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Swift-XRT spectra of GRB 090929B

Last updated after receiving ObsID 00371050008, version 12

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 90 to 133185 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+147 s

N_H (Galactic)	6.48 × 10²⁰ cm^-2
N_H (intrinsic)	2.25 (+0.30, -0.28) × 10²¹ cm^-2
z of absorber	0
Photon index	1.34 (+0.05, -0.05)
Flux (0.3-10 keV) (Observed)	4.53 (+0.14, -0.14) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.24 (+0.12, -0.10) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	5.41 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.26 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	780.87 (751)
Spectrum exposure	100 s

PC mode. Mean photon arrival: T0+28706 s

N_H (Galactic)	6.48 × 10²⁰ cm^-2
N_H (intrinsic)	10 (+4, -4) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.81 (+0.13, -0.12)
Flux (0.3-10 keV) (Observed)	3.07 (+0.25, -0.23) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.80 (+0.23, -0.22) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.83 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.74 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	330.54 (382)
Spectrum exposure	20.3 ks

Late Time spectrum (T0 + 4002 to 133185 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+31118 s

N_H (Galactic)	6.48 × 10²⁰ cm^-2
N_H (intrinsic)	1.1 (+0.5, -0.4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.87 (+0.14, -0.13)
Flux (0.3-10 keV) (Observed)	2.69 (+0.23, -0.21) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.43 (+0.23, -0.21) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.73 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.77 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	312.81 (363)
Spectrum exposure	19.7 ks