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Swift-XRT spectra of GRB 080604

Last updated after receiving ObsID 00313116003, version 17

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.42 (GCN 7818)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 125 to 40235 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+211 s

N_H (Galactic)	4.46 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+4.29 × 10²⁰, -0) cm^-2
z of absorber	1.42
Photon index	2.01 (+0.07, -0.06)
Flux (0.3-10 keV) (Observed)	2.65 (+0.14, -0.11) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.97 (+0.13, -0.12) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.13 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.51 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	377.25 (437)
Spectrum exposure	256 s

PC mode. Mean photon arrival: T0+3740 s

N_H (Galactic)	4.46 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+2.63 × 10²¹, -0) cm^-2
z of absorber	1.42
Photon index	1.572 (+0.178, -0.099)
Flux (0.3-10 keV) (Observed)	1.90 (+0.19, -0.23) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.01 (+0.21, -0.21) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.13 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.39 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	213.04 (248)
Spectrum exposure	16.5 ks

Late Time spectrum (T0 + 4981 to 40235 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22956 s

N_H (Galactic)	4.46 × 10²⁰ cm^-2
N_H (intrinsic)	2.8 (+9.6, -2.8) × 10²¹ cm^-2
z of absorber	1.42
Photon index	2.1 (+0.6, -0.5)
Flux (0.3-10 keV) (Observed)	1.6 (+0.7, -0.5) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.0 (+0.6, -0.5) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.17 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.85 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	48.70 (47)
Spectrum exposure	15.2 ks