Multifrequency radio observations of the variable quasars 0133 + 476, 0235 + 164, 1749 + 096, and 2131 - 021

Abstract

view Abstract Citations (17) References (84) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Multifrequency radio observations of the variable quasars 0133+476, 0235+164, 1749+096, and 2131-021. O'Dea, Christopher P. ; Dent, William A. ; Kinzel, Wayne M. ; Balonek, Thomas J. Abstract Observations of the long-term variability of four BL Lacertae type quasars, 0133+476, 0235+164, 1749+096, and 2131-021, at 2.7, 7.9, 15.5, 31.4, and 89.6 GHz are presented. These quasars exhibit large variations in both total flux density and polarization on time scales of less than 3 months and are the four most variable objects in linear polarization at 2.7 GHz in the authors' monitoring program of ≡100 sources. The variations in polarized flux density and position angle in these objects are not clearly correlated with those of the total flux density. Simple one- and two-component models for polarization variability are discussed and rejected, and multiple-component models may be required to explain the complexity of the variations. Publication: The Astronomical Journal Pub Date: December 1986 DOI: 10.1086/114260 Bibcode: 1986AJ.....92.1262O Keywords: Astronomical Spectroscopy; Periodic Variations; Quasars; Radio Frequencies; Radio Sources (Astronomy); Astronomical Models; Polarization Characteristics; Radiant Flux Density; Astrophysics; Quasars:Radio Polarization; Quasars:Variations; Radio Polarization:Quasars full text sources ADS | data products SIMBAD (4) NED (4)