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- W1566141856 abstract "SGR 1806-20 turned active late 1996, and in response to this reactivation we triggered our target-of-opportunity observations. The results were extremely rewarding. We found a periodic modulation of the persistent X-ray signal, at a period of 7.47 seconds. We combined our data with similar data obtained by Dr T. Strohmayer, which confirmed the presence of the pulsations, and gave evidence for a spin down on a time scale of some 1000 years. We retrieved the pulsations in archival ASCA data, obtained in 1993 and 1995, and confirmed the long-term spin down of the neutron star in this system. The properties of SGR 1806-20 lead to the conclusion that it is a mgnetar, i.e., a neutron star with a magnetic field some 2 to 3 orders of magnitude higher than those of young radio pulsars and binary X-ray pulsars." @default.
- W1566141856 created "2016-06-24" @default.
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- W1566141856 date "1998-01-01" @default.
- W1566141856 modified "2023-09-27" @default.
- W1566141856 title "TOO Observations of Soft Gamma Repeaters" @default.
- W1566141856 hasPublicationYear "1998" @default.
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