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

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...

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Bibliographic Details
Published inEPJ Web of conferences Vol. 61; pp. 7007 - np
Main Authors Lee, Sang-Sung, Han, Myounghee, Kang, Sincheol, Seen, Jungmin, Byun, Do-Young, Baek, Jun-Hyun, Kim, Soon-Wook, Kim, Jeong-Sook
Format Journal Article
LanguageEnglish
Published EDP Sciences 01.01.2013
Subjects
Flares
Flux
Flux density
Jets
Monitoring
Networks
Polarization
Radio telescopes
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Summary: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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ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/20136107007