Constraints on Association of Single‐Pulse Gamma‐Ray Bursts and Supernovae

1999 ◽  
Vol 518 (2) ◽  
pp. 901-908 ◽  
Author(s):  
J. P. Norris ◽  
J. T. Bonnell ◽  
K. Watanabe
Keyword(s):  
Gamma Ray ◽  
Single Pulse ◽  
Gamma Ray Bursts

scholarly journals Time-resolved GRB polarization with POLAR and GBM

2019 ◽  
Vol 627 ◽  
pp. A105 ◽  
Author(s):  
J. M. Burgess ◽  
M. Kole ◽  
F. Berlato ◽  
J. Greiner ◽  
G. Vianello ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Single Pulse ◽  
Current Data ◽  
Gamma Ray Bursts ◽  
Polarization Angle ◽  
Analysis Pipeline ◽  
Time Resolved ◽  
Polarization Models ◽  
Probabilistic Context ◽  
Prompt Emission

Context. Simultaneousγ-ray measurements ofγ-ray burst spectra and polarization offer a unique way to determine the underlying emission mechanism(s) in these objects, as well as probing the particle acceleration mechanism(s) that lead to the observedγ-ray emission.Aims. We examine the jointly observed data from POLAR andFermi-GBM of GRB 170114A to determine its spectral and polarization properties, and seek to understand the emission processes that generate these observations. We aim to develop an extensible and statistically sound framework for these types of measurements applicable to other instruments.Methods. We leveraged the existing3MLanalysis framework to develop a new analysis pipeline for simultaneously modeling the spectral and polarization data. We derived the proper Poisson likelihood forγ-ray polarization measurements in the presence of background. The developed framework is publicly available for similar measurements with otherγ-ray polarimeters. The data are analyzed within a Bayesian probabilistic context and the spectral data from both instruments are simultaneously modeled with a physical, numerical synchrotron code.Results. The spectral modeling of the data is consistent with a synchrotron photon model as has been found in a majority of similarly analyzed single-pulse gamma-ray bursts. The polarization results reveal a slight trend of growing polarization in time reaching values of ∼30% at the temporal peak of the emission. We also observed that the polarization angle evolves with time throughout the emission. These results suggest a synchrotron origin of the emission but further observations of many GRBs are required to verify these evolutionary trends. Furthermore, we encourage the development of time-resolved polarization models for the prompt emission of gamma-ray bursts as the current models are not predictive enough to enable a full modeling of our current data.

Correlation between pulse-width and peak luminosity of single-pulse long gamma-ray bursts

2010 ◽  
Vol 53 (S1) ◽  
pp. 69-72 ◽  
Author(s):  
JiaGan Deng ◽  
EnWei Liang
Keyword(s):  
Pulse Width ◽  
Gamma Ray ◽  
Single Pulse ◽  
Gamma Ray Bursts ◽  
Peak Luminosity

scholarly journals Chasing the association of single-pulse gamma-ray bursts and supernovae

1999 ◽  
Vol 138 (3) ◽  
pp. 471-472
Author(s):  
J. Bonnell ◽  
J. Norris ◽  
K. Watanabe
Keyword(s):  
Gamma Ray ◽  
Single Pulse ◽  
Gamma Ray Bursts

From Single Pulse to Multi-Pulse: looking for Gamma-ray Bursts intimate properties

2009 ◽  
Author(s):  
S. Cutini ◽  
L. A. Antonelli ◽  
L. Piro ◽  
B. Preger ◽  
A. Galli ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Single Pulse ◽  
Gamma Ray Bursts

Gamma-ray bursts

AccessScience ◽  
2015 ◽  
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Bursts

Gamma-ray bursts: Neutron afterglow

Nature China ◽  
2009 ◽  
Author(s):  
Tim Reid
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Bursts

Elderly probe nails gamma-ray bursts

Nature ◽  
2005 ◽  
Author(s):  
Mark Peplow
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Bursts

On the nature of cosmic gamma-ray bursts

1996 ◽  
Vol 166 (7) ◽  
pp. 743-762 ◽  
Author(s):  
B.I. Luchkov ◽  
I.G. Mitrofanov ◽  
I.L. Rozental'
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Bursts

Cosmic gamma-ray bursts and soft gamma-repeaters — observations and modeling of extreme astrophysical phenomena (100th anniversary of the Ioffe Institute)

2018 ◽  
Vol 189 (08) ◽  
pp. 785-802 ◽  
Author(s):  
Rafail L. Aptekar ◽  
Andrei M. Bykov ◽  
Sergei V. Golenetskii ◽  
Dmitrii D. Frederiks ◽  
Dmitry S. Svinkin ◽  
...  
Keyword(s):  
Gamma Ray ◽  
100Th Anniversary ◽  
Gamma Ray Bursts ◽  
Soft Gamma Repeaters ◽  
Ioffe Institute ◽  
Astrophysical Phenomena
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