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Swift-XRT spectra of GRB 250823A

Last updated after receiving ObsID 01344586001, version 8

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 125 to 44727 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+202 s

N_H (Galactic)	1.12 × 10²¹ cm^-2
N_H (intrinsic)	8.7 (+1.6, -1.5) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.91 (+0.04, -0.04)
Flux (0.3-10 keV) (Observed)	2.37 (+0.06, -0.06) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.12 (+0.06, -0.06) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	3.63 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.80 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	695.53 (704)
Spectrum exposure	313 s

PC mode. Mean photon arrival: T0+5756 s

N_H (Galactic)	1.12 × 10²¹ cm^-2
N_H (intrinsic)	7.9 (+10.0, -7.9) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.92 (+0.28, -0.26)
Flux (0.3-10 keV) (Observed)	7.9 (+1.4, -1.1) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.05 (+0.14, -0.10) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.76 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.96 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	168.05 (180)
Spectrum exposure	4.5 ks

Late Time spectrum (T0 + 5672 to 44727 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19222 s

N_H (Galactic)	1.12 × 10²¹ cm^-2
N_H (intrinsic)	1.5 (+2.4, -1.5) × 10²¹ cm^-2
z of absorber	0
Photon index	2.1 (+0.6, -0.5)
Flux (0.3-10 keV) (Observed)	1.3 (+0.5, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.9 (+0.6, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.65 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.42 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	50.43 (67)
Spectrum exposure	3.5 ks