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Swift-XRT spectra of GRB 250920C

Last updated after receiving ObsID 01351039001, version 12

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.4 (GCN 41928)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 130 to 56200 s)

Download spectral files for Time-averaged spectrum.

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+159 s

N_H (Galactic)	1.40 × 10²⁰ cm^-2
N_H (intrinsic)	2.1 (+1.2, -1.1) × 10²¹ cm^-2
z of absorber	1.4
Photon index	1.93 (+0.09, -0.09)
Flux (0.3-10 keV) (Observed)	1.20 (+0.07, -0.07) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.33 (+0.06, -0.06) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	3.27 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.61 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	418.28 (442)
Spectrum exposure	64 s

PC mode. Mean photon arrival: T0+13921 s

N_H (Galactic)	1.40 × 10²⁰ cm^-2
N_H (intrinsic)	3.2 (+2.2, -2.0) × 10²¹ cm^-2
z of absorber	1.4
Photon index	1.86 (+0.14, -0.14)
Flux (0.3-10 keV) (Observed)	1.44 (+0.14, -0.13) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.61 (+0.12, -0.12) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.57 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.00 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	262.39 (291)
Spectrum exposure	4.1 ks

Late Time spectrum (T0 + 7045 to 56200 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+20776 s

N_H (Galactic)	1.40 × 10²⁰ cm^-2
N_H (intrinsic)	3.8 (+3.0, -2.6) × 10²¹ cm^-2
z of absorber	1.4
Photon index	1.92 (+0.18, -0.18)
Flux (0.3-10 keV) (Observed)	7.7 (+1.0, -0.8) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.8 (+0.9, -0.8) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.46 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.97 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	200.43 (227)
Spectrum exposure	3.9 ks