NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-26 T02:41:05 PDT
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For refcode 1997ApJ...491..483G:
Retrieve 43 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
1997ApJ...491..483G Outflow Angles, Bulk Lorentz Factors, and Kinematics of Outflows from the Cores of Active Galactic Nuclei ERICK J. GUERRA AND RUTH A. DALY Department of Physics, Joseph Henry Laboratories, Princeton University, Princeton, NJ 08544 Received 1997 March 4; accepted 1997 July 30 ABSTRACT Outflow angles and bulk Lorentz factors for 43 sources that have proper motions (compiled by Vermeulen and Cohen in 1994) are computed on the basis of Doppler factors and observed apparent motions in the plane of the sky. These estimates of outflow angles and bulk Lorentz factors are discussed along with their agreement with orientation unified models of active galactic nuclei. Intrinsic (i.e., rest frame) brightness temperatures computed by using the inverse Compton and equipartition Doppler factors are discussed along with their relevance to the "inverse Compton catastrophe." Intrinsic luminosity densities and luminosities are presented, and the role of systematic errors is discussed. These studies are carried out using a sample of 100 compact radio sources that was compiled by Ghisellini and coworkers in 1993. Error estimates for previously computed inverse Compton Doppler factors and equipartition Doppler factors are presented for these sources, along with a few updates of these Doppler factor estimates. Subject headings: BL Lacertae objects: general-galaxies: active - galaxies: kinematics and dynamics-quasars: general-radiation mechanisms: nonthermal-relativity
Retrieve 43 NED objects in this reference.
Please click here for ADS abstract

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