Cosmological halos as a new test for intergalactic gas

Details Cosmological halos as a new test for intergalactic gas Cosmological halos as a new test for intergalactic gas

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pazh...16..893s&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 16, Oct. 1990, p. 893-900. In Russian. In Russian. In Russian.

Mathematics

Logic

Electron Density (Concentration), Halos, Intergalactic Media, Quasars, Electron Gas, Red Shift, Thomson Scattering

Scientific paper

A test for the electron density of a general intergalactic gas is proposed, based on observations of the local Thomson scattering of radiation (light echos or cosmological halos) around quasars with high redshifts. The estimates made show that observations of cosmic halos around radio-loud quasars by polarized flux density synthesis with tangential polarization make it possible to measure the mean density parameter of the intergalactic gas with an instrumental accuracy of approximately 0.01.

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