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Time-resolved multiwavelength observations of the blazar VER J0521+211 from radio to gamma-ray energies
Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.ORCID iD: 0000-0002-2378-0893
Università di Siena and INFN Pisa, Italy.
Università di Padova and INFN, Italy.
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2015 (English)In: Proceedings of the 34th International Cosmic Ray Conference (ICRC2015), The Hague (The Netherlands), 2015Conference paper, Published paper (Other academic)
Abstract [en]

VER J0521+211 (RGB J0521.8+2112) is one of the brightest and most powerful blazars detected in the TeV gamma-ray regime. It is located at a redshift of z=0.108 and since its discovery in 2009, VER J0521+211 has exhibited an average TeV flux exceeding 0.1 times that of the Crab Nebula, corresponding to an isotropic luminosity of 3×1044 erg s−1. We present data from a comprehensive multiwavelength campaign on this object extending between November 2012 and February 2014, including single-dish radio observations, optical photometry and polarimetry, UV, X-ray, GeV and TeV gamma-ray data (VERITAS, MAGIC). Significant flux variability was observed at all wavelengths, including a long-lasting high state at gamma-ray energies in Fall 2013. Nightly-resolved spectra at X-ray and TeV energies are be presented, and emission mechanisms explaining the observed flux and spectral variability are discussed. 

Place, publisher, year, edition, pages
2015.
Keyword [en]
Astrophysics - High Energy Astrophysical Phenomena
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:lnu:diva-46335Scopus ID: 2-s2.0-84988693166OAI: oai:DiVA.org:lnu-46335DiVA: diva2:911987
Conference
The 34th International Cosmic Ray Conference (ICRC2015),30 July - 6 August, 2015 The Hague, The Netherlands
Available from: 2016-03-15 Created: 2015-09-16 Last updated: 2017-05-09Bibliographically approved

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  • apa
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