The First Swift BAT Gamma-Ray Burst Catalog

Abstract

We present the first Swift Burst Alert Telescope (BAT) catalog of gamma-ray bursts (GRBs), which contains bursts detected by the BAT between 2004 December 19 and 2007 June 16. This catalog (hereafter BAT1 catalog) contains burst trigger time, location, 90% error radius, duration, fluence, peak flux, and time averaged spectral parameters for each of 237 GRBs, as measured by the BAT. The BAT-determined position reported here is within 1.75' of the Swift X-ray Telescope (XRT)-determined position for 90% of these GRBs. The BAT T_90 and T_50 durations peak at 80 and 20 seconds, respectively. From the fluence-fluence correlation, we conclude that about 60% of the observed peak energies, Epeak, of BAT GRBs could be less than 100 keV. We confirm that GRB fluence to hardness and GRB peak flux to hardness are correlated for BAT bursts in analogous ways to previous missions' results. The correlation between the photon index in a simple power-law model and Epeak is also confirmed. We also report the current status for the on-orbit BAT calibrations based on observations of the Crab Nebula.

63 pages, 23 figures, Accepted in ApJS, Corrected for the BAT ground position, the image significance, and the error radius of GRB 051105, Five machine-readable tables are available at http://swift.gsfc.nasa.gov/docs/swift/results/bat1_catalog/

References in corpus (1)

• Making a Short Gamma-Ray Burst from a Long one: Implications for the Nature of GRB 060614

Cited by in corpus (17)

• A Comparison of the Afterglows of Short- and Long-Duration Gamma-Ray Bursts
• The First Swift Ultra-Violet/Optical Telescope GRB Afterglow Catalog
• A statistical study of gamma-ray burst afterglows measured by the Swift Ultra-violet Optical Telescope
• Correlations of Prompt and Afterglow Emission in Swift Long and Short Gamma Ray Bursts
• Looking Into the Fireball: ROTSE-III and Swift Observations of Early GRB Afterglows
• Precursors in Swift Gamma Ray Bursts with redshift
• Peak energy of the prompt emission of long Gamma Ray Bursts vs their fluence and peak flux
• Classification of Swift's gamma-ray bursts
• H.E.S.S. observations of gamma-ray bursts in 2003-2007
• Short Gamma Ray Bursts: a bimodal origin?
• The updated spectral catalogue of INTEGRAL Gamma-Ray Bursts
• PROMPT Observations of the Early-Time Optical Afterglow of GRB 060607A
• Evidence for energy injection and a fine-tuned central engine at optical wavelengths in GRB 070419A
• Testing the E_p,i - L_p,iso - T_0.45 correlation on a BeppoSAX and Swift sample of gamma-ray bursts
• Statistical studies of optically dark gamma-ray bursts in the Swift era
• GeV emission from Gamma-Ray Burst afterglows
• Analysis of the Swift Gamma-Ray Bursts duration