Suzaku Observations of SGR 1900+14 and SGR 1806-20

Yujin E. Nakagawa; Tatehiro Mihara; Atsumasa Yoshida; Kazutaka Yamaoka; Satoshi Sugita; Toshio Murakami; Daisuke Yonetoku; Motoko Suzuki; Motoki Nakajima; Makoto Tashiro; Kazuhiro Nakazawa

doi:10.1093/pasj/61.sp1.s387

arXiv · 0808.3846

Suzaku Observations of SGR 1900+14 and SGR 1806-20

Yujin E. Nakagawa·Tatehiro Mihara·Atsumasa Yoshida·Kazutaka Yamaoka·Satoshi Sugita·Toshio Murakami·Daisuke Yonetoku·Motoko Suzuki·Motoki Nakajima·Makoto Tashiro·Kazuhiro Nakazawa

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Abstract

Spectral and timing studies of Suzaku ToO observations of two SGRs, 1900+14 and 1806-20, are presented. The X-ray quiescent emission spectra were well fitted by a two blackbody function or a blackbody plus a power law model. The non-thermal hard component discovered by INTEGRAL was detected by the PIN diodes and its spectrum was reproduced by the power law model reported by INTEGRAL. The XIS detected periodicity P = 5.1998+/-0.0002 s for SGR 1900+14 and P = 7.6022+/-0.0007 s for SGR 1806-20. The pulsed fraction was related to the burst activity for SGR 1900+14.

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Yujin E. Nakagawa, Tatehiro Mihara, Atsumasa Yoshida, Kazutaka Yamaoka, Satoshi Sugita, Toshio Murakami, Daisuke Yonetoku, Motoko Suzuki, Motoki Nakajima, Makoto Tashiro, Kazuhiro Nakazawa. 2008-08-28. Suzaku Observations of SGR 1900+14 and SGR 1806-20. https://doi.org/10.1093/pasj%2F61.sp1.s387

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