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Swift-XRT spectra of GRB 050408

Last updated after receiving ObsID 00020004012, version 62

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.236 (GCN 3201)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 2553 to 71714 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+16451 s

N_H (Galactic)	1.87 × 10²⁰ cm^-2
N_H (intrinsic)	1.8 (+0.4, -0.4) × 10²² cm^-2
z of absorber	1.236
Photon index	2.09 (+0.15, -0.14)
Flux (0.3-10 keV) (Observed)	4.2 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.4 (+0.6, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.34 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.07 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	292.84 (323)
Spectrum exposure	10.1 ks

Late Time spectrum (T0 + 6184 to 71714 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+18394 s

N_H (Galactic)	1.87 × 10²⁰ cm^-2
N_H (intrinsic)	1.7 (+0.4, -0.4) × 10²² cm^-2
z of absorber	1.236
Photon index	2.10 (+0.16, -0.15)
Flux (0.3-10 keV) (Observed)	3.8 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.7 (+0.6, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.34 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.03 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	290.76 (301)
Spectrum exposure	9.8 ks