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SAXGRBMGRB - BeppoSAX/GRBM Gamma-Ray Burst Catalog

HEASARC
Archive

Overview

This is the catalog of gamma-ray bursts (GRBs) detected with the Gamma Ray Burst Monitor (GRBM) aboard the BeppoSAX satellite. It includes 1082 GRBs with 40 - 700 keV fluences in the range from 1.3 x 10-7 to 4.5 x 10-4 erg/cm2, and 40 - 700 keV peak fluxes from 3.7x10-8 to 7.0 x 10-5 erg/cm2/s. Some relevant parameters of each GRB are reported in the catalog.

Catalog Bibcode

2009ApJS..180..192F

References

The Gamma-Ray Burst catalog obtained with the Gamma-Ray Burst Monitor
aboard BeppoSAX.
    Frontera F., Guidorzi C., Montanari E., Rossi F., Costa E., Feroci M.,
    Calura F., Rapisarda M., Amati L., Carturan D., Cinti M.N., Dal Fiume D.,
    Nicastro L., Orlandini M.
    <Astrophys. J. Suppl. Ser. 180, 192 (2009)>
    =2009ApJS..180..192F        (SIMBAD/NED BibCode)

Provenance

This table was created by the HEASARC in January 2010 based on the CDS catalog J/ApJS/180/192, file table2.dat.

Parameters

Name
The gamma-ray burst designation. The GRB name is formed by prexix 'GRB' followed by the date of the detection, in the form YYDDMM. e.g., 'GRB 960802'. In case of more than one burst in a day, a letter A, B, C is added to distinguish the specific bursts.

RA
The Right Ascension of the GRB in the selected equinox, when known. This was given in J2000.0 decimal degrees to a precision of 0.01 degrees in the original table, although the true positional accuracy (see the error_radius parameter) is typically much larger than this.

Dec
The Declination of the GRB in the selected equinox, when known. This was given in J2000.0 decimal degrees to a precision of 0.01 degrees in the original table, although the true positional accuracy (see the error_radius parameter) is typically much larger than this.

LII
The Galactic Longitude of the GRB, when known.

BII
The Galactic Latitude of the GRB, when known.

Error_Radius
The mean positional error radius of the GRB, in degrees.

Earth_Limb_Elevation
The elevation angle of the GRB (for those with already known positions) with respect to the earth limb, in degrees.

Ref_Position
The instrument/catalog reference that provided the best GRB coordinates, as follows:

          G = BeppoSAX GRBM
          W = BeppoSAX Wide Field Cameras
          A = ASM aboard RXTE
         4B = BATSE 4B catalog (Paciesas et al., 1999, CDS Cat. <IX/20>)
          H = HETE 2
          K = Kommers catalog (Kommers et al., 2001, CDS Cat. <J/ApJS/134/385>)
          I = Inter-Planetary Network
          P = RXTE PCA
          S = Stern catalog (Stern et al., 2001, CDS Cat. <J/ApJ/563/80>)
  

Time
The GRB trigger time in UT, given to a precision of 1 second.

High_Res_Flag
This flag parameter indicates whether ('Y') or not ('N') high time resolution data exists for the particular GRB.

T_Other
The time elapsed from the earliest GRB onset above a 2-sigma threshold to its final disappearance below the 2-sigma threshold, in seconds.

T_Other_Error
The mean error in the GRB duration above 2-sigma, t_other, in seconds.

T_Above_Fraction
The integrated time over which the GRB emission level was above 2 sigma, in seconds.

T_Above_Fraction_Error
The mean error in the integrated time over which the GRB emission level was above 2 sigma, in seconds.

T_Above_Num_Intervals
The number of time intervals in which the the GRB emission level was above 2 sigma.

T90
The time interval during which the GRB integrated counts increased from 5% to 95% of the total counts, t_90, in seconds, as defined by the BATSE team (Kouveliotou et al. 1993, ApJ, 413, L101).

T90_Error
The mean error in t_90 for the GRB, in seconds.

Fluence
The 40 - 700 keV fluence of the GRB, in erg/cm2.

Fluence_Error
The mean error in the 40 - 700 keV fluence of the GRB, in erg/cm2.

Peak_Flux
The 40 - 700 keV peak flux of the GRB, in erg/cm2/s.

Peak_Flux_Error
The mean error in the 40 - 700 keV peak flux of the GRB, in erg/cm2/s.

Photon_Index
The best-fit photon index Gamma of the 2-channel (40 - 700 keV and > 100 keV) background-subtracted spectral data of the GRB, derived with the assumption of a power-law spectrum.

Photon_Index_Error
The mean error in the best-fit photon index Gamma.

Detection_Unit_1
The GRBM detection unit used to derive the time duration parameters (t_90, t_other and t_above_fraction) of the GRB. This unit provided the light curve with the best signal-to-noise ratio.

Detection_Unit_2
The GRBM detection unit used for the determination of the GRB fluence, peak flux and spectral hardness. When it was possible to improve the statistical quality of the results, the signal from another unit (detection_unit_3) was added in.

Detection_Unit_3
The third GRBM detection unit, used in a number of cases to improve the statistical quality of the results,

Rebinning_Factor
The rebinning factor of the default light curve which was adopted to derive the reported parameters of the GRB. The default light curves were: 1 s light curves in the case of long GRB (t_90 > 2s), and 7.8125 ms in the case of short GRBs.


Contact Person

Questions regarding the SAXGRBMGRB database table can be addressed to the HEASARC User Hotline.

Page Author: Browse Software Development Team
Last Modified: 17-Feb-2010