Sub-parsec structure of binary supermassive black holes in active galactic nuclei

Details Sub-parsec structure of binary supermassive black holes in active galactic nuclei Sub-parsec structure of binary supermassive black holes in active galactic nuclei

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010arep...54...28v&link_type=abstract

Astronomy Reports, Volume 54, Issue 1, pp.28-37

Astronomy and Astrophysics

Astronomy

Scientific paper

Long-term, multi-frequency monitoring of the radio fluxes of the four BL Lac objects 3C 120, OJ 287, 1308+326, and BL Lac is considered. Harmonic components of the flux variability on scales from one year to decades are determined. The observational data used were obtained at the Radio Astronomy Laboratory of the Crimean Astrophysical Observatory (Ukraine) and the University of Michigan Radio Astronomy Observatory (USA). These data are used to construct kinematic models for active galactic nuclei using values for the orbital and precessional periods of binary systems consisting of supermassive black holes. The derived speeds of the companions in their orbits lie in the narrow range 3000-4000 km/s. The orbital radii for the binary supermassive black holes also lie in a narrow range, 1017-1018 cm, providing evidence that observed prominent examples of active galactic nuclei are fairly close binary systems. The parameters of the mediumin which the components of the binary systems are moving are estimated, as well as the rates at which the systems are losing orbital angular momentum and their lifetimes to coalescence.

Affiliated with

Also associated with

No associations

Rating

Sub-parsec structure of binary supermassive black holes in active galactic nuclei 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 Sub-parsec structure of binary supermassive black holes in active galactic nuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sub-parsec structure of binary supermassive black holes in active galactic nuclei will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1888963