Visual-infrared variations in the broad-line radio galaxy 3C 382

Details Visual-infrared variations in the broad-line radio galaxy 3C 382 Visual-infrared variations in the broad-line radio galaxy 3C 382

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aj.....86...16p&link_type=abstract

Astronomical Journal, vol. 86, Jan. 1981, p. 16-18.

Astronomy and Astrophysics

Astronomy

15

Astronomical Spectroscopy, Infrared Astronomy, Radio Galaxies, Long Term Effects, Spectral Line Width, Visible Spectrum

Scientific paper

A very large-amplitude change in the visual wavelength flux from the radio galaxy 3C 382 occurred on a time scale of about a month during mid-1977. The infrared flux was constant during the onset of the outburst, but showed an increase at 2.28 microns about a year later. Such activity strongly suggests that the observed infrared radiation does not originate in the same component as the visual wavelength radiation. Extension of the spectral-flux distribution to 10 microns shows a flattening between 2.20 and 10 microns. A plausible origin for the infrared flux longward of 2.20 microns is thermal reradiation by hot dust.

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