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Milliarcsecond Polarization Properties of Several BL Lacertae Objects

Published online by Cambridge University Press:  03 August 2017

D. C. Gabuzda ,
D. H. Roberts ,
J. F. C. Wardle  and
L. F. Brown
D. C. Gabuzda
Affiliation:
Department of Physics, Brandeis University, Waltham, MA 02254 USA
D. H. Roberts
Affiliation:
Department of Physics, Brandeis University, Waltham, MA 02254 USA
J. F. C. Wardle
Affiliation:
Department of Physics, Brandeis University, Waltham, MA 02254 USA
L. F. Brown
Affiliation:
Department of Physics, Brandeis University, Waltham, MA 02254 USA

Abstract

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We discuss the λ6 cm total intensity and polarization structures of a number of BL Lacertae objects at milliarcsecond resolution. 0235+164 was unresolved and weakly polarized at each of two epochs a year apart; each of the other objects displays structure in polarized flux. 0735+178 and 1749+096 can be adequately modeled by two or three point components—a “core” plus one or two “knots.” The core components were moderately polarized (≃ 5%), while “knots” may be polarized at 8% or more, consistent with these components being optically thin. Preliminary results for BL Lac indicate that the total intensity structure can be modeled well by a set of four gaussian components; the polarization structure is complex, but is dominated by the northernmost knot in the jet.

Type
Extragalactic
Information
Symposium - International Astronomical Union , Volume 129: The Impact of VLBI on Astrophysics and Geophysics , 1988 , pp. 167 - 168
Copyright
Copyright © Reidel 1988 

References

Aller, H. D., Aller, M. F., Latimer, G. E., and Hodge, P. E. 1985, Ap. J. Supp. 59, 513.Google Scholar
Altschuler, D. R., and Wardle, J. F. C. 1976, Mem. R. astr. Soc. 82, 1.Google Scholar
Gabuzda, D. C., Roberts, D. H., and Wardle, J. F. C. 1987, in preparation.Google Scholar
Roberts, D. H., et al. 1984, in VLBI and Compact Radio Sources, ed. Fanti, R., Kellermann, K., and Setti, G. (Dordrecht: Reidel), 35.Google Scholar
Roberts, D. H., and Wardle, J. F. C. 1986, in Quasars, ed. Swarup, G. and Kapahi, V. K., (Dordrecht: Reidel), 141.Google Scholar