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Galaxies 2016, 4(4), 31; doi:10.3390/galaxies4040031

Broad Band Observations of Gravitationally Lensed Blazar during a Gamma-Ray Outburst

1
Department of Astrophysics, University of Łódź, PL-90236 Lodz, Poland
2
Astrophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
3
Department of Physics, University of Maryland, College Park, MD 20742, USA
4
Department of Astronomy, University of Maryland, College Park, MD 20742, USA
5
Center for Research and Exploration in Space Science and Technology (CRESST), University of Maryland Baltimore County, Baltimore, MD 21250, USA
6
Department of Physics, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia
7
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
8
Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
9
Institute for Cosmic Ray Research, University of Tokyo, Kashiwa-no-ha 5-1-5, Kashiwa-shi, 277-8582 Chiba, Japan
10
Max-Planck-Institut für Physik, D-80805 München, Germany
11
Tuorla Observatory, Astronomy Division, University of Turku, FI-21500 Piikkiö, Finland
12
Department of Atomic, Molecular and Nuclear Physics, Universidad Complutense de Madrid, E-28040 Madrid, Spain
13
INAF National Institute for Astrophysics, I-00136 Rome, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Jose L. Gómez, Alan P. Marscher and Svetlana G. Jorstad
Received: 15 July 2016 / Accepted: 2 September 2016 / Published: 27 September 2016
(This article belongs to the Special Issue Blazars through Sharp Multi-wavelength Eyes)
View Full-Text   |   Download PDF [288 KB, uploaded 27 September 2016]   |  

Abstract

QSO B0218+357 is a gravitationally lensed blazar located at a cosmological redshift of 0.944. In July 2014 a GeV flare was observed by Fermi-LAT, triggering follow-up observations with the MAGIC telescopes at energies above 100 GeV. The MAGIC observations at the expected time of arrival of the trailing component resulted in the first detection of QSO B0218+357 in Very-High-Energy (VHE, >100 GeV) gamma rays. We report here the observed multiwavelength emission during the 2014 flare. View Full-Text
Keywords: gamma rays: galaxies; gravitational lensing: strong; galaxies: jets; radiation mechanisms: non-thermal; galaxies: QSO B0218+357 gamma rays: galaxies; gravitational lensing: strong; galaxies: jets; radiation mechanisms: non-thermal; galaxies: QSO B0218+357
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Sitarek, J.; Becerra González, J.; Buson, S.; Dominis Prester, D.; Manganaro, M.; Mazin, D.; Nilsson, K.; Nievas, M.; Stamerra, A.; Tavecchio, F.; Vovk, I. Broad Band Observations of Gravitationally Lensed Blazar during a Gamma-Ray Outburst. Galaxies 2016, 4, 31.

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