G. H. Gillanders
University of Leeds
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Featured researches published by G. H. Gillanders.
arXiv: High Energy Astrophysical Phenomena | 2011
G. H. Gillanders; M. J. Lang
The VERITAS telescope array has been operating smoothly since 2007, and has detected gamma-ray emission above 100 GeV from 40 astrophysical sources. These include blazars, pulsar wind nebulae, supernova remnants, gamma- ray binary systems, a starburst galaxy, a radio galaxy, the Crab pulsar, and gamma-ray sources whose origin remains unidentified. In 2009, the array was reconfigured, greatly im proving the sensitivity. We summarize the current status of the observatory, describe some of the scientific highlights since 2009, and outline plans for the future.
International Journal of Modern Physics D | 2010
T. C. Weekes; V. A. Acciari; T. Arlen; T. Aune; M. Beilicke; W. Benbow; D. Boltuch; S. M. Bradbury; J. H. Buckley; V. Bugaev; K. L. Byrum; A. Cannon; A. Cesarini; L. Ciupik; Y. C. Chow; P. Cogan; W. Cui; C. Duke; S. J. Fegan; J. P. Finley; G. Finnegan; P. Fortin; L. Fortson; A. Furniss; N. Galante; D. Gall; G. H. Gillanders; S. Godambe; J. Grube; R. Guenette
VERITAS is a ground-based gamma-ray observatory that uses the imaging atmospheric Cherenkov technique and operates in the very-high energy (VHE) region of the gamma-ray spectrum from 100 GeV to 50 TeV. The observatory consists of an array of four 12 m-diameter imaging atmospheric Cherenkov telescopes located in southern Arizona, USA. The four-telescope array has been fully operational since September 2007, and over the last two years, VERITAS has been operating with high reliability and sensitivity. It is currently one of the most sensitive VHE observatories. This paper summarizes the status of VERITAS as of October 2009, and describes the detection of several new VHE gamma-ray sources.
Journal of Physics: Conference Series | 2007
F. Krennrich; G. Blaylock; S. M. Bradbury; J. H. Buckley; K. L. Byrum; D. A. Carter-Lewis; O. Celik; P. Cogan; W. Cui; M. K. Daniel; C. Dowdall; C. Duke; T. Ergin; A. Falcone; S. J. Fegan; P Fortin; L. Fortson; K. Gibbs; G. H. Gillanders; K G Gutierrez; J. Grube; D. Hanna; E. Hays; J. Holder; D. Horan; S. B. Hughes; T. B. Humensky; A. Imran; I. Jung; P. Kaaret
VERITAS is a ground-based gamma-ray observatory covering energies between 100 GeV and 50 TeV and will start operating by January 2007. We give a brief report of the construction status and performance characteristics of the telescopes.
The Astrophysical Journal | 2018
A. Archer; M. Krause; A. N. Otte; C. B. Rulten; W. Cui; D. Kieda; W. Brisken; T. T. Y. Lin; J. Holder; J. Quinn; M. Hütten; A. J. Weinstein; V. Bugaev; S. Kumar; R. Mukherjee; T. B. Humensky; G. H. Gillanders; S. McArthur; N. Park; E. Roache; K. Ragan; M. Buchovecky; L. Fortson; G. Hughes; R. A. Ong; I. Sadeh; A. Furniss; A. Flinders; K. Shahinyan; P. T. Reynolds
HESS J1943+213 is a very-high-energy (VHE;
Monthly Notices of the Royal Astronomical Society | 2017
