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arXiv · 1311.3375

Monitoring of multi-frequency polarization of gamma-ray bright AGNs

Sang-Sung Lee·Myounghee Han·Sincheol Kang·Jungmin Seen·Do-Young Byun·Jun-Hyun Baek·Soon-Wook Kim·Jeong-Sook Kim
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Abstract

We started two observing programs with the Korean VLBI Network (KVN) monitoring changes in the flux density and polarization of relativistic jets in gamma-ray bright AGNs simultaneously at 22, 43, 86, 129 GHz. One is a single-dish weekly-observing program in dual polarization with KVN 21-m diameter radio telescopes beginning in 2011 May. The other is a VLBI monthly-observing program with the three-element VLBI network at an angular resolution range of 1.0--9.2 mas beginning in 2012 December. The monitoring observations aim to study correlation of variability in gamma-ray with that in radio flux density and polarization of relativistic jets when they flare up. These observations enable us to study the origin of the gamma-ray flares of AGNs.

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Sang-Sung Lee, Myounghee Han, Sincheol Kang, Jungmin Seen, Do-Young Byun, Jun-Hyun Baek, Soon-Wook Kim, Jeong-Sook Kim. 2013-11-14. Monitoring of multi-frequency polarization of gamma-ray bright AGNs. https://doi.org/10.1051/epjconf%2F20136107007

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