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Swift-XRT spectra of GRB 250903A

Last updated after receiving ObsID 03000070002, version 9

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 12742 to 24836 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+16608 s

N_H (Galactic)	4.68 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+1.08 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.95 (+0.73, -0.21)
Flux (0.3-10 keV) (Observed)	1.3 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.4 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.42 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.59 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	52.18 (53)
Spectrum exposure	2.4 ks

Late Time spectrum (T0 + 12742 to 24836 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16608 s

N_H (Galactic)	4.68 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+1.08 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.95 (+0.73, -0.21)
Flux (0.3-10 keV) (Observed)	1.3 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.4 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.42 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.59 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	52.18 (53)
Spectrum exposure	2.4 ks