Results from VERITAS observations on the giant flare from Mrk 421 in February 2010

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Abstract

We report on observations of the blazar Mrk 421 with the VERITAS experiment during the month of February 2010 taken in conjunction with a Fermi-LAT-organized multi-wavelength campaign. On February 17, 2010 an unusually bright flare was measured in TeV γ-rays reaching a level of ∼8 Crab with variability timescales as fast as a few minutes. A total of ∼15 hours of VERITAS data were taken over the month of February 2010 with the flare comprising ∼5 of those hours. We show the TeV spectra for several epochs including the flare and discuss results on X-ray/GeV correlation studies.

Original languageEnglish (US)
Title of host publicationHigh Energy Gamma-Ray Astronomy - 5th International Meeting on High Energy Gamma-Ray Astronomy
Pages514-517
Number of pages4
Volume1505
DOIs
StatePublished - Dec 1 2012
Event5th International Meeting on High Energy Gamma-Ray Astronomy - Heidelberg, Germany
Duration: Jul 9 2012Jul 13 2012

Other

Other5th International Meeting on High Energy Gamma-Ray Astronomy
CountryGermany
CityHeidelberg
Period7/9/127/13/12

Keywords

  • BL Lacertae objects: individual (Mrk 421)
  • Gamma rays: observations (VERITAS

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