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Swift-XRT spectra of GRB 250813B

Last updated after receiving ObsID 02147483647, version 3

Data were analysed using HEASOFT version 6.35.2

About these products.

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.752 (GCN 41363)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 9555 to 16304 s)

Download spectral files for Time-averaged spectrum.

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+12766 s

N_H (Galactic)	6.23 × 10²⁰ cm^-2
N_H (intrinsic)	1.33 (+1.12, -0.86) × 10²² cm^-2
z of absorber	1.752
Photon index	1.99 (+0.29, -0.27)
Flux (0.3-10 keV) (Observed)	6.4 (+1.2, -1.0) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.5 (+1.4, -1.1) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.48 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.68 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	125.14 (143)
Spectrum exposure	1.6 ks

Late Time spectrum (T0 + 9555 to 16304 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12766 s

N_H (Galactic)	6.23 × 10²⁰ cm^-2
N_H (intrinsic)	1.33 (+1.12, -0.86) × 10²² cm^-2
z of absorber	1.752
Photon index	1.99 (+0.29, -0.27)
Flux (0.3-10 keV) (Observed)	6.4 (+1.2, -1.0) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.5 (+1.4, -1.1) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.48 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.68 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	125.14 (143)
Spectrum exposure	1.6 ks