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Swift-XRT spectra of GRB 180727A

Last updated after receiving ObsID 00850231002, version 12

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 75 to 21712 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+85 s

N_H (Galactic)	2.10 × 10²⁰ cm^-2
N_H (intrinsic)	1.8 (+2.7, -1.8) × 10²¹ cm^-2
z of absorber	0
Photon index	2.3 (+0.9, -0.7)
Flux (0.3-10 keV) (Observed)	8.8 (+4.1, -2.7) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.4 (+0.6, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.52 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.95 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	42.90 (59)
Spectrum exposure	24 s

PC mode. Mean photon arrival: T0+1773 s

N_H (Galactic)	2.10 × 10²⁰ cm^-2
N_H (intrinsic)	1.5 (+1.7, -1.3) × 10²¹ cm^-2
z of absorber	0
Photon index	1.8 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	1.5 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.9 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.97 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.90 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	81.98 (93)
Spectrum exposure	4.0 ks

Late Time spectrum (T0 + 4070 to 21712 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+5674 s

N_H (Galactic)	2.10 × 10²⁰ cm^-2
N_H (intrinsic)	9 (+37, -9) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.89 (+1.01, -0.65)
Flux (0.3-10 keV) (Observed)	3.8 (+2.3, -1.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.7 (+1.9, -1.5) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.57 × 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?	32.28 (29)
Spectrum exposure	3.9 ks