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Intraday Variability Feature and Milliarcsecond-Scale Structure in PKS 1622-297
Kiyoaki Wajima,Hayley E. Bignall,Hideyuki Kobayashi,Hisashi Hirabayashi,Kenta Fujisawa,Masato Tsuboi,Philip G. Edwards,Yasuhiro Murata 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.4
PKS 1622.297 is the most luminous gamma-ray emitting active galactic nucleus (AGN) ever detected and shows a gamma-ray intraday variability (IDV). We made a high-resolution space very long baseline interferometry (VLBI) observation of the source almost three years after the gammaray IDV. The source shows a compact core-jet structure, and all jet components have an apparent superluminal motion up to 12 h.1c. As an alternative probe of the sub-parsec scale structure, we also present the results from multi-epoch Australia Telescope Compact Array (ATCA) total flux monitoring, which indicate the presence of IDV. We examine the inner structure of the gamma-ray emitting AGN in light of these observations.