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J/ApJS/199/18             The Fermi GBM catalog                (Paciesas+, 2012)

The Fermi GBM Gamma-Ray Burst catalog: the first two years. Paciesas W.S., Meegan C.A., von Kienlin A., Bhat P.N., Bissaldi E., Briggs M.S., Burgess J.M., Chaplin V., Connaughton V., Diehl R., Fishman G.J., Fitzpatrick G., Foley S., Gibby M., Giles M., Goldstein A., Greiner J., Gruber D., Guiriec S., van der Horst A.J., Kippen R.M., Kouveliotou C., Lichti G., Lin L., McBreen S., Preece R.D., Rau A., Tierney D., Wilson-Hodge C. <Astrophys. J. Suppl. Ser., 199, 18 (2012)> =2012ApJS..199...18P
ADC_Keywords: Gamma rays ; Surveys Mission_Name: Fermi Keywords: catalogs - gamma-ray burst: general Abstract: The Fermi Gamma-ray Burst Monitor (GBM) is designed to enhance the scientific return from Fermi in studying gamma-ray bursts (GRBs). In its first two years of operation GBM triggered on 491 GRBs. We summarize the criteria used for triggering and quantify the general characteristics of the triggered GRBs, including their locations, durations, peak flux, and fluence. This catalog is an official product of the Fermi GBM science team, and the data files containing the complete results are available from the High-Energy Astrophysics Science Archive Research Center. Description: The Fermi Gamma-ray Space Telescope was launched on 2008 June 11 on a mission to study the universe at high energies. The onboard Gamma-ray Burst Monitor (GBM) trigger system for detecting GRBs was first enabled on 2008 July 12. In this paper, we provide a catalog of GRBs that triggered the GBM during its first two years of operation. During this time the instrument burst detection algorithms were triggered 908 times: 492 of these are classified as GRBs, 79 as terrestrial gamma-ray flashes (TGFs), 170 as soft gamma-ray repeaters (SGRs), 31 as solar flares, 61 as charged particles, and 75 as others (galactic sources, accidental statistical fluctuations, or too weak to classify). Of the 491 GRBs (in one case the same GRB triggered GBM twice), 18 were detected by the LAT with high confidence above 100MeV (A. Abdo et al. 2012ApJ...744..146A). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 38 66 Trigger criteria history table2.dat 107 492 GRB triggers: locations and trigger characteristics table3.dat 75 492 GRB durations (50-300keV) table4.dat 66 492 GRB fluence & peak flux (10-1000keV) table5.dat 66 492 GRB fluence & peak flux (50-300keV)
See also: J/A+A/525/A53 : GBM parameters for detected FERMI bursts (Guetta+, 2011) J/A+A/530/A21 : Spectral properties of 438 GRBs (Nava+, 2011) J/ApJS/196/1 : The IPN supplement to the BATSE 5B catalog (Hurley+, 2011) J/ApJS/188/405 : Fermi-LAT first source catalog (1FGL) (Abdo+, 2010) J/ApJ/701/824 : Afterglows of short and long-duration GRBs (Nysewander+, 2009) J/A+A/506/1563 : First AGILE catalog of gamma-ray sources (Pittori+, 2009) J/A+A/438/1175 : First INTEGRAL SPI-ACS Gamma-Ray Burst Catalogue (Rau+, 2005) http://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html : Fermi GBM burst catalog on line http://gammaray.nsstc.nasa.gov/gbm/science/grbs/month_listings/ : GBM GRB light curves month by month http://www.ssl.berkeley.edu/ipn3/ : The third interplanetary network homepage Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Al [1/66] Algorithm number 4- 8 I5 ms Time Trigger timescale 10- 13 I4 ms Off Offset 15- 17 A3 --- Ch Channels 19 A1 --- l_E Limit flag on E 20- 24 A5 keV E Energy range 26- 27 A2 --- Th1 Threshold (0.1sigma) on 2008 Jul 11 (1) 29- 30 A2 --- Th2 Threshold (0.1sigma) on 2008 Jul 14 (1) 32- 33 A2 --- Th3 Threshold (0.1sigma) on 2008 Aug 1 (1) 35- 36 A2 --- Th4 Threshold (0.1sigma) on 2009 May 8 (1) 38 A1 --- Th5 Threshold (0.1sigma) on 2009 Jul 2 (1)
