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Optical and near-infrared observations of BL Lacertae objects and active quasarsUBVRI and JHK photometric and polarimetric observations, obtained using the 1.5-m UCSD/UM telescope at Mount Lemmon, AZ during 1982-1984, are reported for a sample of 10 BL Lac objects, eight optically violent variable quasars, and the low-polarization quasar 3C 273. The data are presented in extensive tables and graphs and analyzed in detail. Most of the objects are found to have undergone large polarization variations on time scales ranging from 1 d to several months; five objects had fractional linear polarization P greater than 30 percent at least once during the period of observation, but four never had P greater than 10 percent. Of four objects which exhibited a preferred polarization position angle (theta), three had theta within 20 deg of the jet position angle determined by VLBI.
Document ID
19870056050
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Smith, Paul S.
(New Mexico, University Albuquerque; Steward Observatory, Tucson, AZ, United States)
Balonek, Thomas J.
(Colgate University Hamilton, NY, United States)
Elston, Richard
(Steward Observatory Tucson, AZ, United States)
Heckert, Paul A.
(California State University San Bernardino, United States)
Date Acquired
August 13, 2013
Publication Date
June 1, 1987
Publication Information
Publication: Astrophysical Journal Supplement Series
Volume: 64
ISSN: 0067-0049
Subject Category
Astrophysics
Accession Number
87A43324
Funding Number(s)
CONTRACT_GRANT: NAS5-29293
Distribution Limits
Public
Copyright
Other

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