Optical variability of the quasar 3C 345

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

6

Light Curve, Luminosity, Quasars, Seyfert Galaxies, Variability

Scientific paper

A composite light curve for the quasar 3C 345 is constructed for the complete time during which it has been observed optically (B band): 1965-1983. It is found that there has been a systematic increase in the mean luminosity of 3C 345 during the last 15 years at a rate of about 0.05 m/yr. It is suggested that there is connection between the optical outbursts of 3C 345 with duration 1-2 yr and the appearance of compact radio components moving with superluminal velocities in its millisecond structure. Similar relationships can be traced in the N galaxy 3C 120. The appearance of a new radio component in the millisecond radio structure of 3C 345 associated with a 'slow' outburst in 1982 is predicted. The occurrence in 1972-1975 of 'fast' outbursts with duration of about 10 days agrees with a periodicity of 327 days, in agreement with the determination of a period (P = 321 days) for these outbursts obtained by Kinman et al. (1969) from a number of observations during 1965-1967.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Optical variability of the quasar 3C 345 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optical variability of the quasar 3C 345, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical variability of the quasar 3C 345 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1389832

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.