Rapid Multiwavelength Polarization Variability in the Quasar 0420-014

Details Rapid Multiwavelength Polarization Variability in the Quasar 0420-014 Rapid Multiwavelength Polarization Variability in the Quasar 0420-014

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.0811d&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #08.11; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

In October and November 2005, we executed a ten-day multiwavelength study of a number of blazars using optical, near-infrared, and radio measurements of total and polarized flux density and VLBA polarimetric imaging at 7 mm. This study endeavors to find correlations of polarization and flux variability of the synchrotron emission across multiple parts of the spectrum. The VLBA images provide a map of the complex and variable resolved radio structure of a blazar's relativistic jet which, in concert with polarization variability correlation, can locate the unresolved high-frequency emission. Our results show strong correlations in the multiwavelength polarization characteristics of the blazar 0420-014, demonstrating a clear connection between the optical emission and the 43 GHz core region. We successfully describe the VLBA core and optical polarization in terms of root-N depolarization of intrinsically highly polarized emission from a collection of turbulent magnetic cells. This research was funded in part by the National Science Foundation through grant AST-0406865.

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