2026-06-08T13:39:02Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/439112024-09-05T16:58:46Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Antoranz Canales, Pedro author Barrio Uña, Juan Abel author Contreras González, José Luis author Fonseca González, María Victoria author López Moya, Marcos author Miranda Pantoja, José Miguel author Nieto Castaño, Daniel 2023-06-20T03:34:18Z 2023-06-20T03:34:18Z 2010-11-10 2041-8205 10.1088/2041-8205/723/2/L207 https://hdl.handle.net/20.500.14352/43911 http://dx.doi.org/10.1088/2041-8205/723/2/L207 http://iopscience.iop.orghttp://arxiv.org/abs/1009.2155 We report on the detection with the MAGIC telescopes of very high energy (VHE) gamma-rays from IC 310, a head-tail radio galaxy in the Perseus galaxy cluster, observed during the interval 2008 November to 2010 February. The Fermi satellite has also detected this galaxy. The source is detected by MAGIC at a high statistical significance of 7.6 sigma in 20.6 hr of stereo data. The observed spectral energy distribution is flat with a differential spectral index of -2.00 +/- 0.14. The mean flux above 300 GeV, between 2009 October and 2010 February, (3.1 +/- 0.5) x 10(-12) cm(-2) s(-1), corresponds to (2.5 +/- 0.4)% of Crab Nebula units. Only an upper limit, of 1.9% of Crab Nebula units above 300 GeV, was obtained with the 2008 data. This, together with strong hints (>3 sigma) of flares in the middle of 2009 October and November, implies that the emission is variable. The MAGIC results favor a scenario with the VHE emission originating from the inner jet close to the central engine. More complicated models than a simple one-zone synchrotron self-Compton (SSC) scenario, e. g., multi-zone SSC, external Compton, or hadronic, may be required to explain the very flat spectrum and its extension over more than three orders of magnitude in energy. eng Detection of very high energy gamma-ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes journal article URL https://docta.ucm.es/bitstreams/68718cf2-6cc1-44e4-b2a8-77b49bd6a9c8/download File MD5 5ca91dc5b3c1e9df84366d9ec703575f 548979 application/pdf MirandaJM28libre.pdf