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Swift-XRT spectra of GRB 070420

Last updated after receiving ObsID 00276321008, version 21

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 105 to 86924 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+136 s

NH (Galactic)4.74 × 1021 cm-2
NH (intrinsic)2.2 (+5.2, -2.2) × 1020 cm-2
z of absorber0
Photon index2.407 (+0.109, -0.091)
Flux (0.3-10 keV)
(Observed)
6.9 (+0.3, -0.3) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.50 (+0.15, -0.10) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.22 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.98 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
443.68 (511)
Spectrum exposure132 s

PC mode. Mean photon arrival: T0+12455 s

NH (Galactic)4.74 × 1021 cm-2
NH (intrinsic)1.4 (+6.3, -1.4) × 1020 cm-2
z of absorber0
Photon index1.82 (+0.09, -0.07)
Flux (0.3-10 keV)
(Observed)
1.30 (+0.06, -0.06) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.90 (+0.10, -0.09) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.43 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.46 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
546.13 (585)
Spectrum exposure20.5 ks

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Late Time spectrum (T0 + 5281 to 86924 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+20589 s

NH (Galactic)4.74 × 1021 cm-2
NH (intrinsic)0 (+9.24 × 1020, -0) cm-2
z of absorber0
Photon index1.701 (+0.128, -0.071)
Flux (0.3-10 keV)
(Observed)
6.7 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.2 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.68 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.43 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
474.95 (495)
Spectrum exposure18.7 ks

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