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Swift-XRT spectra of GRB 140817A

Last updated after receiving ObsID 00609736002, version 23

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 98 to 85193 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+321 s

N_H (Galactic)	8.00 × 10²⁰ cm^-2
N_H (intrinsic)	2.32 (+0.16, -0.16) × 10²¹ cm^-2
z of absorber	0
Photon index	1.66 (+0.03, -0.03)
Flux (0.3-10 keV) (Observed)	1.80 (+0.03, -0.03) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.30 (+0.03, -0.03) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.47 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.71 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	867.79 (830)
Spectrum exposure	590 s

PC mode. Mean photon arrival: T0+19826 s

N_H (Galactic)	8.00 × 10²⁰ cm^-2
N_H (intrinsic)	2.2 (+0.4, -0.4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.86 (+0.10, -0.09)
Flux (0.3-10 keV) (Observed)	4.97 (+0.28, -0.26) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.83 (+0.31, -0.15) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.01 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.52 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	460.83 (499)
Spectrum exposure	29.2 ks

Late Time spectrum (T0 + 4707 to 85193 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+24633 s

N_H (Galactic)	8.00 × 10²⁰ cm^-2
N_H (intrinsic)	2.1 (+0.5, -0.5) × 10²¹ cm^-2
z of absorber	0
Photon index	1.87 (+0.11, -0.10)
Flux (0.3-10 keV) (Observed)	3.34 (+0.21, -0.20) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.62 (+0.23, -0.20) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.97 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.48 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	393.29 (461)
Spectrum exposure	28.8 ks