Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-10-15
Astronomy and Astrophysics, Volume 476, Issue 1, December II 2007, pp.321-330
Astronomy and Astrophysics
Astrophysics
Accepted for publication in Astronomy & Astrophysics
Scientific paper
10.1051/0004-6361:20078562
In December 2004, the soft gamma-ray repeater SGR 1806-20 emitted the most powerful giant flare ever observed. This probably involved a large-scale rearrangement of the magnetosphere leading to observable variations in the properties of its X-ray emission. Here we present the results of the first Suzaku observation of SGR 1806-20, together with almost simultaneous observations with XMM-Newton and INTEGRAL. The source seems to have reached a state characterized by a flux close to the pre-flare level and by a relatively soft spectrum. Despite this, SGR 1806-20 remained quite active also after the giant flare, allowing us to study several short bursts observed by Suzaku in the 1-100 keV range. We discuss the broad-band spectral properties of SGR 1806-20, covering both persistent and bursting emission, in the context of the magnetar model, and consider its recent theoretical developments.
Esposito Paolo
Feroci Marco
Gotz Diego
Israel Gian Luca
Kawai Nobuyuki
No associations
LandOfFree
SGR 1806-20 about two years after the giant flare: Suzaku, XMM-Newton and INTEGRAL observations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with SGR 1806-20 about two years after the giant flare: Suzaku, XMM-Newton and INTEGRAL observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SGR 1806-20 about two years after the giant flare: Suzaku, XMM-Newton and INTEGRAL observations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-126779