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Swift-XRT spectra of GRB 210912A

Last updated after receiving ObsID 01072990012, version 8

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 58 to 45926 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+70 s

NH (Galactic)2.40 × 1020 cm-2
NH (intrinsic)3.7 (+1.6, -1.3) × 1021 cm-2
z of absorber0
Photon index3.6 (+0.7, -0.5)
Flux (0.3-10 keV)
(Observed)
2.9 (+0.4, -0.4) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.60 (+1.98, -0.45) × 10-9 erg cm-2 s-1
Counts to flux (obs)2.05 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.15 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
124.28 (137)
Spectrum exposure32 s

PC mode. Mean photon arrival: T0+11402 s

NH (Galactic)2.40 × 1020 cm-2
NH (intrinsic)8 (+8, -7) × 1020 cm-2
z of absorber0
Photon index1.62 (+0.24, -0.23)
Flux (0.3-10 keV)
(Observed)
3.6 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.1 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.16 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.69 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
156.41 (195)
Spectrum exposure5.9 ks

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Late Time spectrum (T0 + 5494 to 45926 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16703 s

NH (Galactic)2.40 × 1020 cm-2
NH (intrinsic)9.8 (+11.1, -8.8) × 1020 cm-2
z of absorber0
Photon index1.63 (+0.31, -0.28)
Flux (0.3-10 keV)
(Observed)
2.1 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.5 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.19 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.80 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
138.27 (148)
Spectrum exposure5.3 ks

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