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Swift-XRT spectra of GRB 130831B

Last updated after receiving ObsID 00568855001, version 9

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 136 to 35427 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+5370 s

N_H (Galactic)	7.84 × 10²⁰ cm^-2
N_H (intrinsic)	1.1 (+0.5, -0.5) × 10²¹ cm^-2
z of absorber	0
Photon index	1.92 (+0.15, -0.14)
Flux (0.3-10 keV) (Observed)	1.261 (+0.109, -0.100) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.66 (+0.12, -0.11) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.62 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.76 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	343.90 (356)
Spectrum exposure	6.8 ks

Late Time spectrum (T0 + 5104 to 35427 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12891 s

N_H (Galactic)	7.84 × 10²⁰ cm^-2
N_H (intrinsic)	8 (+8, -7) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.77 (+0.23, -0.22)
Flux (0.3-10 keV) (Observed)	4.1 (+0.6, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.0 (+0.6, -0.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.85 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.71 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	199.41 (227)
Spectrum exposure	5.6 ks