J/A+A/525/A53 GBM parameters for detected FERMI bursts (Guetta+, 2011)
FERMI constraints on the high energy, ∼1 GeV, emission of long gamma ray bursts.
Guetta D., Pian E., Waxman E.
<Astron. Astrophys., 525, A53 (2011)>
=2011A&A...525A..53G 2011A&A...525A..53G
ADC_Keywords: Gamma rays
Keywords: gamma rays: general
Abstract:
We investigate the constraints imposed on the luminosity function (LF)
of long duration gamma ray bursts (LGRBs) by the flux distribution of
bursts detected by the GBM at ∼1MeV, and the implications of the non
detection of the vast majority, ∼95%, of the LGRBs at higher energy,
∼1GeV, by the LAT detector.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 98 204 GBM (Gamma-ray Burst Monitor) parameters
for the bursts detected by Fermi
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- GRB GRB name
9- 14 F6.1 s T90 Duration of the GRB
16- 23 E8.3 mJ/m2 Fluence ?=- GRB fluence in the energy interval
specified in "Band" (in erg/cm2)
25- 32 E8.3 ph/s/cm2 PF ?=- GRB peak flux
34- 35 I2 keV Band1 ?=- Energy band for the fluence determination
36- 40 I5 keV Band2 ?=- Energy band for the fluence determination
42- 47 A6 --- Function Method used to fit the spectra (1)
49- 54 F6.1 keV Ep ?=- Peak energy (2)
56- 61 F6.2 --- alpha ?=- alpha spectral index (2)
63- 67 F5.2 --- beta ?=- beta spectral index (2)
69- 73 F5.1 deg theta ?=- Angle, from the LAT boresight
75 I1 --- LAT [0/1] LAT detection (1=YES, 0=NO)
77- 84 E8.3 mW/m2 f(1Mev) ?=0 The flux (νfν) at ∼1MeV
86- 93 E8.2 mW/m2 f(100MeV) ?=0 The flux (νfν) at ∼100MeV
obtained by extrapolating to high energy
the ∼1MeV spectrum
95- 98 F4.2 --- z ?=- Redshift
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Note (1): Methods as follows:
Band = broken power law
SPL = single power law
PL+HEC = power law and exponential cutoff
Note (2): the "Band" law fits the spectrum with
* dN/dE ∝ Eα for E<Ep
* dN/dE ∝ Eβ for E>Ep
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 15-Apr-2011