A Method for Estimating the Distances of Extragalactic Radio Sources with Jets Using VLBI

Details A Method for Estimating the Distances of Extragalactic Radio Sources with Jets Using VLBI A Method for Estimating the Distances of Extragalactic Radio Sources with Jets Using VLBI

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004arep...48..699k&link_type=abstract

Astronomy Reports, vol. 48, Issue 9, p.699-704

Astronomy and Astrophysics

Astronomy

Scientific paper

A method is proposed for estimating the distances to extragalactic radio sources using spec-troscopic data on the sizes of the broad-line regions of quasars and radio galaxies R BL and VLBI data on the transverse angular sizes of the radio jets emerging from their nuclei (θ θ j ). This approach is based on the fact that observational data on the transverse linear sizes of radio jets (l θ j ) associated with the nearest radio sources and theoretical concepts about the formation of radio jets in the central regions of a magnetized accretion disk suggest that (l θ j ) and R BL should be approximately equal.

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