NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Probing the Nature of Short Swift Bursts via Deep INTEGRAL Monitoring of GRB 050925We present results from Swift, XMM-Newton, and deep INTEGRAL monitoring in the region of GRB 050925. This short Swift burst is a candidate for a newly discovered soft gamma-ray repeater (SGR) with the following observational burst properties: 1) galactic plane (b=-0.1 deg) localization, 2) 150 msec duration, and 3) a blackbody rather than a simple power-law spectral shape (with a significance level of 97%). We found two possible X-ray counterparts of GRB 050925 by comparing the X-ray images from Swift XRT and XMM-Newton. Both X-ray sources show the transient behavior with a power-law decay index shallower than -1. We found no hard X-ray emission nor any additional burst from the location of GRB 050925 in approximately 5 Ms of INTEGRAL data. We discuss about the three BATSE short bursts which might be associated with GRB 050925, based on their location and the duration. Assuming GRB 050925 is associated with the H(sub II), regions (W 58) at the galactic longitude of 1=70 deg, we also discuss the source frame properties of GRB 050925.
Document ID
20100031696
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Sakamoto, T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Barbier, L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Barthelmy, S. D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cummings, J. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Fenimore, E. E. (Los Alamos National Lab. NM, United States)
Gehrels, N. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Krimm, H. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Markwardt, C. B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Palmer, D. M. (Los Alamos National Lab. NM, United States)
Parsons, A. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sato, G. (Japan Aerospace Exploration Agency Kanagawa, Japan)
Stamatikos, M. (Oak Ridge Associated Universities, Inc. Oak RIdge, TN, United States)
Tueller, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
July 15, 2010
Subject Category
Astrophysics
Funding Number(s)
CONTRACT_GRANT: NNG06E090A
Distribution Limits
Public
Copyright
Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available