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arXiv · 1302.6504

Probing Jet Conditions with Multi-frequency, Centimeter-band Linear Polarization: PKS 0420-01

Margo F. Aller·Philip A. Hughes·Hugh D. Aller·Talvikki Hovatta
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Abstract

We have used single-dish centimeter-band, multi-frequency linear polarization and total flux density monitoring observations obtained by UMRAO at 14.5, 8, and 4.8 GHz during gamma-ray flaring to constrain propagating shock-in-jet models; this procedure allows us to probe jet conditions at or near the presumed parsec-scale gamma-ray emission site within the relativistic jet. Results are presented for the blazar 0420-014 during the gamma-ray flare detected by the LAT which peaked in late January 2010. Our work identifies the passage of three forward-moving transverse shocks during the radio-band flaring, a shock Lorentz factor of 12, and an observer's viewing angle of 2 degrees and sets limits on the energy distribution of the radiating particles.

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Margo F. Aller, Philip A. Hughes, Hugh D. Aller, Talvikki Hovatta. 2013-02-26. Probing Jet Conditions with Multi-frequency, Centimeter-band Linear Polarization: PKS 0420-01. https://arxiv.org/abs/1302.6504

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