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Swift-XRT spectra of GRB 091104

Last updated after receiving ObsID 00374875002, version 6

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 137 to 57766 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+201 s

N_H (Galactic)	1.81 × 10²⁰ cm^-2
N_H (intrinsic)	9.9 (+2.2, -2.1) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.13 (+0.09, -0.09)
Flux (0.3-10 keV) (Observed)	6.7 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.8 (+0.3, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.09 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.05 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	455.91 (486)
Spectrum exposure	162 s

PC mode. Mean photon arrival: T0+4283 s

N_H (Galactic)	1.81 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+1.98 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	2.25 (+0.18, -0.17)
Flux (0.3-10 keV) (Observed)	1.46 (+0.20, -0.17) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.49 (+0.27, -0.17) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	2.89 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.94 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	127.30 (140)
Spectrum exposure	10.5 ks

Late Time spectrum (T0 + 4501 to 57766 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+35386 s

N_H (Galactic)	1.81 × 10²⁰ cm^-2
N_H (intrinsic)	1.2 (+6.7, -1.2) × 10²¹ cm^-2
z of absorber	0
Photon index	1.86 (+1.53, -0.77)
Flux (0.3-10 keV) (Observed)	1.43 (+1.08, -0.65) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.76 (+1.96, -0.60) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.65 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.51 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	27.45 (23)
Spectrum exposure	9.9 ks