A complete sample of double-lobed radio quasars for VLBI tests of source models - Definition and statistics

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Astronomical Journal; (USA)

DOI:https://doi.org/10.1086/115208· OSTI ID:5126381

Hough, D H; Readhead, A C.S. ^[1]

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1. California Institute of Technology, Pasadena (USA)

A complete, flux-density-limited sample of double-lobed radio quasars is defined, with nuclei bright enough to be mapped with the Mark III VLBI system. It is shown that the statistics of linear size, nuclear strength, and curvature are consistent with the assumption of random source orientations and simple relativistic beaming in the nuclei. However, these statistics are also consistent with the effects of interaction between the beams and the surrounding medium. The distribution of jet velocities in the nuclei, as measured with VLBI, will provide a powerful test of physical theories of extragalactic radio sources. 131 refs.

• OSTI ID: 5126381
• Journal Information: Astronomical Journal; (USA), Journal Name: Astronomical Journal; (USA) Vol. 98; ISSN 0004-6256; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CATALOGS
COSMIC RADIO SOURCES
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
ENERGY RANGE
GALAXY NUCLEI
INTERFEROMETRY
MATHEMATICAL MODELS
MORPHOLOGY
PLASMA JETS
QUASARS
RADIATIONS
RADIOWAVE RADIATION
RED SHIFT
RELATIVISTIC RANGE
SAMPLING
SIZE
TESTING
VELOCITY