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Swift-XRT spectra of GRB 050820B

Last updated after receiving ObsID 00151334000, version 15.

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Time-averaged spectrum (T0 + 2373 to 49384 s)

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PC mode spectrum of GRB 050820B

PC mode. Mean photon arrival: T0+5367 s

N_H (Galactic)	8.5 × 10²⁰ cm^-2
N_H (intrinsic)	1.5 (+2.5, -1.5) × 10²¹ cm^-2
z of absorber	0
Photon index	1.98 (+0.67, -0.56)
Flux (0.3-10 keV) (Observed)	5.1 (+1.7, -1.3) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.6 (+2.2, -1.8) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.3 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.4 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	78.10 (85)
Exposure time	8.1 ks

Late Time spectrum (T0 + 8050 to 49384 s)

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PC mode spectrum of GRB 050820B

PC mode. Mean photon arrival: T0+12806 s

N_H (Galactic)	8.5 × 10²⁰ cm^-2
N_H (intrinsic)	1.4 (+23.0, -1.4) × 10²¹ cm^-2
z of absorber	0
Photon index	2.18 (+2.51, -0.69)
Flux (0.3-10 keV) (Observed)	1.31 (+0.92, -0.62) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.18 (+3.09, -0.95) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.7 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.2 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	26.69 (21)
Exposure time	7.2 ks