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Swift-XRT spectra of GRB 150724A

Last updated after receiving ObsID 00650141002, version 5

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 108 to 24386 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+254 s

N_H (Galactic)	2.94 × 10²¹ cm^-2
N_H (intrinsic)	1.11 (+0.22, -0.21) × 10²¹ cm^-2
z of absorber	0
Photon index	1.71 (+0.04, -0.04)
Flux (0.3-10 keV) (Observed)	2.59 (+0.05, -0.05) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.51 (+0.06, -0.06) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.52 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.12 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	847.99 (794)
Spectrum exposure	349 s

PC mode. Mean photon arrival: T0+6854 s

N_H (Galactic)	2.94 × 10²¹ cm^-2
N_H (intrinsic)	1.2 (+0.9, -0.8) × 10²¹ cm^-2
z of absorber	0
Photon index	2.22 (+0.20, -0.19)
Flux (0.3-10 keV) (Observed)	4.0 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.11 (+1.08, -0.80) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.48 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.24 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	261.46 (295)
Spectrum exposure	10.9 ks

Late Time spectrum (T0 + 4676 to 24386 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+14296 s

N_H (Galactic)	2.94 × 10²¹ cm^-2
N_H (intrinsic)	3.1 (+1.9, -1.6) × 10²¹ cm^-2
z of absorber	0
Photon index	2.4 (+0.3, -0.3)
Flux (0.3-10 keV) (Observed)	1.43 (+0.22, -0.19) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.24 (+1.18, -0.39) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.45 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.83 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	171.70 (190)
Spectrum exposure	10.0 ks