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Discovery of a New Soft Gamma Repeater, SGR 1627-41We report the discovery of a new soft gamma repeater (SGR), SGR 1627-41, and present BATSE observations of the burst emission and BeppoSAX Narrow-Field Instrument observations of the probable persistent X-ray counterpart to this SGR. All but one burst spectrum are well fit by an optically thin thermal bremsstrahlung model with kT values between 25 and 35 keV. The spectrum of the X-ray counterpart, SAX J1635.8-4736, is similar to that of other persistent SGR X-ray counterparts. We find weak evidence for a periodic signal at 6.41 s in the light curve for this source. Like other SGRs, this source appears to be associated with a young supernova remnant, G337.0-0.1. Based upon the peak luminosities of bursts observed from this SGR, we find a lower limit on the dipole magnetic field of the neutron star of B(sub dipole) approximately > 5 x 10(exp 14) G.
Document ID
19990116089
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Woods, Peter M.
(Alabama Univ. Huntsville, AL United States)
Kouveliotou, Chryssa
(Universities Space Research Association United States)
VanParadijs, Jan
(Alabama Univ. Huntsville, AL United States)
Hurley, Kevin
(California Univ. Berkeley, CA United States)
Kippen, R. Marc
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Finger, Mark H.
(Universities Space Research Association United States)
Briggs, Michael S.
(Alabama Univ. Huntsville, AL United States)
Dieters, Stefan
(Alabama Univ. Huntsville, AL United States)
Fishman, Gerald J.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
July 10, 1999
Publication Information
Publication: Astrophysical Journal
Publisher: American Astronomical Society
Volume: 519
Subject Category
Astronomy
Funding Number(s)
CONTRACT_GRANT: NAG5-3764
CONTRACT_GRANT: NAG5-7808
CONTRACT_GRANT: NAG5-3674
Distribution Limits
Public
Copyright
Other

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