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Veritas observations of day-scale flaring of m 87 in 2010 april
(IOP Publishing, 2012-02-01)
VERITAS has been monitoring the very-high-energy (VHE; > 100 GeV) gamma-ray activity of the radio galaxy M87 since 2007. During 2008, flaring activity on a timescale of a few days was observed with a peak flux of ...
Constraints on very high energy emission from grb 130427a
(IOP Publishing, 2014-10-10)
Prompt emission from the very fluent and nearby (z = 0.34) gamma-ray burst GRB130427A was detected by several orbiting telescopes and by ground-based, wide-field-of-view optical transient monitors. Apart from the intensity ...
Observations of the unidentified gamma-ray source tev j2032+4130 by veritas
(IOP Publishing, 2014-02-07)
TeV J2032+4130 was the first unidentified source discovered at very high energies (VHEs; E > 100 GeV), with no obvious counterpart in any other wavelength. It is also the first extended source to be observed in VHE ...
Very-high-energy γ-ray observations of the blazar 1es 2344+514 with veritas
(Oxford University Press (OUP), 2017-07-17)
We present very-high-energy gamma-ray observations of the BL Lac object 1ES 2344+514 taken by the Very Energetic Radiation Imaging Telescope Array System between 2007 and 2015. 1ES 2344+514 is detected with a statistical ...
Veritas 2008-2009 monitoring of the variable gamma-ray source m 87
(IOP Publishing, 2010-05-21)
M 87 is a nearby radio galaxy that is detected at energies ranging from radio to very high energy (VHE) gamma rays. Its proximity and its jet, misaligned from our line of sight, enable detailed morphological studies and ...
Discovery of very high energy γ-ray emission from the snr g54.1+0.3
(IOP Publishing, 2010-07-22)
We report the discovery of very high energy (VHE) gamma-ray emission from the direction of the SNR G54.1+ 0.3 using the VERITAS ground-based gamma-ray observatory. The TeV signal has an overall significance of 6.8s and ...
Discovery of variability in the very high energy γ-ray emission of 1es 1218+304 with veritas
(IOP Publishing, 2010-01-14)
We present results from an intensive VERITAS monitoring campaign of the high-frequency peaked BL Lac object 1ES 1218+304 in 2008/2009. Although 1ES 1218+304 was detected previously by MAGIC and VERITAS at a persistent level ...
The 2009 multiwavelength campaign on mrk 421: variability and correlation studies
(EDP Sciences, 2015-04-01)
Aims. We perform an extensive characterization of the broadband emission of Mrk 421, as well as its temporal evolution, during the non-flaring (low) state. The high brightness and nearby location (z = 0.031) of Mrk 421 ...
Veritas observations of the bl lac object pg 1553+113
(IOP Publishing, 2015-01-09)
We present results from VERITAS observations of the BL Lac object PG 1553+113 spanning the years 2010, 2011, and 2012. The time-averaged spectrum, measured between 160 and 560 GeV, is well described by a power law with a ...
Multiwavelength observations of the agn 1es 0414+009 with veritas,fermi-lat,swift-xrt, and mdm
(IOP Publishing, 2012-08-02)
We present observations of the BL Lac object 1ES 0414+009 in the >200 GeV gamma-ray band by the VERITAS array of Cherenkov telescopes. 1ES 0414+009 was observed by VERITAS between 2008 January and 2011 February, ...