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

Authors :
Aller, Margo F.
Hughes, Philip A.
Aller, Hugh D.
Hovatta, Talvikki
Publication Year :
2013

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.<br />Comment: 2012 Fermi Symposium proceedings - eConf C121028

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1302.6504
Document Type :
Working Paper