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Swift-XRT spectra of GRB 200109A

Last updated after receiving ObsID 00948361001, version 10

Data were analysed using HEASOFT version 6.28

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 109 to 28388 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+130 s

N_H (Galactic)	3.98 × 10²¹ cm^-2
N_H (intrinsic)	8 (+5, -4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.53 (+0.33, -0.29)
Flux (0.3-10 keV) (Observed)	6.0 (+0.9, -0.8) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.4 (+3.0, -1.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	5.89 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.29 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	194.04 (294)
Spectrum exposure	48 s

PC mode. Mean photon arrival: T0+1141 s

N_H (Galactic)	3.98 × 10²¹ cm^-2
N_H (intrinsic)	3.5 (+2.7, -2.3) × 10²¹ cm^-2
z of absorber	0
Photon index	1.72 (+0.30, -0.28)
Flux (0.3-10 keV) (Observed)	4.2 (+0.7, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.3 (+6.1, -1.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.27 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.85 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	185.92 (225)
Spectrum exposure	6.5 ks

Late Time spectrum (T0 + 11719 to 28388 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+18723 s

N_H (Galactic)	3.98 × 10²¹ cm^-2
N_H (intrinsic)	4 (+46, -4) × 10²¹ cm^-2
z of absorber	0
Photon index	0.6 (+2.2, -1.2)
Flux (0.3-10 keV) (Observed)	2.9 (+2.6, -1.7) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.6 (+411.1, -1.3) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	1.05 × 10^-10 erg cm^-2 ct^-1
Counts to flux (unabs)	5.83 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	8.19 (8)
Spectrum exposure	5.0 ks