Optical manifestations of superluminal expansion of components belonging to the millisecond radio structure in the quasar 3C 345

Details Optical manifestations of superluminal expansion of components belonging to the millisecond radio structure in the quasar 3C 345 Optical manifestations of superluminal expansion of components belonging to the millisecond radio structure in the quasar 3C 345

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985afz....23..459b&link_type=abstract

(Astrofizika, vol. 23, Nov.-Dec. 1985, p. 459-471) Astrophysics (ISSN 0571-7132), vol. 23, no. 3, May 1986, p. 639-646. Translat

Astronomy and Astrophysics

Astronomy

16

Extragalactic Radio Sources, Quasars, Radio Bursts, Radio Jets (Astronomy), Relativistic Velocity, Light Curve, Radiant Flux Density, Variability

Scientific paper

All the 1971 - 1982 data (5 - 15 GHz) on superluminal motions in the VLBI structure of 3C 345 are compared with its optical variability in the B band. The extrapolated moments of ejection of the compact jet components well coincide with the initial phases of the "slow" optical flares (with characteristic times of 1 - 2 ys) observed since 1966. The beginning of the last optical s-flare with maximum brightness in 1982 - 1983 is consistent with the time of ejection of the newly detected jet component. The s-flares correlate with the total flux density variations at 10.7 GHz with time delays of about 400 - 1000 days. The authors conclude that part of the optical variability of extragalactic objects must be connected with jet events in their nuclei.

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