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Swift-XRT spectra of GRB 200109A

Last updated after receiving ObsID 00948361001, version 10

Data were analysed using HEASOFT version 6.35.2

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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)	7 (+5, -3) × 10²¹ cm^-2
z of absorber	0
Photon index	1.49 (+0.32, -0.28)
Flux (0.3-10 keV) (Observed)	6.2 (+0.9, -0.8) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.7 (+1.6, -1.1) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	6.02 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.47 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	195.19 (292)
Spectrum exposure	48 s

PC mode. Mean photon arrival: T0+1333 s

N_H (Galactic)	3.98 × 10²¹ cm^-2
N_H (intrinsic)	3.2 (+2.9, -2.4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.64 (+0.32, -0.30)
Flux (0.3-10 keV) (Observed)	4.5 (+0.8, -0.7) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.35 (+1.19, -0.80) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.44 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.69 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	168.01 (213)
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+17824 s

N_H (Galactic)	3.98 × 10²¹ cm^-2
N_H (intrinsic)	9 (+57, -9) × 10²¹ cm^-2
z of absorber	0
Photon index	0.5 (+2.2, -1.3)
Flux (0.3-10 keV) (Observed)	4.3 (+3.6, -2.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.7 (+4.4, -2.3) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	1.24 × 10^-10 erg cm^-2 ct^-1
Counts to flux (unabs)	1.37 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	11.62 (10)
Spectrum exposure	5.0 ks