported. These observations show that the continuum spectrum of 3C 273 can be extrapolated smoothly from the submillimeter to the infrared with a constant spectral index. There is no evidence of thermal emission from dust. It is shown that the spectrum is consistent with optically thin synchrotron emission from a relativistic beam at a small angle to the line of sight.

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