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Swift-XRT spectra of GRB 180224A

Last updated after receiving ObsID 00811561001, version 13

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 84 to 56670 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+99 s

N_H (Galactic)	8.24 × 10¹⁹ cm^-2
N_H (intrinsic)	2.5 (+8.7, -2.5) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.0 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	1.7 (+0.4, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.8 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.95 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.21 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	81.39 (131)
Spectrum exposure	35 s

PC mode. Mean photon arrival: T0+2026 s

N_H (Galactic)	8.24 × 10¹⁹ cm^-2
N_H (intrinsic)	6 (+5, -4) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.52 (+0.15, -0.14)
Flux (0.3-10 keV) (Observed)	9.94 (+1.05, -0.95) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.07 (+0.08, -0.07) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.33 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.66 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	334.50 (334)
Spectrum exposure	7.8 ks

Late Time spectrum (T0 + 4842 to 56670 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+9481 s

N_H (Galactic)	8.24 × 10¹⁹ cm^-2
N_H (intrinsic)	7.8 (+17.5, -7.8) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.1 (+0.6, -0.5)
Flux (0.3-10 keV) (Observed)	6.3 (+2.2, -1.6) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.7 (+2.1, -1.7) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.20 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.94 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	60.25 (73)
Spectrum exposure	6.4 ks