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Swift-XRT spectra of GRB 200907B

Last updated after receiving ObsID 00995004003, version 10

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 83 to 34960 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+85 s

N_H (Galactic)	4.23 × 10²¹ cm^-2
N_H (intrinsic)	1.2 (+12.9, -1.2) × 10²² cm^-2
z of absorber	0
Photon index	3.1 (+14.4, -2.7)
Flux (0.3-10 keV) (Observed)	1.05 (+2.73, -0.63) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8 (+1.00 × 10¹⁰, +9999999992) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.58 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.80 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	3.37 (5)
Spectrum exposure	5 s

PC mode. Mean photon arrival: T0+956 s

N_H (Galactic)	4.23 × 10²¹ cm^-2
N_H (intrinsic)	1.7 (+3.1, -1.7) × 10²¹ cm^-2
z of absorber	0
Photon index	1.9 (+0.5, -0.4)
Flux (0.3-10 keV) (Observed)	1.38 (+0.37, -0.28) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.2 (+0.6, -0.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.48 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.22 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	115.00 (114)
Spectrum exposure	8.2 ks

Late Time spectrum (T0 + 4087 to 34960 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+10711 s

N_H (Galactic)	4.23 × 10²¹ cm^-2
N_H (intrinsic)	9.4 (+21.0, -9.4) × 10²¹ cm^-2
z of absorber	0
Photon index	6 (+39, -3)
Flux (0.3-10 keV) (Observed)	3.3 (+3.1, -1.7) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8 (+1.00 × 10¹², -8) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	1.92 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.84 × 10^-9 erg cm^-2 ct^-1
W-stat (dof) What's this?	7.43 (7)
Spectrum exposure	7.4 ks