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Swift-XRT spectra of GRB 081028

Last updated after receiving ObsID 00332851011, version 17

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 3.038 (GCN 8434)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 196 to 70262 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+401 s

N_H (Galactic)	4.39 × 10²⁰ cm^-2
N_H (intrinsic)	8.4 (+1.5, -1.5) × 10²¹ cm^-2
z of absorber	3.038
Photon index	1.792 (+0.023, -0.023)
Flux (0.3-10 keV) (Observed)	1.726 (+0.028, -0.027) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.953 (+0.025, -0.025) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	3.62 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.10 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	747.36 (801)
Spectrum exposure	671 s

PC mode. Mean photon arrival: T0+31061 s

N_H (Galactic)	4.39 × 10²⁰ cm^-2
N_H (intrinsic)	5 (+4, -4) × 10²¹ cm^-2
z of absorber	3.038
Photon index	1.93 (+0.07, -0.07)
Flux (0.3-10 keV) (Observed)	4.89 (+0.22, -0.21) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.58 (+0.20, -0.20) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.37 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.84 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	480.62 (486)
Spectrum exposure	29.3 ks

Late Time spectrum (T0 + 4050 to 70262 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+31061 s

N_H (Galactic)	4.39 × 10²⁰ cm^-2
N_H (intrinsic)	5 (+4, -4) × 10²¹ cm^-2
z of absorber	3.038
Photon index	1.93 (+0.07, -0.07)
Flux (0.3-10 keV) (Observed)	4.89 (+0.22, -0.21) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.58 (+0.20, -0.20) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.37 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.84 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	480.62 (486)
Spectrum exposure	29.3 ks