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SGR J1745-29: Swift Discovery and Monitoring of a New SGR Near Sgr A*Starting in 2013 February, Swift has been performing short daily monitoring observations of the G2 gas cloud near Sgr A* with the X-Ray Telescope to determine whether the cloud interaction leads to an increase in the flux from the Galactic center. On 2013 April 24 Swift detected an order of magnitude rise in the X-ray flux from the region near Sgr A*. Initially thought to be a flare from Sgr A*, detection of a short hard X-ray burst from the same region by the Burst Alert Telescope suggested that the flare was from an unresolved new Soft Gamma Repeater, SGR J1745-29. Here we present the discovery of SGR J1745-29 by Swift, including analysis of data before, during, and after the burst. We cover the entire light-curve of the SGR outburst so far, from discovery through to the source entering a Swift Sun constraint in November 2013. Thanks to the interest in G2 and its location near the Galactic Center, SGR J1745-29 has become one of the best monitoring SGRs in outburst yet seen.
Document ID
20140008807
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Kennea, Jamie A.
(Pennsylvania State Univ. State College, PA, United States)
Burrows, David N.
(Pennsylvania State Univ. State College, PA, United States)
Kouveliotou, Chryssa
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Palmer, David
(Los Alamos National Lab. NM, United States)
Kaneko, Yuki
(Sabanci Univ. Istanbul, Turkey)
Evans, Phil
(Leicester Univ. United Kingdom)
Degenaar, Nathalie
(Michigan Univ. Hospitals Ann Arbor, MI, United States)
Reynolds, Mark
(Michigan Univ. Hospitals Ann Arbor, MI, United States)
Miller, Jon M.
(Michigan Univ. Hospitals Ann Arbor, MI, United States)
Wijnands, Rudy
(Amsterdam Univ. Netherlands)
Mori, Kaya
(Columbia Univ. New York, NY, United States)
Gehrels, Neil
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
July 8, 2014
Publication Date
January 5, 2014
Subject Category
Astronomy
Report/Patent Number
M14-3368
Meeting Information
Meeting: American Astronomical Society (AAS) Meeting
Location: Washington, DC
Country: United States
Start Date: January 5, 2014
End Date: January 9, 2014
Sponsors: American Astronomical Society
Distribution Limits
Public
Copyright
Public Use Permitted.
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