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Swift-XRT spectra of GRB 230728A

Last updated after receiving ObsID 01181187007, version 18

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 96 to 28922 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+134 s

N_H (Galactic)	6.29 × 10²⁰ cm^-2
N_H (intrinsic)	4.1 (+1.6, -1.4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.94 (+0.26, -0.24)
Flux (0.3-10 keV) (Observed)	2.4 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.7 (+0.6, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.78 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.86 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	260.44 (282)
Spectrum exposure	94 s

PC mode. Mean photon arrival: T0+3994 s

N_H (Galactic)	6.29 × 10²⁰ cm^-2
N_H (intrinsic)	6.0 (+1.4, -1.2) × 10²¹ cm^-2
z of absorber	0
Photon index	1.99 (+0.18, -0.18)
Flux (0.3-10 keV) (Observed)	1.71 (+0.16, -0.14) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.92 (+0.41, -0.28) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.46 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.62 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	293.57 (364)
Spectrum exposure	6.6 ks

Late Time spectrum (T0 + 5605 to 28922 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16549 s

N_H (Galactic)	6.29 × 10²⁰ cm^-2
N_H (intrinsic)	6.9 (+3.6, -2.8) × 10²¹ cm^-2
z of absorber	0
Photon index	2.4 (+0.5, -0.4)
Flux (0.3-10 keV) (Observed)	1.63 (+0.37, -0.29) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.85 (+2.53, -0.76) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.75 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.86 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	109.85 (133)
Spectrum exposure	5.4 ks