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Swift-XRT spectra of GRB 050820A

Last updated after receiving ObsID 00151207030, version 39

Data were analysed using HEASOFT version 6.35.2

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The spectral fits assume a redshift: 2.612 (GCN 3833)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 88 to 59291 s)

Download spectral files for Time-averaged spectrum.

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+207 s

N_H (Galactic)	5.22 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+1.15 × 10²¹, -0) cm^-2
z of absorber	2.612
Photon index	1.06 (+0.04, -0.04)
Flux (0.3-10 keV) (Observed)	1.87 (+0.08, -0.07) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.92 (+0.08, -0.06) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	5.68 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.84 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	657.65 (709)
Spectrum exposure	163 s

PC mode. Mean photon arrival: T0+23625 s

N_H (Galactic)	5.22 × 10²⁰ cm^-2
N_H (intrinsic)	3.2 (+2.0, -2.0) × 10²¹ cm^-2
z of absorber	2.612
Photon index	1.88 (+0.04, -0.04)
Flux (0.3-10 keV) (Observed)	1.83 (+0.05, -0.05) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.09 (+0.05, -0.05) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.43 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.92 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	576.48 (638)
Spectrum exposure	22.3 ks

Late Time spectrum (T0 + 4660 to 59291 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+23625 s

N_H (Galactic)	5.22 × 10²⁰ cm^-2
N_H (intrinsic)	3.2 (+2.0, -2.0) × 10²¹ cm^-2
z of absorber	2.612
Photon index	1.88 (+0.04, -0.04)
Flux (0.3-10 keV) (Observed)	1.83 (+0.05, -0.05) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.09 (+0.05, -0.05) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.43 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.92 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	576.48 (638)
Spectrum exposure	22.3 ks