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Swift-XRT spectra of GRB 251001B

Last updated after receiving ObsID 01400467002, version 6

Data were analysed using HEASOFT version 6.35.2

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The spectral fits assume a redshift: 2.162 (GCN 42053)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 120 to 56883 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+346 s

NH (Galactic)2.65 × 1020 cm-2
NH (intrinsic)8.1 (+2.4, -2.2) × 1021 cm-2
z of absorber2.162
Photon index1.91 (+0.07, -0.06)
Flux (0.3-10 keV)
(Observed)
4.80 (+0.21, -0.20) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.62 (+0.19, -0.18) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.38 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.96 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
487.18 (555)
Spectrum exposure300 s

PC mode. Mean photon arrival: T0+2959 s

NH (Galactic)2.65 × 1020 cm-2
NH (intrinsic)8 (+7, -6) × 1021 cm-2
z of absorber2.162
Photon index1.73 (+0.17, -0.17)
Flux (0.3-10 keV)
(Observed)
7.95 (+1.01, -0.89) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
8.9 (+0.9, -0.8) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.91 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.40 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
221.46 (264)
Spectrum exposure7.7 ks

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Late Time spectrum (T0 + 4476 to 56883 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+21006 s

NH (Galactic)2.65 × 1020 cm-2
NH (intrinsic)9.1 (+21.1, -9.1) × 1021 cm-2
z of absorber2.162
Photon index2.1 (+0.6, -0.5)
Flux (0.3-10 keV)
(Observed)
3.48 (+1.46, -1.00) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.3 (+1.5, -1.1) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.23 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.99 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
50.88 (43)
Spectrum exposure7.3 ks

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