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Swift-XRT spectra of GRB 180620B

Last updated after receiving ObsID 00843211009, version 18

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.1175 (GCN 22823)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 89 to 22736 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+151 s

N_H (Galactic)	1.39 × 10²⁰ cm^-2
N_H (intrinsic)	9.8 (+0.7, -0.6) × 10²¹ cm^-2
z of absorber	1.1175
Photon index	2.12 (+0.04, -0.04)
Flux (0.3-10 keV) (Observed)	4.46 (+0.10, -0.10) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.34 (+0.14, -0.13) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	3.21 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.56 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	585.89 (671)
Spectrum exposure	237 s

PC mode. Mean photon arrival: T0+10226 s

N_H (Galactic)	1.39 × 10²⁰ cm^-2
N_H (intrinsic)	5.0 (+1.4, -1.3) × 10²¹ cm^-2
z of absorber	1.1175
Photon index	1.83 (+0.09, -0.09)
Flux (0.3-10 keV) (Observed)	1.95 (+0.12, -0.12) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.31 (+0.11, -0.11) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.65 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.31 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	371.82 (431)
Spectrum exposure	5.6 ks

Late Time spectrum (T0 + 4252 to 22736 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12761 s

N_H (Galactic)	1.39 × 10²⁰ cm^-2
N_H (intrinsic)	7.4 (+1.8, -1.6) × 10²¹ cm^-2
z of absorber	1.1175
Photon index	1.92 (+0.11, -0.11)
Flux (0.3-10 keV) (Observed)	1.467 (+0.105, -0.097) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.86 (+0.11, -0.10) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.54 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.48 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	337.30 (391)
Spectrum exposure	5.0 ks