The Boston University blazar research group has been monitoring a sample of γ -ray blazars with the Very Long Baseline Array at 43 GHz since the launch of the Fermi Gamma-ray Space Telescope. The sample includes three gamma-ray quasars, 1222+216, 3C279, and PKS1510-089, which have been recently detected at E>0.1 TeV (VHE) with Cherenkov telescopes. The quasar 1222+216 has flared already twice at VHE γ -rays during the Fermi era. We present an analysis of the kinematics of the inner parsec-scale jet of 1222+216 during quiescent states and VHE events and discuss the possible mechanisms for VHE photon production and the location of the VHE emission sites.

Язык оригиналаанглийский
Номер статьи017
ЖурналProceedings of Science
Том2016-January
СостояниеОпубликовано - 2016
Событие4th Annual Conference on High Energy Astrophysics in Southern Africa, HEASA 2016 - Cape Town, Южно-Африканская Республика
Продолжительность: 13 янв 2016 → …

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