Access to Astronomical Catalogues

← Click to display the menu
J/A+A/530/A21       Spectral properties of 438 GRBs          (Nava+, 2011)

Spectral properties of 438 GRBs detected by Fermi/GBM. Nava L., Ghirlanda G., Ghisellini G., Celotti A. <Astron. Astrophys., 530, A21 (2011)> =2011A&A...530A..21N
ADC_Keywords: Gamma rays ; Spectroscopy Keywords: radiation mechanisms: non-thermal - Gamma rays: general Abstract: We present the results of the spectral analysis of the public data of 438 gamma ray bursts (GRBs) detected by the Fermi Gamma ray Burst Monitor (GBM) up to March 2010. For 432 bursts we could fit the time-integrated spectrum. In 318 cases we could reliably constrain the peak energy Eobspeak of their νFν spectrum by analyzing their time-integrated spectrum between 8keV and 35MeV. Eighty percent of these spectra are fitted by a power-law with an exponential cutoff, and the remaining with the Band function. Among these 318 GRBs, 274 belong to the long GRB class and 44 to the short. Description: The GBM detected 438 GRBs up to the end of March 2010. A list of the GRB trigger number and the position in the sky, computed by the GBM, is provided by the Fermi Science Support Center (http://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 103 345 Spectral parameters of the time-averaged spectra of 323 Fermi/GBM GRBs fitted with a curved function table3.dat 66 114 *Spectral parameters of the time-averaged spectra of 108 Fermi/GBM GRBs fitted with a power law (PL) table4.dat 115 234 Spectral parameters of the peak spectra of 235 Fermi/GBM GRBs fitted with a curved function table5.dat 107 228 Spectral parameters of the Fermi/GBM GRBs collected from the GCN Circular Archive
Note on table3.dat: The 6 GRBs for which the analysis cannot be performed (lack of data) are also listed.
See also: J/other/GCN/1070.1 : HETE Trigger Information (Ricker+, 2001) J/A+AS/129/1 : GRANAT/WATCH catalogue of gamma-ray bursts (Sazonov+ 1998) J/ApJS/120/399 : ULYSSES supplement to GRB 3B catalog (Hurley+, 1999) J/ApJS/134/385 : BATSE gamma-ray burst catalog supplement (Kommers+, 2001) J/A+A/427/87 : List of GRBs (Gorosabel+, 2004) J/ApJS/156/217 : IPN supplement to BATSE untriggered GRBs (Hurley+, 2005) J/A+A/473/347 : BeppoSAX complete catalogue of GRBs (Vetere+, 2007) J/other/APh/26.367 : GRB from RICE data (Besson+, 2007) J/ApJ/686/1209 : Optical properties of GRB afterglows (Melandri+, 2008) J/A+A/498/399 : GRB observed with RHESSI satellite (Ripa+, 2009) J/ApJ/690/163 : First Swift UV-Opt GRB afterglow catalog (Roming+, 2009) J/MNRAS/397/1177 : Swift-XRT observations of GRBs (Evans+, 2009) J/ApJS/191/179 : IPN supplement to the BeppoSAX GRB catalog (Hurley+, 2010) J/ApJS/195/2 : The second Swift BAT GRB catalog (BAT2) (Sakamoto+, 2011) J/A+A/528/A122 : SwiftFT catalog (Puccetti+, 2011) J/ApJS/199/18 : The Fermi GBM catalog (Paciesas+, 2012) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 9 I09 --- GRB GRB name 11- 17 F7.3 s Dt Integration time 19- 22 A4 --- Model Best fit model (CPL or Band) (G3) 24- 31 F8.3 ph/cm2/ks A Normalization constant (G1) 33- 39 F7.2 ph/cm2/ks e_A rms uncertainty on A 41- 46 F6.3 --- alpha Low-energy spectral index α (G3) 48- 52 F5.3 --- e_alpha rms uncertainty on alpha 53- 59 F7.2 keV Epeak Peak energy of the νFν spectrum 61- 66 F6.2 keV e_Epeak rms uncertainty on Epeak 68- 72 F5.2 --- beta ?=- High-energy spectral index β (G3) 74- 77 F4.2 --- e_beta ? rms uncertainty on beta 79- 85 F7.2 --- C-stat Castor statistics resulting from the fit 87- 89 I3 --- dof Degrees of freedom 91- 97 F7.2 10-10J/m2 Fluence Fluence (in 10^-7^erg/cm2) (G2) 99-103 F5.2 10-10J/m2 e_Fluence rms uncertainty on Fluence (in 10-7erg/cm2)
