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Swift-XRT spectra of GRB 170531A

Last updated after receiving ObsID 00755343002, version 6

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 + 254 to 44628 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+12660 s

N_H (Galactic)	1.20 × 10²¹ cm^-2
N_H (intrinsic)	5 (+10, -5) × 10²¹ cm^-2
z of absorber	0
Photon index	2.3 (+1.5, -1.1)
Flux (0.3-10 keV) (Observed)	2.7 (+2.4, -1.2) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.5 (+17.6, -2.5) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.87 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.02 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	30.53 (23)
Spectrum exposure	6.2 ks

Late Time spectrum (T0 + 4000 to 44628 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+27818 s

N_H (Galactic)	1.20 × 10²¹ cm^-2
N_H (intrinsic)	0 (+1.50 × 10²², -0) cm^-2
z of absorber	0
Photon index	0.1 (+3.2, -0.8)
Flux (0.3-10 keV) (Observed)	6 (+6, -5) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6 (+7, -5) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	2.11 × 10^-10 erg cm^-2 ct^-1
Counts to flux (unabs)	2.28 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	11.93 (8)
Spectrum exposure	5.7 ks