Note (1): Symbol ":" indicates no change from previous setting; "C" indicates that the algorithm is in compute mode (see the text); and "D" indicates that the algorithm is disabled.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [bn] 3- 11 I09 --- ID Trigger identifier (bnYYMMDDNNN) 13 A1 --- Flag [ce] Source emission flag (1) 15- 17 A3 --- --- [GRB] 19- 25 A7 --- GRB GRB name (YYMMDDA) 27- 39 A13 "h:m:s" Obs.time UT Time of the trigger 41- 45 F5.1 deg RAdeg Right Ascension in decimal degrees (J2000) 47- 51 F5.1 deg DEdeg Declination in decimal degrees (J2000) 53- 56 F4.1 deg ePos Positional uncertainty 58- 66 A9 --- Loc Source of the coordinate localization used for the trigger (Fermi, Swift, IPN...) 68- 69 I2 --- Al [1,56] Trigger algorithm 71- 74 I4 ms Time Trigger timescale 76- 81 A6 keV Energy Trigger energy range 83-107 A25 --- Other Other detections (2)
Note (1): Flag as follows: c = GRB091024A triggered GBM twice. e = burst has significant emission in at least one BGO detector (see text). Note (2): Other instrument detections as follows: K = Konus-WInd; K-RF = Konus-RF; S = Swift; IA = INTEGRAL SPI-ACS; IB = INTEGRAL Burst Alert System; W = Suzaku-WAM; R = RHESSI; M = MAXI; SA = SuperAGILE; AM = AGILE-MCAL; A = AGILE; L = Fermi LAT.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [bn] 3- 11 I09 --- ID Trigger identifier (bnYYMMDDNNN) 13 A1 --- R Individual remarks (3) 15- 27 A13 --- Det Detectors used 29- 35 F7.3 s T90 ? Time burst was between 5% and 95% of its fluence 37- 42 F6.3 s e_T90 ? Uncertainty in T90 44- 51 F8.3 s T90st ? Start of T90 relative to trigger time 53- 59 F7.3 s T50 ? Time burst was between 25% and 75% of its fluence 61- 66 F6.3 s e_T50 ? Uncertainty in T50 68- 75 F8.3 s T50st ? Start of T50 relative to trigger time
Note (3): Flag as follows: a = Data problems precluded duration analysis. b = Used TTE binned at 32ms. c = Partial earth occultation is likely; durations are lower limits. d = Possible precursor at ∼T0-120s before trigger. e = Data cut off while burst in progress; durations are lower limits. f = SAA entry at T_0+83s after trigger; durations are lower limits. g = GRB091024 triggered GBM twice. h = Too weak to measure durations; visual duration is ∼0.025s. i = Possible contamination due to emergence of Crab & A0535+26 from Earth occultation. j = Used TTE binned at 16ms.
Byte-by-byte Description of file: table[45].dat
Bytes Format Units Label Explanations
1- 2 A2 --- --- [bn] 3- 11 I09 --- ID Trigger identifier (bnYYMMDDNNN) 13- 20 E8.2 mJ/m2 Fluence ? Fluence; in erg/cm2 22- 29 E8.2 mJ/m2 e_Fluence ? Uncertainty in Fluence 31- 36 F6.2 ph/cm2/s PF64 ? Peak flux with 64ms binning 38- 42 F5.2 ph/cm2/s e_PF64 ? Uncertainty in PF64 44- 49 F6.2 ph/cm2/s PF256 ? Peak flux with 256ms binning 51- 54 F4.2 ph/cm2/s e_PF256 ? Uncertainty in PF256 56- 61 F6.2 ph/cm2/s PF1024 ? Peak flux with 1024ms binning 63- 66 F4.2 ph/cm2/s e_PF1024 ? Uncertainty in PF1024
History: From electronic version of the journal References: Goldstein et al. Companion paper. 2012ApJS..199...19G
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 23-Mar-2012
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

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