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Relativistic ejecta from X-ray flash XRF 060218 and the rate of cosmic explosions
Over the past decade, long-duration γ-ray bursts (GRBs)—including the subclass of X-ray flashes (XRFs)—have been revealed to be a rare variety of type Ibc supernova. Although all these events resultExpand
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The afterglow of GRB 050709 and the nature of the short-hard γ-ray bursts
The final chapter in the long-standing mystery of the γ-ray bursts (GRBs) centres on the origin of the short-hard class of bursts, which are suspected on theoretical grounds to result from theExpand
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The afterglow and elliptical host galaxy of the short γ-ray burst GRB 050724
Despite a rich phenomenology, γ-ray bursts (GRBs) are divided into two classes based on their duration and spectral hardness—the long-soft and the short-hard bursts. The discovery of afterglowExpand
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Twenty Years of Timing SS 433
We present observations of the optical "moving lines" in spectra of the Galactic relativistic jet source SS 433 spread over a 20 year baseline from 1979 to 1999. The redshift/blueshift of the linesExpand
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A New Population of High-Redshift Short-Duration Gamma-Ray Bursts
The redshift distribution of the short-duration gamma-ray bursts (GRBs) is a crucial, but currently fragmentary,Expand
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Detection of a radio counterpart to the 27 December 2004 giant flare from SGR 1806–20
It was established over a decade ago that the remarkable high-energy transients known as soft γ-ray repeaters (SGRs) are located in our Galaxy and originate from neutron stars with intense (≤ 1015G)Expand
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An Energetic Afterglow from a Distant Stellar Explosion
We present the discovery of radio afterglow emission from the high-redshift (z = 6.295) burst GRB 050904. The peak flux density for this burst is similar to typical low-redshift gamma-ray burstsExpand
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Measurement of Orbital Decay in the Double Neutron Star Binary PSR B2127+11C
We report the direct measurement of orbital period decay in the double neutron star pulsar system PSR B2127+11C in the globular cluster M15 at the rate of (-3.95 ± 0.13) × 10-12, consistent with theExpand
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Multiwavelength Observations of GRB 050820A: An Exceptionally Energetic Event Followed from Start to Finish
We present observations of the unusually bright and long γ-ray burst GRB 050820A, one of the best sampled broadband data sets in the Swift era. The γ-ray light curve is marked by a soft precursorExpand
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A Spectacular Radio Flare from XRF 050416a at 40 Days and Implications for the Nature of X-Ray Flashes
We present detailed optical, near-infrared, and radio observations of the X-ray flash XRF 050416a obtained with Palomar and Siding Springs Observatories, as well as the HST and VLA, placing thisExpand
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