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Swift-XRT spectra of GRB 180720C

Last updated after receiving ObsID 00848932001, version 5

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 105 to 11892 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+5343 s

N_H (Galactic)	6.76 × 10²¹ cm^-2
N_H (intrinsic)	2.35 (+1.22, -0.99) × 10²² cm^-2
z of absorber	0
Photon index	2.2 (+0.6, -0.6)
Flux (0.3-10 keV) (Observed)	3.4 (+0.8, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	10.0 (+12.3, -3.7) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	6.57 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.90 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	114.11 (149)
Spectrum exposure	5.0 ks

Late Time spectrum (T0 + 4000 to 11892 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+7148 s

N_H (Galactic)	6.76 × 10²¹ cm^-2
N_H (intrinsic)	2.0 (+1.4, -1.1) × 10²² cm^-2
z of absorber	0
Photon index	2.1 (+0.7, -0.6)
Flux (0.3-10 keV) (Observed)	2.4 (+0.6, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.2 (+5.1, -2.2) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	6.58 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.71 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	84.11 (118)
Spectrum exposure	4.3 ks