Search
Now showing items 1-10 of 23
Veritas observations of the bl lac object txs 0506+056
(American Astronomical Society, 2018-07-12)
On 2017 September 22, the IceCube Neutrino Observatory reported the detection of the high-energy neutrino event IC 170922A, of potential astrophysical origin. It was soon determined that the neutrino direction was consistent ...
A search for spectral hysteresis and energy-dependent time lags from x-ray and tev gamma-ray observations of mrk 421
(American Astronomical Society, 2016-12-22)
Blazars are variable emitters across all wavelengths over a wide range of timescales, from months down to minutes. It is therefore essential to observe blazars simultaneously at different wavelengths, especially in the ...
Discovery of very-high-energy emission from rgb j2243+203 and derivation of its redshift upper limit
(American Astronomical Society, 2017-11-10)
Very-high-energy (VHE; > 100 GeV) gamma-ray emission from the blazar RGB J2243+203 was discovered with the VERITAS Cherenkov telescope array, during the period between 2014 December 21 and 24. The VERITAS energy ...
Veritas and multiwavelength observations of the bl lacertae object 1es 1741+196
(Oxford University Press (OUP), 2016-04-01)
We present results from multiwavelength observations of the BL Lacertae object 1ES 1741 + 196, including results in the very high energy gamma-ray regime using the Very Energetic Radiation Imaging Telescope Array System ...
Gamma-rays from the quasar pks 1441+25: story of an escape
(IOP Publishing, 2015-12-15)
Outbursts from gamma-ray quasars provide insights on the relativistic jets of active galactic nuclei and constraints on the diffuse radiation fields that fill the universe. The detection of significant emission above 100 ...
Observation of markarian 421 in tev gamma rays over a 14-year time span
(Elsevier BV, 2014-02-01)
Veritas search for vhe gamma-ray emission from dwarf spheroidal galaxies
(IOP Publishing, 2010-08-18)
Indirect dark matter searches with ground-based gamma-ray observatories provide an alternative for identifying the particle nature of dark matter that is complementary to that of direct search or accelerator production ...
Gamma-ray observations of tycho’s supernova remnant with veritas andfermi
(American Astronomical Society, 2017-02-06)
High-energy gamma-ray emission from supernova remnants (SNRs) has provided a unique perspective for studies of Galactic cosmic-ray acceleration. Tycho's SNR is a particularly good target because it is a young, type Ia SNR ...
Gamma-ray observations under bright moonlight with veritas
(Elsevier BV, 2017-05-01)
Tev gamma-ray observations of the galactic center ridge by veritas
(American Astronomical Society, 2016-04-22)
The Galactic Center ridge has been observed extensively in the past by both GeV and TeV gamma-ray instruments revealing a wealth of structure, including a diffuse component and the point sources G0.9+0.1 (a composite ...