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

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

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ap%26ss.278..139d&link_type=abstract

Astrophysics and Space Science, v. 278, Issue 1/2, p. 139-142 (2001).

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

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.

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