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Swift-XRT spectra of GRB 190220A

Last updated after receiving ObsID 00889785003, version 11

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 87 to 40939 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+115 s

N_H (Galactic)	1.10 × 10²¹ cm^-2
N_H (intrinsic)	2.8 (+1.5, -1.3) × 10²¹ cm^-2
z of absorber	0
Photon index	2.07 (+0.31, -0.29)
Flux (0.3-10 keV) (Observed)	1.79 (+0.32, -0.27) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.9 (+0.6, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.53 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.69 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	148.13 (200)
Spectrum exposure	67 s

PC mode. Mean photon arrival: T0+3655 s

N_H (Galactic)	1.10 × 10²¹ cm^-2
N_H (intrinsic)	3.4 (+1.8, -1.5) × 10²¹ cm^-2
z of absorber	0
Photon index	1.78 (+0.29, -0.27)
Flux (0.3-10 keV) (Observed)	4.8 (+0.8, -0.7) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.8 (+0.7, -0.8) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.53 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.42 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	172.03 (204)
Spectrum exposure	5.7 ks

Late Time spectrum (T0 + 4480 to 40939 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17358 s

N_H (Galactic)	1.10 × 10²¹ cm^-2
N_H (intrinsic)	5.8 (+11.6, -5.0) × 10²¹ cm^-2
z of absorber	0
Photon index	1.78 (+1.07, -0.75)
Flux (0.3-10 keV) (Observed)	7.6 (+4.1, -2.5) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.14 (+2.07, -0.27) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.09 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.70 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	49.02 (48)
Spectrum exposure	4.9 ks