English
Related papers

Related papers: Management of a Multi-User Robotic Observatory

200 papers

Observations of high energy emission from gamma-ray bursts (GRBs) constrain the extreme physical conditions associated with these energetic cosmic explosions. The Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope, a…

High Energy Astrophysical Phenomena · Physics 2009-12-17 S. B. Pandey , Carl W. Akerlof , W. Zheng , F. Yuan

High-redshift gamma-ray bursts (GRBs) provide a powerful tool to probe the early universe, but still for relatively few do we have good observations of the afterglow. We here report the optical and near-infrared observations of the…

The discovery of the first electromagnetic counterpart to a gravitational wave signal has generated follow-up observations by over 50 facilities world-wide, ushering in the new era of multi-messenger astronomy. In this paper, we present…

High Energy Astrophysical Phenomena · Physics 2017-12-27 I. Andreoni , K. Ackley , J. Cooke , A. Acharyya , J. R. Allison , G. E. Anderson , M. C. B. Ashley , D. Baade , M. Bailes , K. Bannister , A. Beardsley , M. S. Bessell , F. Bian , P. A. Bland , M. Boer , T. Booler , A. Brandeker , I. S. Brown , D. Buckley , S. -W. Chang , D. M. Coward , S. Crawford , H. Crisp , B. Crosse , A. Cucchiara , M. Cupák , J. S. de Gois , A. Deller , H. A. R. Devillepoix , D. Dobie , E. Elmer , D. Emrich , W. Farah , T. J. Farrell , T. Franzen , B. M. Gaensler , D. K. Galloway , B. Gendre , T. Giblin , A. Goobar , J. Green , P. J. Hancock , B. A. D. Hartig , E. J. Howell , L. Horsley , A. Hotan , R. M. Howie , L. Hu , Y. Hu , C. W. James , S. Johnston , M. Johnston-Hollitt , D. L. Kaplan , M. Kasliwal , E. F. Keane , D. Kenney , A. Klotz , R. Lau , R. Laugier , E. Lenc , X. Li , E. Liang , C. Lidman , L. C. Luvaul , C. Lynch , B. Ma , D. Macpherson , J. Mao , D. E. McClelland , C. McCully , A. Möller , M. F. Morales , D. Morris , T. Murphy , K. Noysena , C. A. Onken , N. B. Orange , S. Oslowski , D. Pallot , J. Paxman , S. B. Potter , T. Pritchard , W. Raja , R. Ridden-Harper , E. Romero-Colmenero , E. M. Sadler , E. K. Sansom , R. A. Scalzo , B. P. Schmidt , S. M. Scott , N. Seghouani , Z. Shang , R. M. Shannon , L. Shao , M. M. Shara , R. Sharp , M. Sokolowski , J. Sollerman , J. Staff , K. Steele , T. Sun , N. B. Suntzeff , C. Tao , S. Tingay , M. C. Towner , P. Thierry , C. Trott , B. E. Tucker , P. Väisänen , V. Venkatraman Krishnan , M. Walker , L. Wang , X. Wang , R. Wayth , M. Whiting , A. Williams , T. Williams , C. Wolf , C. Wu , X. Wu , J. Yang , X. Yuan , H. Zhang , J. Zhou , H. Zovaro

We present optical and near-infrared searches for afterglow emission from the first four Swift bursts with accurate positions from the X-ray Telescope (XRT). Using telescopes at Las Campanas, Keck, and Palomar observatories we rapidly…

A planned rapid submillimeter (submm) Gamma Ray Burst (GRBs) follow-up observations conducted using the Greenland Telescope (GLT) is presented. The GLT is a 12-m submm telescope to be located at the top of the Greenland ice sheet, where the…

High Energy Astrophysical Phenomena · Physics 2015-09-23 Yuji Urata , Kuiyun Huang , Keiichi Asada , Hiroyuki Hirashita , Makoto Inoue , Paul T. P. Ho

The Milagro Gamma Ray Observatory, located at an altitude of 8,600 feet in the Jemez Mountains of New Mexico, is the world's first large-area water Cherenkov detector capable of continuously monitoring the entire sky for sources of TeV…

Astrophysics · Physics 2012-08-27 The Milagro Collaboration

Since their first discovery in the late 1960s, Gamma-ray bursts have attracted an exponentially growing interest from the international community due to their central role in the most highly debated open questions of the modern research of…

The very-high-energy gamma-ray sky can be surveyed on a daily basis by particle-detector arrays at high (mountain) elevation. In the northern hemisphere the survey recently conducted by the HAWC gamma-ray observatory significantly enriched…

High Energy Astrophysical Phenomena · Physics 2019-08-26 Harm Schoorlemmer

Gamma-ray burst (GRB) jets are narrow, and thus typically point away from us. They are initially ultra-relativistic, causing their prompt $\gamma$-ray and early afterglow emission to be beamed away from us. However, as the jet gradually…

High Energy Astrophysical Phenomena · Physics 2018-09-19 Jonathan Granot , Fabio De Colle , Enrico Ramirez-Ruiz

The detection of gravitational waves from a neutron star merger, GW170817, marked the dawn of a new era in time-domain astronomy. Monitoring of the radio emission produced by the merger, including high-resolution radio imaging, enabled…

High Energy Astrophysical Phenomena · Physics 2021-06-09 Dougal Dobie , Tara Murphy , David L. Kaplan , Kenta Hotokezaka , Juan Pablo Bonilla Ataides , Elizabeth K. Mahony , Elaine M. Sadler

The UV/Optical Telescope (UVOT) is one of three instruments flying aboard the Swift Gamma-ray Observatory. It is designed to capture the early (approximately 1 minute) UV and optical photons from the afterglow of gamma-ray bursts in the…

We present detailed, multi-wavelength analysis of GRB 210704A: a Fermi Gamma-ray Burst Monitor discovered and Fermi Large Area Telescope (LAT) detected gamma-ray burst (GRB). The burst is dominated by a short ($\approx 2$ s) pulse followed…

WIDGET is a robotic telescope for monitoring the HETE-2 field-of-view to detect Gamma-ray Burst optical flashes or possible optical precursors. The system has 62degx62deg wide field-of-view which covers about 80% of HETE-2 one with a 2kx2k…

We report recent results of the CANGAROO Collaboration on very high energy gamma ray emission from pulsars, their nebulae, SNR and AGN in the southern sky. Observations are made in South Australia using the imaging technique of detecting…

Since the launch of the Fermi Gamma-ray Space Telescope on June 11, 2008, 55 gamma-ray bursts (GRBs) have been observed at coordinates that fall within 66^\circ of the Fermi Large Area Telescope (LAT) boresight with precise localizations…

High Energy Astrophysical Phenomena · Physics 2015-05-20 C. W. Akerlof , W. Zheng , S. B. Pandey , T. A. McKay

The Swift Gamma-Ray Explorer is designed to make prompt multiwavelength observations of Gamma-Ray Bursts (GRBs) and GRB afterglows. The X-ray Telescope (XRT) enables Swift to determine GRB positions with a few arcseconds accuracy within 100…

Gamma-ray observations give us a direct view into the most extreme environments of the universe. They help us to study astronomical particle accelerators as supernovae remnants, pulsars, active galaxies or gamma-ray bursts and help us to…

High Energy Astrophysical Phenomena · Physics 2017-08-18 Rolf Buehler

The ARGO-YBJ detector is an extensive air shower array that has been used to monitor the northern $\gamma$-ray sky at energies above 0.3 TeV from 2007 November to 2013 January. In this paper, we present the results of a sky survey in the…

‹ Prev 1 4 5 6 7 8 10 Next ›