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Swift-XRT spectra of GRB 250916A

Last updated after receiving ObsID 00021859001, version 3

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 102084 to 107240 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+104532 s

N_H (Galactic)	5.42 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+2.74 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	2.0 (+0.9, -0.4)
Flux (0.3-10 keV) (Observed)	9 (+4, -3) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.0 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.37 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.80 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	28.57 (30)
Spectrum exposure	1.6 ks

Late Time spectrum (T0 + 102084 to 107240 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+104532 s

N_H (Galactic)	5.42 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+2.74 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	2.0 (+0.9, -0.4)
Flux (0.3-10 keV) (Observed)	9 (+4, -3) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.0 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.37 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.80 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	28.57 (30)
Spectrum exposure	1.6 ks