skip to main content

SciTech ConnectSciTech Connect

Title: THE 70 MONTH SWIFT-BAT ALL-SKY HARD X-RAY SURVEY

We present the catalog of sources detected in 70 months of observations with the Burst Alert Telescope (BAT) hard X-ray detector on the Swift gamma-ray burst observatory. The Swift-BAT 70 month survey has detected 1171 hard X-ray sources (more than twice as many sources as the previous 22 month survey) in the 14-195 keV band down to a significance level of 4.8{sigma}, associated with 1210 counterparts. The 70 month Swift-BAT survey is the most sensitive and uniform hard X-ray all-sky survey and reaches a flux level of 1.03 Multiplication-Sign 10{sup -11} erg s{sup -1} cm{sup -2} over 50% of the sky and 1.34 Multiplication-Sign 10{sup -11} erg s{sup -1} cm{sup -2} over 90% of the sky. The majority of new sources in the 70 month survey continue to be active galactic nuclei, with over 700 in the catalog. As part of this new edition of the Swift-BAT catalog, we also make available eight-channel spectra and monthly sampled light curves for each object detected in the survey in the online journal and at the Swift-BAT 70 month Web site.
Authors:
; ; ; ; ;  [1] ;  [2] ;  [3]
  1. NASA/Goddard Space Flight Center, Astrophysics Science Division, Greenbelt, MD 20771 (United States)
  2. Department of Astronomy, University of Maryland, College Park, MD 20742 (United States)
  3. X-Ray and Observational Astronomy Group/Department of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH (United Kingdom)
Publication Date:
OSTI Identifier:
22140337
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal, Supplement Series; Journal Volume: 207; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CATALOGS; COSMIC GAMMA BURSTS; GALAXY NUCLEI; HARD X RADIATION; KEV RANGE; SPECTRA; TELESCOPES; X-RAY SOURCES