# BATSE Observations of Gamma-Ray Burst Tails

@article{Connaughton2001BATSEOO,
title={BATSE Observations of Gamma-Ray Burst Tails},
author={Valerie Connaughton},
journal={The Astrophysical Journal},
year={2001},
volume={567},
pages={1028-1036}
}
With the discovery of low-energy radiation appearing to come from the site of gamma-ray bursts in the hours to weeks after the initial burst of gamma rays, it would appear that astronomers have seen a cosmological imprint made by the burster on its surroundings. I discuss in this paper the phenomenon of postburst emission in BATSE gamma-ray bursts at energies traditionally associated with prompt emission. By summing the background-subtracted signals from hundreds of bursts, I find that tails…
85 Citations

## Figures and Tables from this paper

Precursor activity in bright, long BATSE gamma-ray bursts
We study a sample of bright, long Burst and Transient Source Experiment (BATSE) gamma-ray burst (GRB) light curves in the 200 s before the detection of the GRB prompt emission. We find that in a
Discovery of the short γ-ray burst GRB 050709
• Physics
Nature
• 2005
Gamma-ray bursts (GRBs) fall into two classes: short-hard and long-soft bursts. The latter are now known to have X-ray and optical afterglows, to occur at cosmological distances in star-forming
Short Gamma-Ray Bursts with Extended Emission
• Physics
• 2006
The recent association of several short gamma-ray bursts (GRBs) with early-type galaxies with low star formation rates demonstrates that short bursts arise from a different progenitor mechanism than
Superlong gamma-ray bursts
• Physics
• 2003
We searched for anomalously long gamma-ray bursts (GRBs) in the archival records of the Burst and Transient Sources Experiment (BATSE). Ten obvious superlong (>500 s) GRBs with almost continuous
Gamma-ray bursts with extended emission observed with BATSE
• Physics
• 2012
We present the results of our systematic search for extended emission components following initial short gamma-ray burst (GRB) spikes, using Burst and Transient Source Experiment (BATSE)
Short-Duration Gamma-Ray Bursts
Gamma-ray bursts (GRBs) display a bimodal duration distribution with a separation between the short- and long-duration bursts at about 2 s. The progenitors of long GRBs have been identified as
The physics of gamma-ray bursts
Gamma-ray bursts (GRB's), short and intense pulses of low-energy $\ensuremath{\gamma}$ rays, have fascinated astronomers and astrophysicists since their unexpected discovery in the late sixties.
Gamma-Ray Bursts in the Swift Era
• Physics
• 2006
With its rapid-response capability and multiwavelength complement of instruments, the Swift satellite has transformed our physical understanding of γ-ray bursts (GRBs). Providing high-quality
Discovery of an Afterglow Extension of the Prompt Phase of Two Gamma Ray Bursts Observed by Swift
• Physics
• 2005
Contemporaneous BAT and XRT observations of two recent well-covered GRBs observed by Swift, GRB 050315 and GRB 050319, show clearly a prompt component of the afterglow emission. The rapid slewing

## References

SHOWING 1-10 OF 23 REFERENCES
Discovery of an X-ray afterglow associated with the γ-ray burst of 28 February 1997
• Physics
Nature
• 1997
Establishing the nature of γ-ray bursts is one of the greatest challenges in high-energy astrophysics. The distribution of these bursts is isotropic across the sky, but inhomogeneous in space, with a
Detection of a γ-ray burst of very long duration and very high energy
• Physics
Nature
• 1994
ALTHOUGH γ-ray bursts (GRBs) have been known for more than 20 years, their origin remains mysterious1. Suggestions have ranged from nearby colliding comets2 to merging neutron stars at cosmological
Transient optical emission from the error box of the γ-ray burst of 28 February 1997
• Physics
Nature
• 1997
For almost a quarter of a century1, the origin of γ-ray bursts— brief, energetic bursts of high-energy photons—has remained unknown. The detection of a counterpart at another wavelength has long been
Spectral evolution of pulse structures in gamma-ray bursts
• Physics
• 1986
The Hard X-Ray Burst Spectrometer (HXRBS) and Gamma-Ray Spectrometer (GRS) data from the Solar Maximum Mission satellite have been searched for gamma-ray bursts with sufficient intensities and
Evidence for an Early High-Energy Afterglow Observed with BATSE from GRB 980923
• Physics
• 1999
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 variability
Pulse Width Evolution in Gamma-Ray Bursts: Evidence for Internal Shocks
• Physics
• 2000
Many cosmological models of gamma-ray bursts (GRBs) envision the energy source to be a cataclysmic stellar event leading to a relativistically expanding fireball. Particles are thought to be
Predictions for the Very Early Afterglow and the Optical Flash
• Physics
• 1999
According to the internal-external shocks model for gamma-ray bursts (GRBs), the GRB is produced by internal shocks within a relativistic flow while the afterglow is produced by external shocks with
Analytic Light Curves of Gamma-Ray Burst Afterglows: Homogeneous versus Wind External Media
Assuming an adiabatic evolution of a gamma-ray burst (GRB) remnant interacting with an external medium, we calculate the injection, cooling, and absorption break frequencies and the afterglow flux
Unsteady outflow models for cosmological gamma-ray bursts
• Physics
• 1994
The 'event' that triggers a gamma-ray burst cannot last for more than a few seconds. This is, however, long compared with the dynamical timescale of a compact stellar-mass object (approximately 10
On the Synchrotron Self-Compton Emission from Relativistic Shocks and Its Implications for Gamma-Ray Burst Afterglows
• Physics
• 2001
We consider the effects of inverse Compton scattering of synchrotron photons from relativistic electrons in ?-ray burst (GRB) afterglows. We compute the spectrum of the inverse Compton emission and