The First Swift BAT Gamma-Ray Burst Catalog

, , , , , , , , , , , , , , , and

© 2008. The American Astronomical Society. All rights reserved. Printed in U.S.A.
, , Citation T. Sakamoto et al 2008 ApJS 175 179 DOI 10.1086/523646

Download Article PDF View article

Article metrics

2627 Total downloads

Share this article

Author affiliations

1 NASA Goddard Space Flight Center, Greenbelt, MD 20771

2 Oak Ridge Associated Universities, P.O. Box 117, Oak Ridge, TN 37831-0117

3 Joint Center for Astrophysics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250

4 Center for Research and Exploration in Space Science and Technology (CRESST), NASA Goddard Space Flight Center, Greenbelt, MD 20771

5 Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545

6 Moxtek, Inc., 452 West 1260 North, Orem, UT 84057

7 Universities Space Research Association, 10211 Wincopin Circle, Suite 500, Columbia, MD 21044-3432

8 Department of Astronomy, University of Maryland, College Park, MD 20742

9 Institute of Space and Astronautical Science, JAXA, Kanagawa 229-8510, Japan

10 Center for Nuclear Studies, Department of Physics, George Washington University, Washington, DC 20052

11 Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154

Dates

  1. Received 2007 July 30
  2. Accepted 2007 September 4
Journal RSS
Create or edit your corridor alerts

What are corridors?opens in new tab

0067-0049/175/1/179

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 the 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 T90 and T50 durations peak at 80 and 20 s, respectively. From the fluence-fluence correlation, we conclude that about 60% of the observed peak energies, Epeakobs, 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 Epeakobs is also confirmed. We also report the current status for the on-orbit BAT calibrations based on observations of the Crab Nebula.

Export citation and abstract BibTeX RIS

Previous article in issue
Next article in issue
Please wait… references are loading.
10.1086/523646