Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.238p..41f&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 238, June 1, 1989, p. 41P-44P. Research supported by th
Astronomy and Astrophysics
Astronomy
125
Cosmic Gases, Electron Scattering, Quasars, Radio Galaxies, Red Shift, Continuums, Galactic Nuclei, Line Of Sight, Luminosity
Scientific paper
It is proposed here that the alignment of the optical continuum and radio axes in high-redshift radio galaxies observed by Djorgovski et al. (1987) and Chambers et al. (1988) is due to the optical flux being the electron-scattered radiation from a central quasar which is beamed out of our line-of-sight. The electrons are in the hot intracluster (or group) gas surrounding the quasar host galaxy. The cooling time of the gas is shorter than a Hubble time if sufficient optical depth is to be obtained. The model predicts that the continuum is strongly polarized and has the spectrum of a quasar nucleus, broadened by about 10 percent. Electron-scattered continuum flux from quasars can be used as a probe of the surrounding hot gas.
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