Fine time resolution spectral analysis of the 1978 November 4 and 19 gamma-ray bursts

1983 ◽  
Author(s):  
C. Barat
Keyword(s):  
Spectral Analysis ◽  
Time Resolution ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Fine Time

scholarly journals The First Pulse of the Extremely Bright GRB 130427A: A Test Lab for Synchrotron Shocks

Science ◽  
2013 ◽  
Vol 343 (6166) ◽  
pp. 51-54 ◽  
Author(s):  
R. Preece ◽  
J. Michael Burgess ◽  
A. von Kienlin ◽  
P. N. Bhat ◽  
M. S. Briggs ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Power Law ◽  
Time Resolution ◽  
Gamma Ray ◽  
Strongly Correlated ◽  
Initial Pulse ◽  
Gamma Ray Burst ◽  
Curvature Effects ◽  
Peak Energy ◽  
Fine Time

Gamma-ray burst (GRB) 130427A is one of the most energetic GRBs ever observed. The initial pulse up to 2.5 seconds is possibly the brightest well-isolated pulse observed to date. A fine time resolution spectral analysis shows power-law decays of the peak energy from the onset of the pulse, consistent with models of internal synchrotron shock pulses. However, a strongly correlated power-law behavior is observed between the luminosity and the spectral peak energy that is inconsistent with curvature effects arising in the relativistic outflow. It is difficult for any of the existing models to account for all of the observed spectral and temporal behaviors simultaneously.

scholarly journals Spectral Analysis of Fermi-LAT Gamma-Ray Bursts with Known Redshift and their Potential Use as Cosmological Standard Candles

2019 ◽  
Vol 887 (1) ◽  
pp. 13 ◽  
Author(s):  
F. Fana Dirirsa ◽  
S. Razzaque ◽  
F. Piron ◽  
M. Arimoto ◽  
M. Axelsson ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Potential Use

scholarly journals GAMMA RAY BURSTS AND PARTICLE PHYSICS

1995 ◽  
Vol 10 (38) ◽  
pp. 2897-2913
Author(s):  
DAVID B. CLINE
Keyword(s):  
Black Hole ◽  
Particle Physics ◽  
Gamma Ray ◽  
High Energy ◽  
Gamma Ray Bursts ◽  
Primordial Black Hole ◽  
Black Hole Evaporation ◽  
Very High Energy ◽  
Fine Time ◽  
Made In

We provide a brief review of the current situation concerning gamma ray bursts, with emphasis on the role that particle physics may play in the interesting phenomena. The current understanding of GRB origins allows for a large range of physical processes from primordial black hole evaporation to neutron star and black hole collisions. There does not seem to be a simple standard luminosity function and the burst times range from ms to 1000 s of seconds five orders of magnitude. It is likely that some type of fireball model is needed to explain the GRBs. No counterparts of GRB have been detected. We indicate some ways in which progress can be made in either the study of the fine time structure (~μs) or the detection of very high energy photons (>100 GeV to >100 TeV). We also indicate how a small but unique class of the GRB could come from primordial black hole evaporation.

scholarly journals Time resolved spectral analysis of bright gamma ray bursts

2002 ◽  
Vol 393 (2) ◽  
pp. 409-423 ◽  
Author(s):  
G. Ghirlanda ◽  
A. Celotti ◽  
G. Ghisellini
Keyword(s):  
Spectral Analysis ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Time Resolved

scholarly journals Correlative Spectral Analysis of Gamma-Ray Bursts using Swift-BAT and GLAST-GBM

2008 ◽  
Author(s):  
Michael Stamatikos ◽  
Takanori Sakamoto ◽  
David L. Band ◽  
M. Galassi ◽  
David Palmer ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Gamma Ray ◽  
Gamma Ray Bursts

scholarly journals A Spectral Analysis of Fermi-LLE Gamma-Ray Bursts

2020 ◽  
Vol 890 (1) ◽  
pp. 90
Author(s):  
Ming-Ya Duan ◽  
Xiang-Gao Wang
Keyword(s):  
Spectral Analysis ◽  
Gamma Ray ◽  
Gamma Ray Bursts

Detailed spectral analysis revealing two distinct classes of pulses in gamma-ray bursts

1996 ◽  
Author(s):  
Geoffrey N. Pendleton ◽  
William S. Paciesas ◽  
Robert D. Preece ◽  
Michael S. Briggs ◽  
Chryssa Kouveliotou ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Gamma Ray ◽  
Gamma Ray Bursts

scholarly journals A physical background model for the Fermi Gamma-ray Burst Monitor

2020 ◽  
Vol 640 ◽  
pp. A8
Author(s):  
B. Biltzinger ◽  
F. Kunzweiler ◽  
J. Greiner ◽  
K. Toelge ◽  
J. Michael Burgess
Keyword(s):  
Spectral Analysis ◽  
Gamma Ray ◽  
Search Algorithm ◽  
Scientific Output ◽  
Gamma Ray Bursts ◽  
Background Model ◽  
Gamma Ray Burst ◽  
Physical Background ◽  
Transient Events

We present the first physically motivated background model for the Gamma-ray Burst Monitor (GBM) on board the Fermi satellite. Such a physically motivated background model has the potential to significantly improve the scientific output of Fermi/GBM, as it can be used to improve the background estimate for spectral analysis and localization of gamma-ray bursts (GRBs) and other sources. Additionally, this model can also lead to detections of new transient events, since long and weak, or slowly rising, events do not activate one of the existing trigger algorithms. In this paper we show the derivation of such a physically motivated background model, which includes the modeling of the different background sources and the correct handling of the response of GBM. While the goal of the paper is to introduce the model rather than developing a transient search algorithm, we demonstrate the ability of the model to fit the background seen by GBM by showing the following four applications for (1) a canonical GRB, (2) the ultra-long GRB 091024, (3) the V404 Cygni outburst in June 2015, and (4) the ultra-long GRB 130925A.

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