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Swift-XRT spectra of GRB 250504A

Last updated after receiving ObsID 01310284001, version 15

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 81 to 56729 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+103 s

NH (Galactic)2.12 × 1021 cm-2
NH (intrinsic)0 (+1.39 × 1021, -0) cm-2
z of absorber0
Photon index1.63 (+0.33, -0.16)
Flux (0.3-10 keV)
(Observed)
2.9 (+0.4, -0.5) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.5 (+0.5, -0.5) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.97 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.83 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
167.02 (201)
Spectrum exposure47 s

PC mode. Mean photon arrival: T0+1825 s

NH (Galactic)2.12 × 1021 cm-2
NH (intrinsic)7.3 (+14.2, -7.3) × 1020 cm-2
z of absorber0
Photon index1.59 (+0.24, -0.22)
Flux (0.3-10 keV)
(Observed)
1.06 (+0.16, -0.14) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.31 (+0.15, -0.13) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.86 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.01 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
194.58 (265)
Spectrum exposure6.9 ks

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Late Time spectrum (T0 + 5060 to 56729 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11634 s

NH (Galactic)2.12 × 1021 cm-2
NH (intrinsic)0 (+1.14 × 1022, -0) cm-2
z of absorber0
Photon index1.44 (+1.31, -0.42)
Flux (0.3-10 keV)
(Observed)
5.7 (+2.5, -2.3) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.5 (+2.5, -1.9) × 10-13 erg cm-2 s-1
Counts to flux (obs)5.37 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.20 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
37.67 (48)
Spectrum exposure6.1 ks

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