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Target of Opportunity Observations of Blazars with HESS
Univ Paris Diderot, France.
North West Univ, South Africa.
Max Planck Inst Kernphys, Germany.
North West Univ, South Africa ; Univ Namibia, Namibia.
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2017 (English)In: HIGH ENERGY GAMMA-RAY ASTRONOMY / [ed] Aharonian, FA Hofmann, W Rieger, FM, American Institute of Physics (AIP), 2017, UNSP 050029Conference paper, Published paper (Refereed)
Abstract [en]

The very high energy (VHE, E > 100 GeV) sky is dominated by blazars, radio-loud active galactic nuclei whose relativistic jet is closely aligned with the line of sight. Blazars are characterized by rapid variability at all wavelengths and thus an important part of the H.E.S.S. blazar program is devoted to target of opportunity (ToO) observations. H.E.S.S. triggers blazar ToOs on the basis of publicly available blazar observations at longer wavelengths (optical, X-rays, and gamma-rays), from private optical observations with the ATOM telescope, and from private communications by gamma-ray partners in the context of MoUs. In 2015, about 70 hours of H.E.S.S. data were taken in the form of blazar ToOs, which represents 15% of all extragalactic observations. In this contribution, we present the H.E.S.S. blazar ToO status, and we focus on two major results from the 2015 season: the detection of VHE emission from 3C 279 during the June 2015 flare, and the discovery of PKS 0736+017 as a new VHE quasar.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2017. UNSP 050029
Series
AIP Conference Proceedings, ISSN 0094-243X ; 1792
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Physics, Astroparticle Physics
Identifiers
URN: urn:nbn:se:lnu:diva-64363DOI: 10.1063/1.4968975ISI: 000399207800090ISBN: 978-0-7354-1456-3 (print)OAI: oai:DiVA.org:lnu-64363DiVA: diva2:1098453
Conference
6th International Meeting on High Energy Gamma-Ray Astronomy, JUL 11-15, 2016, Heidelberg, GERMANY
Available from: 2017-05-24 Created: 2017-05-24 Last updated: 2017-05-24Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
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