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Swift-XRT spectra of GRB 130925A

Last updated after receiving ObsID 00571830075, version 19

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 0.347 (GCN 15249)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 151 to 40413 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+3424 s

N_H (Galactic)	1.75 × 10²⁰ cm^-2
N_H (intrinsic)	2.62 (+0.04, -0.04) × 10²² cm^-2
z of absorber	0.347
Photon index	1.741 (+0.015, -0.015)
Flux (0.3-10 keV) (Observed)	3.354 (+0.022, -0.022) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.47 (+0.05, -0.05) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	5.67 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	9.25 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	1393.17 (960)
Spectrum exposure	3.2 ks

PC mode. Mean photon arrival: T0+16172 s

N_H (Galactic)	1.75 × 10²⁰ cm^-2
N_H (intrinsic)	3.08 (+0.30, -0.29) × 10²² cm^-2
z of absorber	0.347
Photon index	2.58 (+0.14, -0.13)
Flux (0.3-10 keV) (Observed)	8.6 (+0.4, -0.4) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.1 (+0.6, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.08 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.48 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	469.18 (507)
Spectrum exposure	5.0 ks

Late Time spectrum (T0 + 5502 to 40413 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17158 s

N_H (Galactic)	1.75 × 10²⁰ cm^-2
N_H (intrinsic)	3.2 (+0.3, -0.3) × 10²² cm^-2
z of absorber	0.347
Photon index	2.68 (+0.14, -0.14)
Flux (0.3-10 keV) (Observed)	7.9 (+0.4, -0.4) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.3 (+0.7, -0.5) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.96 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.66 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	457.48 (486)
Spectrum exposure	5.0 ks