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Record 1 of 1138
The Swift-BAT Hard X-Ray Transient Monitor
External Online Source: doi:10.1088/0067-0049/209/1/14
Author and Affiliation:
Krimm, H. A.(Universities Space Research Association, Greenbelt, MD, United States)
Holland, S. T.(Sigma Space Corp., Lanham, MD, United States)
Corbet, R. H. D.(Maryland Univ. Baltimore County, Dept. of Physics and Center for Space Sciences and Tech., Baltimore, MD, United States)
Pearlman, A. B.(Maryland Univ. Baltimore County, Dept. of Physics and Center for Space Sciences and Tech., Baltimore, MD, United States)
Romano, P.(Istituto di Astrofisica Spaziale e Fisica Cosmica (INAF-IASF), Palermo, Italy)
Kennea, J. A.(Pennsylvania State Univ., Dept. of Astronomy and Astrophysics, University Park, PA, United States)
Bloom, J. S.(California Univ., Dept. of Astronomy, Berkeley, CA, United States)
Barthelmy, S. D.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Baumgartner, W. H.(Maryland Univ. Baltimore County, Dept. of Physics and Center for Space Sciences and Tech., Baltimore, MD, United States)
Cummings, J. R.(Maryland Univ. Baltimore County, Dept. of Physics and Center for Space Sciences and Tech., Baltimore, MD, United States) Show more authors
Abstract: The Swift/Burst Alert Telescope (BAT) hard X-ray transient monitor provides near real-time coverage of the X-ray sky in the energy range 15-50 keV. The BAT observes 88% of the sky each day with a detection sensitivity of 5.3 mCrab for a full-day observation and a time resolution as fine as 64 s. The three main purposes of the monitor are (1) the discovery of new transient X-ray sources, (2) the detection of outbursts or other changes in the flux of known X-ray sources, and (3) the generation of light curves of more than 900 sources spanning over eight years. The primary interface for the BAT transient monitor is a public Web site. Between 2005 February 12 and 2013 April 30, 245 sources have been detected in the monitor, 146 of them persistent and 99 detected only in outburst. Among these sources, 17 were previously unknown and were discovered in the transient monitor. In this paper, we discuss the methodology and the data processing and filtering for the BAT transient monitor and review its sensitivity and exposure.We provide a summary of the source detections and classify them according to the variability of their light curves. Finally, we review all new BAT monitor discoveries. For the new sources that are previously unpublished, we present basic data analysis and interpretations.
Publication Date: Oct 25, 2013
Document ID:
20160005329
(Acquired Apr 26, 2016)
Subject Category: ASTROPHYSICS; ASTRONOMY
Report/Patent Number: GSFC-E-DAA-TN16029
Document Type: Journal Article
Publication Information: The Astrophysical Journal Supplement Series (e-ISSN 1538-4365); Volume 209; Issue 1; 14; (SEE 20140010249)
Publisher Information: The American Astronomical Society
Contract/Grant/Task Num: NNG11HP14C; NAS5-00136; NNG06EO90A; NNX09AN71A; NNX09AU85G; NNX12AD32G; NNX12AE57G; NNX13AC75G
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD United States
Description: 33p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: SWIFT OBSERVATORY; X RAY TELESCOPES; X RAY ASTRONOMY; X RAY SOURCES; LIGHT CURVE; DATA PROCESSING; REAL TIME OPERATION; VARIABILITY; SENSITIVITY
Other Descriptors: BLACK HOLE PHYSICS; PULSARS: GENERAL; SURVEYS AEURO" X-RAYS:
Availability Source: Other Sources
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