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Swift-XRT spectra of GRB 091026

Last updated after receiving ObsID 00373871000, version 13

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 85 to 29913 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+230 s

N_H (Galactic)	1.26 × 10²¹ cm^-2
N_H (intrinsic)	3.1 (+0.4, -0.4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.85 (+0.08, -0.08)
Flux (0.3-10 keV) (Observed)	5.59 (+0.25, -0.24) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.1 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.22 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.14 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	598.13 (626)
Spectrum exposure	323 s

PC mode. Mean photon arrival: T0+4837 s

N_H (Galactic)	1.26 × 10²¹ cm^-2
N_H (intrinsic)	3.9 (+0.9, -0.8) × 10²¹ cm^-2
z of absorber	0
Photon index	1.93 (+0.15, -0.15)
Flux (0.3-10 keV) (Observed)	1.89 (+0.16, -0.15) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.97 (+0.27, -0.23) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.26 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.69 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	365.20 (384)
Spectrum exposure	5.1 ks

Late Time spectrum (T0 + 5509 to 29913 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11216 s

N_H (Galactic)	1.26 × 10²¹ cm^-2
N_H (intrinsic)	5.0 (+1.6, -1.4) × 10²¹ cm^-2
z of absorber	0
Photon index	2.31 (+0.28, -0.26)
Flux (0.3-10 keV) (Observed)	4.6 (+0.6, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.8 (+2.8, -1.7) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.64 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.82 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	178.56 (225)
Spectrum exposure	4.4 ks