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The Microarcsecond Quasar J1819+3845: Polarization Observations and Detailed Lightcurve Analysis

Published online by Cambridge University Press:  12 April 2016

A.G. de Bruyn  and
J. Dennett-Thorpe
A.G. de Bruyn
Affiliation:
Astron, Dwingeloo And Kapteyn Institute, Groningen
J. Dennett-Thorpe
Affiliation:
Astron, Dwingeloo And Kapteyn Institute, Groningen

Abstract

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The quasar J1819+3845 shows exceedingly rapid variations in both total intensity and linear polarization. These are attributed to interstellar scintillation. The source contains at least two structural components each of which shows variable polarization behaviour. The polarization variations are generally, but perhaps not always, coherent over the 80 MHz band setting. The 6 cm lightcurves in the first few months of 2000 hint at a time-asymmetric behaviour as could be expected from an asymmetric source structure.

Type
Chapter Three Intra-Day Variability, Gravitational Lensing and Polarization
Information
International Astronomical Union Colloquium , Volume 182: Sources and Scintillations: Refraction and Scattering in Radio Astronomy , 2001 , pp. 139 - 142
Copyright
Copyright © Kluwer 2001

References

Dennett-Thorpe, J. and de Bruyn, A.G.: 2000, The discovery of a microarcsecond quasar: Jl819+3845, Astrophys. J. Lett. 529, 65–68.CrossRefGoogle Scholar
Rickett, B.J., Quirrenbach, A., Wegner, R., Krichbaum, T. and Witzel, A.: 1995, Interstellar scintillation of the Radio Source 0917+624, Astron. Astrophys. 293, 479–192.Google Scholar
Salpeter, E.E.: 1967, Interstellar scintillation. I. Theory, Astrophys. J. 147, 433.Google Scholar