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Implications for the Origin of GRB 070201 from LIGO Observations
LIGO Scientific Collaboration, K. Hurley
We analyzed the available LIGO data coincident with GRB 070201, a short duration hard spectrum gamma-ray burst whose electromagnetically determined sky position is coincident with…
Search for optical activity of SGR 1806-20
G. Beskin, V. Debur, V. Plokhotnichenko +5
The region of SGR 1806-20 localization was observed during its gamma-ray activity in 2001. The observations have been performed on the 6-meter telescope of the Special Astrophysica…
Swift observations of GRB050904: the most distant cosmic explosion ever observed
G. Cusumano, V. Mangano, G. Chincarini +30
Swift discovered the high redshift (z=6.29) GRB050904 with the Burst Alert Telescope (BAT) and began observing with its narrow field instruments 161 s after the burst onset. This g…
Detection of a huge explosion in the early Universe
G. Cusumano, V. Mangano, G. Chincarini +29
Gamma-ray Bursts (GRBs) are bright flashes of high energy photons that can last from about 10 milliseconds to 10 minutes. Their origin and nature have puzzled the scientific commun…
Swift panchromatic observations of the bright gamma-ray burst GRB050525a
A. J. Blustin, D. Band, S. Barthelmy +12
The bright gamma-ray burst GRB050525a has been detected with the Swift observatory, providing unique multiwavelength coverage from the very earliest phases of the burst. The X-ray…
A short gamma-ray burst apparently asssociated with an elliptical galaxy at redshift z=0.225
N. Gehrels
Gamma Ray Bursts (GRBs) are bright, brief flashes of high energy photons that have fascinated scientists for 30 years. They come in two classes: long (>2 s), softspectrum bursts an…
The 1st INTEGRAL SPI-ACS Gamma-Ray Burst Catalogue
A. Rau, A. v. Kienlin, K. Hurley +1
We present the sample of gamma-ray bursts detected with the anti-coincidence shield ACS of the spectrometer SPI on-board INTEGRAL for the first 26.5 months of mission operation (up…
GRB 020531: A Short, Hard Gamma-Ray Burst Localized and Observed by HETE-2
D. Q. Lamb, G. R. Ricker, J. -L. Atteia +15
The HETE-2 FREGATE and WXM instruments detected a short, hard GRB at 00:26:18.72 UT on 31 May 2002. A preliminary localization was reported as a GCN Position Notice 88 min after th…
HETE-2 Localization and Observations of the Short, Hard Gamma-Ray Burst GRB020531
D. Q. Lamb, G. R. Ricker, J. -L. Atteia +44
The {\it HETE-2} (hereafter \HETE) French Gamma Telescope (FREGATE) and the Wide-field X-ray Monitor (WXM) instruments detected a short ( msec in the FREGATE 85-300 k…
Detection of the optical afterglow of GRB 000630: Implications for dark bursts
J. U. Fynbo, B. L. Jensen, J. Gorosabel +25
We present the discovery of the optical transient of the long-duration gamma-ray burst GRB000630. The optical transient was detected with the Nordic Optical Telescope 21.1 hours af…
HST/STIS observations of GRB000301C: CCD imaging and NUV MAMA spectroscopy
A. Smette, A. S. Fruchter, T. R. Gull +24
We present HST/STIS observations of the optical counterpart (OT) of the gamma-ray burster GRB 000301C obtained on 2000 March 6, five days after the burst. CCD clear aperture imagin…
ASCA Observation of the quiescent X-ray counterpart to SGR1627-41
K. Hurley, T. Strohmayer, P. Li +9
We present a 2 - 10 keV ASCA observation of the field around the soft gamma repeater SGR1627-41. A quiescent X-ray source was detected in this observation whose position was consis…
Observations of a possible new soft gamma repeater, SGR1801-23
T. Cline, D. D. Frederiks, S. Golenetskii +4
We report on two observations of a soft bursting source in 1997 June, whose time histories and energy spectra are consistent with those of the soft gamma repeaters. The source can…
BeppoSAX observations of GRB970402
L. Nicastro, L. Amati, L. A. Antonelli +10
GRB970402 is the fourth gamma-ray burst detected by BeppoSAX simultaneously in the Gamma Ray Burst Monitor (GRBM) and one of the two Wide Field Cameras (WFCs). A rapid pointing of…