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Swift-XRT spectra of GRB 070518

Last updated after receiving ObsID 00279592015, version 15

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 76 to 272854 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+153 s

N_H (Galactic)	1.57 × 10²⁰ cm^-2
N_H (intrinsic)	7.0 (+2.0, -1.9) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.490 (+0.104, -0.100)
Flux (0.3-10 keV) (Observed)	4.30 (+0.20, -0.19) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.97 (+0.27, -0.35) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.63 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.65 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	361.56 (395)
Spectrum exposure	178 s

PC mode. Mean photon arrival: T0+32182 s

N_H (Galactic)	1.57 × 10²⁰ cm^-2
N_H (intrinsic)	1.3 (+5.3, -1.3) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.06 (+0.28, -0.20)
Flux (0.3-10 keV) (Observed)	3.0 (+0.4, -0.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.2 (+0.4, -0.3) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.09 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.35 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	136.58 (179)
Spectrum exposure	46.4 ks

Late Time spectrum (T0 + 5105 to 272854 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+59533 s

N_H (Galactic)	1.57 × 10²⁰ cm^-2
N_H (intrinsic)	3 (+8, -3) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.1 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	1.48 (+0.35, -0.28) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.69 (+0.31, -0.28) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.08 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.51 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	99.36 (121)
Spectrum exposure	44.9 ks