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Swift-XRT spectra of GRB 070420

Last updated after receiving ObsID 00276321008, version 21

Data were analysed using HEASOFT version 6.32

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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+11143 s

NH (Galactic)4.74 × 1021 cm-2
NH (intrinsic)3 (+6, -3) × 1020 cm-2
z of absorber0
Photon index1.85 (+0.09, -0.08)
Flux (0.3-10 keV)
(Observed)
1.41 (+0.07, -0.06) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.111 (+0.105, -0.096) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.38 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.55 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
563.08 (611)
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+19300 s

NH (Galactic)4.74 × 1021 cm-2
NH (intrinsic)2.4 (+8.8, -2.4) × 1020 cm-2
z of absorber0
Photon index1.735 (+0.120, -0.092)
Flux (0.3-10 keV)
(Observed)
7.1 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.00 (+0.06, -0.06) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.64 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.52 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
499.83 (511)
Spectrum exposure18.7 ks

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