LHAASO detection of renewed TeV activity from the radio galaxy IC 310
ATel #16540; Guangman Xiang (SHAO, IHEP), Min Zha (IHEP), Zhiguo Yao (IHEP), Jianeng Zhou (SHAO) and Yi Xing (SHAO) report on behalf of the LHAASO Collaboration
on 20 Mar 2024; 03:23 UT
Credential Certification: Jianeng Zhou (zjn@shao.ac.cn)
Subjects: Gamma Ray, TeV, VHE, AGN, Transient
Utilizing the LHAASO-WCDA real-time alert system, we report the detection of renewed TeV gamma-ray activity from the galaxy IC 310. LHAASO-WCDA observed a gamma-ray flux enhancement from IC 310 initiated at MJD 60388.20. By MJD 60388.54, the accumulated significance reached 7.65 standard deviations, with a flux of approximately 1.3 Crab Unit above 1 TeV.
The TeV gamma-ray activity had been alerted by LHAASO (ATel #16513) in March 6, 2024, VERITAS performed follow-up observations between March 10-13, 2024 (ATel #16535). We strongly encourage multi-band observation.
LHAASO is a multi-purpose Extensive Air Shower (EAS) array designed to detect air showers induced by gamma-rays and cosmic rays across a wide energy range, spanning from sub-TeV to beyond 1 PeV.
