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Flat Spectrum Radio Quasars through the MAGIC glasses

Becerra González, J. and Lindfors, E. and Prandini, E. and Satalecka, K. and Sitarek, J. and De Caneva, G. and Fallah Ramazani, V. and Tavecchio, F. and McEnery, J. and Hovatta, T. and Tornikoski, M. and Lähteenmäki, A. and Jorstad, S. and Marscher, A. (2015) Flat Spectrum Radio Quasars through the MAGIC glasses. In: 34th International Cosmic Ray Conference (ICRC2015). Proceedings of Science. No.236. SISSA , Trieste, Italy, Art. No. 876. https://resolver.caltech.edu/CaltechAUTHORS:20180828-122924943

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Abstract

The detection of Flat Spectrum Radio Quasars (FSRQs) in the Very High Energy (VHE, E > 100 GeV) range is challenging, mainly because of their steep spectra in this energy band. Up to now, only five FSRQs are known to be VHE γ-ray emitters, all of them have been detected by the MAGIC telescopes, that discovered four of them in the VHE band. The observations in the VHE band are crucial to understand their emission, specially to constrain the location of the emitting region within the jet due to the absorption from their broad line region (BLR). Typically, FSRQs are detected during high flux states, enhancing the probability of detection with the current instruments sensitivities. However, the last observation campaigns performed with the MAGIC telescopes show emission during moderate states, thus challenging our understanding of the emission mechanisms in FSRQs. In this contribution, we give an overview and present the most recent results of the three FSRQs 3C279, PKS1222+21 and PKS1510-089 in a multi-wavelength context with special focus on MAGIC and Fermi-LAT simultaneous observations.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.22323/1.236.0876DOIArticle
ORCID:
AuthorORCID
Hovatta, T.0000-0002-2024-8199
Tornikoski, M.0000-0003-1249-6026
Additional Information:Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-ShareAlike. We would like to thank the Instituto de Astrofísica de Canarias for the excellent working conditions at the Observatorio del Roque de los Muchachos in La Palma. The financial support of the German BMBF and MPG, the Italian INFN and INAF, the Swiss National Fund SNF, the ERDF under the Spanish MINECO (FPA2012-39502), and the Japanese JSPS and MEXT is gratefully acknowledged. This work was also supported by the Centro de Excelencia Severo Ochoa SEV-2012-0234, CPAN CSD2007-00042, and MultiDark CSD2009-00064 projects of the Spanish Consolider-Ingenio 2010 programme, by grant 268740 of the Academy of Finland, by the Croatian Science Foundation (HrZZ) Project 09/176 and the University of Rijeka Project 13.12.1.3.02, by the DFG Collaborative Research Centers SFB823/C4 and SFB876/C3, and by the Polish MNiSzW grant 745/N-HESS-MAGIC/2010/0. The Fermi-LAT Collaboration acknowledges support for LAT development, operation and data analysis from NASA and DOE (United States), CEA/Irfu and IN2P3/CNRS (France), ASI and INFN (Italy), MEXT, KEK, and JAXA (Japan), and the K.A. Wallenberg Foundation, the Swedish Research Council and the National Space Board (Sweden). Science analysis support in the operations phase from INAF (Italy) and CNES (France) is also gratefully acknowledged.
Funders:
Funding AgencyGrant Number
Bundesministerium für Bildung und Forschung (BMBF)UNSPECIFIED
Max-Planck-GesellschaftUNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN)UNSPECIFIED
Istituto Nazionale di Astrofisica (INAF)UNSPECIFIED
Swiss National Science Foundation (SNSF)UNSPECIFIED
European Regional Development FundUNSPECIFIED
Ministerio de Economía y Competitividad (MINECO)FPA2012-39502
Japan Society for the Promotion of Science (JSPS)UNSPECIFIED
Ministry of Education, Culture, Sports, Science and Technology (MEXT)UNSPECIFIED
Centro de Excelencia Severo OchoaSEV-2012-0234
Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN)CSD2007-00042
Academy of Finland268740
Croatian Science Foundation (HrZZ)09/176
University of Rijeka13.12.1.3.02
Deutsche Forschungsgemeinschaft (DFG)SFB823/C4
Deutsche Forschungsgemeinschaft (DFG)SFB876/C3
Ministerstwo Nauki i Szkolnictwa Wyższego (MNiSzW)745/N-HESS-MAGIC/2010/0
NASAUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Commissariat à l’Energie Atomique (CEA)UNSPECIFIED
Institut de recherche sur les lois fondamentales de l'Univers (Irfu)UNSPECIFIED
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)UNSPECIFIED
Centre National de la Recherche Scientifique (CNRS)UNSPECIFIED
Agenzia Spaziale Italiana (ASI)UNSPECIFIED
Kō Enerugī Kasokuki Kenkyū Kikō (KEK)UNSPECIFIED
Japan Aerospace Exploration Agency (JAXA)UNSPECIFIED
Knut and Alice Wallenberg FoundationUNSPECIFIED
Swedish Research CouncilUNSPECIFIED
Swedish National Space Board (SNSB)UNSPECIFIED
Centre National d'Études Spatiales (CNES)UNSPECIFIED
Ministerio de Economía y Competitividad (MINECO)CSD2009-00064
Series Name:Proceedings of Science
Issue or Number:236
Record Number:CaltechAUTHORS:20180828-122924943
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180828-122924943
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89233
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:29 Aug 2018 22:57
Last Modified:03 Oct 2019 20:14

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