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Swift-XRT spectra of GRB 090831C

Last updated after receiving ObsID 00361489001, version 11

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 128 to 87964 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+11642 s

N_H (Galactic)	4.66 × 10²¹ cm^-2
N_H (intrinsic)	9.7 (+19.2, -9.7) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.84 (+0.25, -0.23)
Flux (0.3-10 keV) (Observed)	1.15 (+0.16, -0.14) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.73 (+0.29, -0.19) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.62 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.99 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	235.75 (275)
Spectrum exposure	37.0 ks

Late Time spectrum (T0 + 4447 to 87964 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+31390 s

N_H (Galactic)	4.66 × 10²¹ cm^-2
N_H (intrinsic)	0 (+8.13 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.86 (+0.26, -0.19)
Flux (0.3-10 keV) (Observed)	3.0 (+0.7, -0.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.0 (+0.9, -0.9) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.17 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.62 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	116.28 (140)
Spectrum exposure	35.9 ks