Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (112) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (64)
· NED Objects (65)
· Reads History
·
· Translate This Page
Title:
Optical polarization of a complete sample of radio sources
Authors:
Impey, C. D.; Lawrence, C. R.; Tapia, S.
Affiliation:
AA(Steward Observatory, Tucson, AZ), AB(Owens Valley Radio Observatory; Palomar Observatory, Pasadena, CA), AC(Steward Observatory, Tucson, AZ; MIT, Lexington, MA)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 375, July 1, 1991, p. 46-68. Research supported by Space Telescope Science Institute. (ApJ Homepage)
Publication Date:
07/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Optical Polarization, Optical Properties, Radiant Flux Density, Radio Sources (Astronomy), Bl Lacertae Objects, Spectral Emission, Stellar Cores, Very Long Base Interferometry
DOI:
10.1086/170168
Bibliographic Code:
1991ApJ...375...46I

Abstract

The radio and optical properties of a complete 5 GHz sample of strong radio sources are studied. High polarization is strongly correlated with the fraction of the total 5 GHz flux density found in a milliarcsec core. The detection rate of radio galaxies containing optical cores with high polarization is consistent with the hypothesis that all radio sources contain optically polarized cores, with strength proportional to the core radio flux density. High optical polarization, optical power-law fraction, line-to-continuum ratio, emission lines of small equivalent widths, and large amplitude flux variability are all strongly correlated with the fraction of the 5 GHz radio flux density that is unresolved on VLBI scales. The distributions of these properties are well matched by a model where radio and optical radiation have the same beaming geometry and with Doppler boosting of a factor of 10-100 in the optical. A striking alignment of the position angle of the VLBI structure axis and the position angle of optical polarization in highly polarized sources is confirmed.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences



More Article Retrieval Options

HELP for Article Retrieval


Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints