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Swift-XRT spectra of GRB 180418A

Last updated after receiving ObsID 00826428008, version 5

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 3091 to 27630 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+8489 s

N_H (Galactic)	1.07 × 10²⁰ cm^-2
N_H (intrinsic)	4 (+7, -4) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.94 (+0.27, -0.25)
Flux (0.3-10 keV) (Observed)	1.67 (+0.29, -0.24) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.88 (+0.26, -0.23) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.30 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.71 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	136.82 (170)
Spectrum exposure	6.7 ks

Late Time spectrum (T0 + 4001 to 27630 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11353 s

N_H (Galactic)	1.07 × 10²⁰ cm^-2
N_H (intrinsic)	3 (+73, -3) × 10¹⁹ cm^-2
z of absorber	0
Photon index	1.82 (+0.32, -0.20)
Flux (0.3-10 keV) (Observed)	1.26 (+0.21, -0.22) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.30 (+0.22, -0.19) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.46 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.56 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	105.77 (120)
Spectrum exposure	5.8 ks