ar X iv : a st ro - p h / 05 05 49 1 v 1 2 4 M ay 2 00 5 The Highest Magnetic Fields in the Universe : Anomalous X - Ray Pulsars
نویسنده
چکیده
In the last few years it has been recognized that two apparently distinct classes of peculiar high-energy sources are actually related and can be explained as young neutron stars with magnetic fields as high as 10 14 –10 15 Gauss. One of these " magnetars " , SGR 1806–20, has recently emitted the most powerful giant flare ever recorded. The high-energy observations of SGR 1806–20 carried out with XMM-Newton and INTEGRAL in the past two years showed a long term trend of increasing activity preceding the 2004 December 27 event. INTEGRAL data of this giant flare provided unique evidence for hard X-ray emission lasting about one hour after the burst onset, possibly due to the interaction of mildly relativistic ejecta with the circumstellar medium.
منابع مشابه
ar X iv : a st ro - p h / 05 05 55 5 v 1 2 7 M ay 2 00 5 Pulsars as Tools for Fundamental Physics & Astrophysics
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