Photometry of Cygnus A at 800 and 1100 microns

Details Photometry of Cygnus A at 800 and 1100 microns Photometry of Cygnus A at 800 and 1100 microns

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.240..817e&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 240, Oct. 15, 1989, p. 817-822.

Astronomy and Astrophysics

Astronomy

20

Cygnus Constellation, Infrared Astronomy Satellite, Infrared Photometry, Radio Galaxies, Stellar Spectra, Centimeter Waves, Far Infrared Radiation, Radio Sources (Astronomy), Relativistic Electron Beams

Scientific paper

The fluxes of the hotspots and core of the arche-typical radio galaxy Cygnus A were measured at 800 and 1100 microns. The values for the hotspots lie on the extrapolation of the spectrum from cm-wavelengths, and are consistent with a model in which the relativistic electrons are continuously injected into a reservoir from which they escape to fill the lobes. For the central source, the data are also consistent with an extrapolation from longer wavelengths and therefore suggest that the far-infrared emission discovered by IRAS from the nucleus is from heated dust.

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