We present the results of a thorough timing and spectral analysis of the BeppoSAX Gamma-Ray Burst Monitor data of the two large flares from SGR1900+14: the giant one of August 27, 1998 and the intermediate one of April 18, 2001. We compare the two flares, showing interesting common spectral and temporal properties, despite their apparent different profiles and fluences. New findings concerning the presence of timing noise and the time-averaged energy spectra are discussed and interpreted in the light of the magnetar model.
The two large flares from SGR1900+14 observed with the BeppoSAX Gamma-Ray Burst Monitor: new results
GUIDORZI, Cristiano;FRONTERA, Filippo;MONTANARI, Enrico
2004
Abstract
We present the results of a thorough timing and spectral analysis of the BeppoSAX Gamma-Ray Burst Monitor data of the two large flares from SGR1900+14: the giant one of August 27, 1998 and the intermediate one of April 18, 2001. We compare the two flares, showing interesting common spectral and temporal properties, despite their apparent different profiles and fluences. New findings concerning the presence of timing noise and the time-averaged energy spectra are discussed and interpreted in the light of the magnetar model.File in questo prodotto:
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