Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Suzaku Observation of the New Soft Gamma Repeater SGR 0501+4516 in
  Outburst   We present the first Suzaku observation of the new Soft Gamma Repeater SGR
0501+4516, performed on 2008 August 26, four days after the onset of bursting
activity of this new member of the magnetar family. The soft X-ray persistent
emission was detected with the X-ray Imaging Spectrometer (XIS) at a 0.5-10 keV
flux of 3.8E-11 erg/s/cm2, with a spectrum well fitted by an absorbed blackbody
plus power-law model. The source pulsation was confirmed at a period of
5.762072+/-0.000002 s, and 32 X-ray bursts were detected by the XIS, four of
which were also detected at higher energies by the Hard X-ray Detector (HXD).
The strongest burst, which occurred at 03:16:16.9 (UTC), was so bright that it
caused instrumental saturation, but its precursor phase, lasting for about 200
ms, was detected successfully over the 0.5-200 keV range, with a fluence of
~2.1E-7 erg/cm2 and a peak intensity of about 89 Crab. The entire burst fluence
is estimated to be ~50 times higher. The precursor spectrum was very hard, and
well modeled by a combination of two blackbodies. We discuss the bursting
activity and X/gamma-ray properties of this newly discovered Soft Gamma
Repeater in comparison with other members of the class.

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The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
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The categories of this paper are: q-bio
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The categories of this paper are: cond-mat
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph