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Long-Lag, Wide-Pulse Gamma-Ray Bursts
Currently, the best available probe of the early phase of gamma-ray burst (GRB) jet attributes is the prompt gamma-ray emission, in which several intrinsic and extrinsic variables determine GRB pulseExpand
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Deep Infrared Imaging of the R Coronae Australis Cloud Core
Preliminary analysis is presented for J, H, and K 0 images of the Corona Australis cloud core. Color-color and color-magnitude diagrams reveal relatively few new cluster members. We conclude that theExpand
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CORRELATIONS BETWEEN LAG, LUMINOSITY, AND DURATION IN GAMMA-RAY BURST PULSES
We derive a new peak lag versus peak luminosity relation in gamma-ray burst (GRB) pulses. We demonstrate conclusively that GRB spectral lags are pulse rather than burst properties and show how theExpand
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On the Consistency of Gamma-Ray Burst Spectral Indices with the Synchrotron Shock Model
The current scenario for gamma-ray bursts (GRBs) involves internal shocks for the prompt GRB emission phase and external shocks for the afterglow phase. Assuming optically thin synchrotron emissionExpand
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Evidence for an Early High-Energy Afterglow Observed with BATSE from GRB 980923
In this Letter, we present the first evidence in the BATSE data for a prompt high-energy (25-300 keV) afterglow component from a γ-ray burst, GRB 980923. The event consists of rapid variabilityExpand
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A Gamma-Ray Burst Database of BATSE Spectral Lag and Internal Luminosity Function Values
We present a database of spectral lags and internal luminosity function (ILF) measurements for gamma-ray bursts (GRBs) in the BATSE catalog. Measurements were made using 64 ms count rate data and areExpand
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Detection of Polarization in the Afterglow of GRB 990510 with the ESO Very Large Telescope
Following a BeppoSAX alert and the discovery of the OT at SAAO, we observed GRB 990510 with the FORS instrument on ESO's VLT Unit 1 (Antu). The burst is unremarkable in gamma rays, but in optical isExpand
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How Sample Completeness Affects Gamma-Ray Burst Classification
Unsupervised pattern-recognition algorithms support the existence of three gamma-ray burst classes: class 1 (long, large-fluence bursts of intermediate spectral hardness), class 2 (short,Expand
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Extended Power-Law Decays in BATSE Gamma-Ray Bursts: Signatures of External Shocks?
The connection between gamma-ray bursts (GRBs) and their afterglows is currently not well understood. Afterglow models of synchrotron emission generated by external shocks in the GRB fireball modelExpand
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QUIESCENT BURST EVIDENCE FOR TWO DISTINCT GAMMA-RAY BURST EMISSION COMPONENTS
We have identified two quiescent gamma-ray bursts (GRBs) (bursts having two or more widely separated distinct emission episodes) in which the postquiescent emission exhibits distinctly differentExpand
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