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Evidence for accretion disks in highly polarized quasarsThe results of a search for thermal components in 11 highly polarized quasars (HPQs) using UVBRI polarimetry and photometry are reported. The 2000-2500 A luminosities of the thermal components are calculated and the estimated luminosities of the broad-line region (BLR) are given in the same wavelength for comparison. The observed optical continua are modeled as a combination of polarized synchrotron emission, unpolarized emission from the BLR, and an unpolarized flat spectral component that may be optically thick thermal emission from an accretion disk. Evidence for thermal emission components is found in three HPQs: PKS 0420-014, B2 1156+295, and 3C 454.3, with marginal evidence in another two, PKS 1510-089 and PKS 2345-167.
Document ID
19880044724
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Smith, Paul S.
(Arizona Univ. Tucson, AZ, United States)
Elston, Richard
(Arizona Univ. Tucson, AZ, United States)
Berriman, Graham
(Arizona Univ. Tucson, AZ, United States)
Allen, Richard G.
(Steward Observatory Tucson, AZ, United States)
Balonek, Thomas J.
(Colgate University Hamilton, NY, United States)
Date Acquired
August 13, 2013
Publication Date
March 15, 1988
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters to the Editor
Volume: 326
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
88A31951
Funding Number(s)
CONTRACT_GRANT: NSF AST-84-08740
CONTRACT_GRANT: NAS5-29293
Distribution Limits
Public
Copyright
Other

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