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 9 I09 --- GRB GRB name 11- 16 F6.2 s Dt ? Integration time 18- 19 A2 --- Model Best fit model (PL) (G3) 21- 25 F5.2 ph/cm2/ks A ? Normalization constant (G1) 27- 30 F4.2 ph/cm2/ks e_A ? rms uncertainty on A 32- 36 F5.2 --- alpha ? spectral index α (G3) 38- 41 F4.2 --- e_alpha ? rms uncertainty on alpha 43- 49 F7.2 --- C-stat ? Castor statistics resulting from the fit 51- 53 I3 --- dof ? Degrees of freedom 55- 60 F6.2 10-10J/m2 Fluence ? Fluence (in 10^-7^erg/cm2) (2) 62- 66 F5.2 10-10J/m2 e_Fluence ? rms uncertainty on Fluence (in 10-7erg/cm2)
Note (2): The fluence is computed in the 8keV-1MeV energy range.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 9 I09 --- GRB GRB name 11- 18 F8.4 s Dt Integration time 20- 25 F6.2 s t1 Initial time of the selected temporal bin 27- 32 F6.2 s t2 Final time of the selected temporal bin 34- 37 A4 --- Model Best fit model (CPL Band) (G3) 39- 45 F7.2 ph/cm2/ks A Normalization constant (G1) 47- 52 F6.2 ph/cm2/ks e_A rms uncertainty on A 54- 58 F5.2 --- alpha Low-energy spectral index α (G3) 60- 63 F4.2 --- e_alpha rms uncertainty on alpha 65- 71 F7.2 keV Epeak Peak energy of the νFν spectrum 73- 78 F6.2 keV e_Epeak rms uncertainty on Epeak 80- 84 F5.2 --- beta ?=- High-energy spectral index β (G3) 86- 89 F4.2 --- e_beta ? rms uncertainty on beta 91- 97 F7.2 --- C-stat Castor statistics resulting from the fit 99-101 I3 --- dof Degrees of freedom 103-109 F7.2 10-10J/m2 Fluence Fluence (in 10^-7^erg/cm2) (G2) 111-115 F5.2 10-10J/m2 e_Fluence rms uncertainty on Fluence (in 10-7erg/cm2)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 9 I09 --- GRB GRB name 11- 16 F6.4 --- z ?=- Redshift 18- 24 F7.3 s Dt Integration time 27- 32 F6.1 keV Epeak ?=- Peak energy of the νFν spectrum 34- 39 F6.2 keV e_Epeak ? rms uncertainty on Epeak 42- 48 F7.4 --- alpha Low-energy spectral index 50- 54 F5.3 --- e_alpha rms uncertainty on alpha 55- 60 F6.2 --- beta ?=- High energy spectral index 62- 67 F6.3 --- e_beta ? rms uncertainty on beta 69- 76 E8.3 10-10J/m2 Fluence Fluence (in 10-7erg/cm2) 78- 85 E8.3 10-10J/m2 e_Fluence rms uncertainty on Fluence (in 10-7erg/cm2) 88- 89 I2 keV E0 Lower energy range 90 A1 --- --- [-] 91- 95 I5 keV E1 Upper energy range 97-101 A5 --- r_z Redshift reference (1) 103-107 I5 --- Ref GCN number
Note (1): GCN number or a = Greiner et al., 2009A&A...498...89G b = Salvaterra et al., 2009Natur.461.1258S
Global notes: Note (G1): For all models the pivot energy for the amplitude is 100keV. Note (G2): Fluences obtained by integrating the best-fit model over the 8keV-35MeV energy range. Note (G3): the spectral models are: * PL (power law): F(E)∝E^α * Band (1993ApJ...413..281B): 2 power laws with indices α and β * CPL (Comptonized model): power law with a high energy exponential cutoff.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 29-Aug-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact