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Uhuru observations of the Norma X-ray bursterFour X-ray bursts consistent with a single source in Norma are reported which were discovered by reexamining Uhuru data obtained between 1970 and 1973. The temporal and spectral characteristics of the bursts are described and shown to be similar to those displayed by bursts from the globular cluster NGC 6224. An error box of the source location is given, and it is found that both the position and intensity of the four bursts are consistent with those of 10 bursts detected by the Vela satellites in 1976. It is concluded that the source is the same as that observed by the Vela and is an X-ray burster with characteristics similar to those of certain other bursters. XB 1608-52 is suggested as the designation of this burster, possible burst models are considered, and it is noted that the error box of the present source contains an identified globular cluster.
Document ID
19770027909
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Grindlay, J.
(Harvard Coll. Observatory Cambridge, MA, United States)
Gursky, H.
(Harvard College Observatory and Smithsonian Astrophysical Observatory Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
October 15, 1976
Publication Information
Publication: Astrophysical Journal
Volume: 209
Subject Category
Astrophysics
Accession Number
77A10761
Funding Number(s)
CONTRACT_GRANT: NAS5-20048
CONTRACT_GRANT: NAS5-23282
Distribution Limits
Public
Copyright
Other

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