SIMBAD references

2006A&A...445..313G - Astronomy and Astrophysics, volume 445313-321 (2006/1-1)

Two years of INTEGRAL monitoring of the soft gamma-ray repeater SGR 1806-20: from quiescence to frenzy.

GOETZ D., MEREGHETTI S., MOLKOV S., HURLEY K., MIRABEL I.F., SUNYAEV R., WEIDENSPOINTNER G., BRANDT S., DEL SANTO M., FEROCI M., GOEGUES E., VON KIENLIN A., VAN DER KLIS M., KOUVELIOTOU C., LUND N., PIZZICHINI G., UBERTINI P., WINKLER C. and WOODS P.M.

Abstract (from CDS):

SGR 1806-20 has been observed for more than 2 years with the INTEGRAL satellite. In this period the source went from a quiescent state into a very active one culminating in a giant flare on December 27, 2004. Here we report on the properties of all the short bursts detected with INTEGRAL before the giant flare. We derive their number-intensity distribution and confirm the hardness-intensity correlation for the bursts found by Goetz et al. (2004A&A...417L..45G). Our sample includes a very bright outburst that occurred on October 5, 2004, during which over one hundred bursts were emitted in 10 minutes, involving an energy release of 3x1042erg. We present a detailed analysis of it and discuss our results in the framework of the magnetar model.

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Journal keyword(s): gamma rays: bursts - gamma rays: observations - stars: pulsars: general - stars: pulsars: individual: SGR 1806-20

Simbad objects: 3

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