Rapid radio polarization variability in the quasar 0917 + 624

Details Rapid radio polarization variability in the quasar 0917 + 624 Rapid radio polarization variability in the quasar 0917 + 624

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...226l...1q&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 226, no. 1, Dec. 1989, p. L1-L4.

Astronomy and Astrophysics

Astronomy

70

Polarization (Waves), Quasars, Radiant Flux Density, Radio Jets (Astronomy), Radio Astronomy, Variability

Scientific paper

This paper reports measurements, at the wavelengths 6 cm and 11 cm, of the total flux density and polarization of quasar 0917 + 642, made with the 100-m radio telescope of the Max-Planck Institut fur Radioastronomie. At both wavelengths, the total flux density (S) of the quasar showed variations with an amplitude of about 25 percent and a typical time scale of about 1 day. The polarized flux density (P) showed variations with an amplitude of a factor about 3, inversely correlated with the variability of S. A model is proposed, which gives an explanation of the observed variability in terms of shocks propagating in a magnetized jet.

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