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Swift-XRT spectra of GRB 180809B

Last updated after receiving ObsID 00852553007, version 11

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 74 to 16961 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+624 s

N_H (Galactic)	1.19 × 10²¹ cm^-2
N_H (intrinsic)	2.04 (+0.09, -0.09) × 10²¹ cm^-2
z of absorber	0
Photon index	1.674 (+0.016, -0.016)
Flux (0.3-10 keV) (Observed)	2.934 (+0.028, -0.028) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.791 (+0.029, -0.029) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.47 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.77 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	1039.25 (922)
Spectrum exposure	1.5 ks

PC mode. Mean photon arrival: T0+9300 s

N_H (Galactic)	1.19 × 10²¹ cm^-2
N_H (intrinsic)	1.9 (+0.5, -0.5) × 10²¹ cm^-2
z of absorber	0
Photon index	1.758 (+0.101, -0.098)
Flux (0.3-10 keV) (Observed)	1.58 (+0.09, -0.09) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.11 (+0.10, -0.09) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.30 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.71 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	479.45 (514)
Spectrum exposure	3.0 ks

Late Time spectrum (T0 + 4793 to 16961 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+9300 s

N_H (Galactic)	1.19 × 10²¹ cm^-2
N_H (intrinsic)	1.9 (+0.5, -0.5) × 10²¹ cm^-2
z of absorber	0
Photon index	1.758 (+0.101, -0.098)
Flux (0.3-10 keV) (Observed)	1.58 (+0.09, -0.09) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.11 (+0.10, -0.09) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.30 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.71 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	479.45 (514)
Spectrum exposure	3.0 ks