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Swift-XRT spectra of GRB 230903A

Last updated after receiving ObsID 01189514002, version 7

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 115 to 147136 s)

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PC mode spectrum of Time-averaged

WT mode. Mean photon arrival: T0+119 s

N_H (Galactic)	2.68 × 10²⁰ cm^-2
N_H (intrinsic)	6 (+42, -6) × 10²⁰ cm^-2
z of absorber	0
Photon index	5.0 (+6.9, -1.7)
Flux (0.3-10 keV) (Observed)	8 (+4, -4) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.2 (+1.00 × 10¹⁰, -1.6) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.14 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.68 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	()
Spectrum exposure	8 s

PC mode. Mean photon arrival: T0+1378 s

N_H (Galactic)	2.68 × 10²⁰ cm^-2
N_H (intrinsic)	7 (+6, -5) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.02 (+0.24, -0.23)
Flux (0.3-10 keV) (Observed)	4.3 (+0.6, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.2 (+0.6, -0.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.26 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.98 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	182.80 (207)
Spectrum exposure	6.2 ks

Late Time spectrum (T0 + 4687 to 147136 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22279 s

N_H (Galactic)	2.68 × 10²⁰ cm^-2
N_H (intrinsic)	3 (+60, -3) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.78 (+1.26, -0.92)
Flux (0.3-10 keV) (Observed)	1.19 (+1.16, -0.84) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.31 (+1.07, -0.66) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.77 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.16 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	22.70 (10)
Spectrum exposure	5.4 ks