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Swift-XRT spectra of GRB 070508

Last updated after receiving ObsID 00278854009, version 19

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 0.82 (GCN 6398)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 82 to 80858 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+535 s

NH (Galactic)1.21 × 1021 cm-2
NH (intrinsic)1.31 (+0.10, -0.09) × 1022 cm-2
z of absorber0.82
Photon index1.79 (+0.03, -0.03)
Flux (0.3-10 keV)
(Observed)
6.84 (+0.14, -0.13) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.60 (+0.18, -0.17) × 10-10 erg cm-2 s-1
Counts to flux (obs)4.32 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.07 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
829.20 (804)
Spectrum exposure1.2 ks

PC mode. Mean photon arrival: T0+15720 s

NH (Galactic)1.21 × 1021 cm-2
NH (intrinsic)8.2 (+2.6, -2.3) × 1021 cm-2
z of absorber0.82
Photon index1.70 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
1.12 (+0.08, -0.07) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.45 (+0.08, -0.08) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.42 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.74 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
431.01 (474)
Spectrum exposure12.0 ks

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Late Time spectrum (T0 + 6659 to 80858 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+24410 s

NH (Galactic)1.21 × 1021 cm-2
NH (intrinsic)6.2 (+2.7, -2.3) × 1021 cm-2
z of absorber0.82
Photon index1.80 (+0.14, -0.13)
Flux (0.3-10 keV)
(Observed)
4.8 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.3 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.06 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.38 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
372.00 (361)
Spectrum exposure11.5 ks

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