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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 ...
A search for brief optical flashes associated with the seti target kic 8462852
(American Astronomical Society, 2016-02-18)
The F-type star KIC. 8462852 has recently been identified as an exceptional target for search for extraterrestrial intelligence (SETI) observations. We describe an analysis methodology for optical SETI, which we have used ...
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 ...
Discovery of very high energy gamma rays from 1es 1440+122
(Oxford University Press (OUP), 2016-06-08)
The BL Lacertae object 1ES 1440+ 122 was observed in the energy range from 85 GeV to 30 TeV by the VERITAS array of imaging atmospheric Cherenkov telescopes. The observations, taken between 2008 May and 2010 June and ...
Very high energy observations of the binaries v 404 cyg and 4u 0115+634 during giant x-ray outbursts
(American Astronomical Society, 2016-10-31)
Transient X-ray binaries produce major outbursts in which the X-ray flux can increase over the quiescent level by factors as large as 10(7). The low-mass X-ray binary V 404 Cyg and the high-mass system 4U 0115+634 underwent ...
Multiwavelength study of quiescent states of mrk 421 with unprecedented hard x-ray coverage provided bynustarin 2013
(American Astronomical Society, 2016-03-09)
We present coordinated multiwavelength observations of the bright, nearby BL Lacertae object Mrk 421 taken in 2013 January-March, involving GASP-WEBT, Swift, NuSTAR, Fermi-LAT, MAGIC, VERITAS, and other collaborations and ...
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 ...
Upper limits from five years of blazar observations with the veritas cherenkov telescopes
(American Astronomical Society, 2016-05-18)
Between the beginning of its full-scale scientific operations in 2007 and 2012, the VERITAS Cherenkov telescope array observed more than 130 blazars; of these, 26 were detected as very-high-energy (VHE; E > 100 GeV) ...
Exceptionally bright tev flares from the binary ls i +61° 303
(American Astronomical Society, 2016-01-19)
The TeV binary system LS I +61 degrees 303 is known for its regular, non-thermal emission pattern that traces the orbital period of the compact object in its 26.5 day orbit around its B0 Ve star companion. The system ...
A search for very high energy gamma rays from the missing link binary pulsar j1023+0038 with veritas
(American Astronomical Society, 2016-11-08)
The binary millisecond radio pulsar PSR J1023+0038 exhibits many characteristics similar to the gamma-ray binary system PSR B1259-63/LS 2883, making it an ideal candidate for the study of high-energy nonthermal emission. ...