C. Allen; M. Santander; M. Krause; K. Meagher; C. B. Rulten; W. Cui; D. Kieda; J. Holder; M. Kertzman; M. Hütten; K. Ragan; E. Bourbeau; J. Grube; A. N. Otte; N. Håkansson; A. C. Rovero; V. Bugaev; J. V. Tucci; S. Kumar; R. Mukherjee; H. Fleischhack; A. Pichel; T. B. Humensky; G. H. Gillanders; A. J. Weinstein; N. Park; S. McArthur; J. Tyler; J. L. Christiansen; M. Buchovecky
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arXiv: High Energy Astrophysical Phenomena | 2006
T. C. Weekes; R. Atkins; H. M. Badran; G. Blaylock; I. H. Bond; P. J. Boyle; S. M. Bradbury; J. H. Buckley; K. L. Bryum; D. A. Carter-Lewis; O. Celik; Y. C. Chow; P. Cogan; W. Cui; M. K. Daniel; I. de la Calle Perez; C. Dowdall; P. Dowkontt; C. Duke; T. Ergin; A. Falcone; D. J. Fegan; S. J. Fegan; J. P. Finley; P. Fortin; L. Fortson; S. Gammell; K. G. Gibbs; G. H. Gillanders; J. Grube
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HIGH ENERGY GAMMA-RAY ASTRONOMY: 2nd International Symposium on High Energy Gamma-Ray Astronomy | 2005
J. Holder; H. M. Badran; G. Blaylock; I. H. Bond; P. J. Boyle; S. M. Bradbury; J. H. Buckley; K. L. Byrum; D. A. Carter-Lewis; O. Celik; P. Cogan; W. Cui; I. de la Calle Perez; M. K. Daniel; C. Duke; A. Falcone; D. J. Fegan; S. J. Fegan; J. P. Finley; L. Fortson; S. Gammell; K. G. Gibbs; G. H. Gillanders; J. Grube; K. J. Guiterrez; J. Hall; D. Hanna; D. Horan; S. B. Hughes; T. B. Humensky
gamma
HIGH ENERGY GAMMA-RAY ASTRONOMY: 2nd International Symposium on High Energy Gamma-Ray Astronomy | 2005
Abe D. Falcone; H. M. Badran; G. Blaylock; I. H. Bond; P. J. Boyle; S. M. Bradbury; J. H. Buckley; K. L. Byrum; D. A. Carter-Lewis; O. Celik; P. Cogan; W. Cui; M. K. Daniel; I. de la Calle Perez; P. Dowkontt; C. Duke; D. J. Fegan; S. J. Fegan; J. P. Finley; L. Fortson; S. Gammell; K. G. Gibbs; G. H. Gillanders; J. Grube; K. J. Guiterrez; J. Hall; D. Hanna; J. Holder; D. Horan; S. B. Hughes
-ray source in the direction of the Galactic Plane. Studies exploring the classification of the source are converging towards its identification as an extreme synchrotron BL Lac object. Here we present 38 hours of VERITAS observations of HESS J1943+213 taken over two years. The source is detected with
HIGH ENERGY GAMMA-RAY ASTRONOMY: 2nd International Symposium on High Energy Gamma-Ray Astronomy | 2005
M. Daniel; H. M. Badran; I. H. Bond; P. J. Boyle; S. M. Bradbury; J. H. Buckley; K. L. Byrum; D. A. Carter-Lewis; O. Celik; P. Cogan; W. Cui; I. de la Calle Perez; C. Duke; A. Falcone; D. J. Fegan; S. J. Fegan; J. P. Finley; L. Fortson; S. Gammell; K. G. Gibbs; G. H. Gillanders; J. Grube; K. J. Guiterrez; J. Hall; D. Hanna; J. Holder; D. Horan; S. B. Hughes; T. B. Humensky; I. Jung
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HIGH ENERGY GAMMA-RAY ASTRONOMY: 2nd International Symposium on High Energy Gamma-Ray Astronomy | 2005
D. Horan; H. M. Badran; G. Blaylock; I. H. Bond; P. J. Boyle; S. M. Bradbury; J. H. Buckley; K. L. Byrum; D. A. Carter-Lewis; O. Celik; P. Cogan; W. Cui; M. K. Daniel; I. de la Calle Perez; C. Duke; A. Falcone; D. J. Fegan; S. J. Fegan; J. P. Finley; L. Fortson; S. Gammell; K. G. Gibbs; G. H. Gillanders; J. Grube; K. J. Guiterrez; J. Hall; D. Hanna; J. Holder; S. B. Hughes; T. B. Humensky
20 standard deviations significance, showing a remarkably stable flux and spectrum in VHE
