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Swift-XRT spectra of GRB 060418

Last updated after receiving ObsID 00205851013, version 16

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.49 (GCN 4969)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 83 to 40330 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+205 s

NH (Galactic)1.59 × 1021 cm-2
NH (intrinsic)5.6 (+1.0, -0.9) × 1021 cm-2
z of absorber1.49
Photon index2.14 (+0.04, -0.04)
Flux (0.3-10 keV)
(Observed)
1.063 (+0.023, -0.023) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.58 (+0.03, -0.03) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.24 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.83 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
705.12 (710)
Spectrum exposure532 s

PC mode. Mean photon arrival: T0+4026 s

NH (Galactic)1.59 × 1021 cm-2
NH (intrinsic)2.3 (+4.2, -2.3) × 1021 cm-2
z of absorber1.49
Photon index1.89 (+0.15, -0.14)
Flux (0.3-10 keV)
(Observed)
1.91 (+0.19, -0.17) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.49 (+0.20, -0.18) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.66 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.76 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
225.16 (302)
Spectrum exposure2.5 ks

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Late Time spectrum (T0 + 4243 to 40330 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+7285 s

NH (Galactic)1.59 × 1021 cm-2
NH (intrinsic)6 (+597, -6) × 1019 cm-2
z of absorber1.49
Photon index1.83 (+0.22, -0.15)
Flux (0.3-10 keV)
(Observed)
7.3 (+0.9, -0.9) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.03 (+1.04, -0.83) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.75 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.67 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
147.76 (202)
Spectrum exposure2.2 ks

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