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Swift-XRT spectra of GRB 180709A

Last updated after receiving ObsID 00846868003, version 8

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 111 to 42055 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+227 s

N_H (Galactic)	8.89 × 10²¹ cm^-2
N_H (intrinsic)	1.5 (+0.5, -0.4) × 10²² cm^-2
z of absorber	0
Photon index	1.43 (+0.21, -0.20)
Flux (0.3-10 keV) (Observed)	4.0 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.1 (+0.8, -0.5) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	7.85 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.20 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	498.77 (531)
Spectrum exposure	277 s

PC mode. Mean photon arrival: T0+1938 s

N_H (Galactic)	8.89 × 10²¹ cm^-2
N_H (intrinsic)	2.21 (+1.12, -0.95) × 10²² cm^-2
z of absorber	0
Photon index	1.5 (+0.5, -0.4)
Flux (0.3-10 keV) (Observed)	2.7 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.40 (+1.70, -0.77) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	8.81 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.45 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	148.95 (210)
Spectrum exposure	11.7 ks

Late Time spectrum (T0 + 6635 to 42055 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+21757 s

N_H (Galactic)	8.89 × 10²¹ cm^-2
N_H (intrinsic)	7.1 (+12.0, -7.1) × 10²² cm^-2
z of absorber	0
Photon index	3 (+5, -3)
Flux (0.3-10 keV) (Observed)	1.19 (+1.61, -0.59) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4 (+1.00 × 10¹², -3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.98 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.84 × 10^-9 erg cm^-2 ct^-1
W-stat (dof) What's this?	28.68 (12)
Spectrum exposure	10.3 ks