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Swift-XRT spectra of GRB 170318B

Last updated after receiving ObsID 00743086001, version 6

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 80 to 41116 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+125 s

NH (Galactic)1.35 × 1022 cm-2
NH (intrinsic)5.4 (+1.9, -1.6) × 1022 cm-2
z of absorber0
Photon index1.6 (+0.4, -0.4)
Flux (0.3-10 keV)
(Observed)
6.7 (+0.8, -0.8) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.5 (+0.8, -0.3) × 10-9 erg cm-2 s-1
Counts to flux (obs)9.56 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)2.08 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
293.48 (357)
Spectrum exposure95 s

PC mode. Mean photon arrival: T0+1308 s

NH (Galactic)1.35 × 1022 cm-2
NH (intrinsic)5.4 (+2.7, -2.2) × 1022 cm-2
z of absorber0
Photon index2.3 (+0.8, -0.7)
Flux (0.3-10 keV)
(Observed)
5.01 (+1.12, -0.88) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.3 (+5.6, -1.0) × 10-11 erg cm-2 s-1
Counts to flux (obs)8.24 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.74 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
115.78 (139)
Spectrum exposure7.1 ks

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Late Time spectrum (T0 + 4918 to 41116 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+9035 s

NH (Galactic)1.35 × 1022 cm-2
NH (intrinsic)0 (+3.59 × 1023, -0) cm-2
z of absorber0
Photon index-0.4 (+5.1, -1.2)
Flux (0.3-10 keV)
(Observed)
1.5 (+3.3, -1.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.6 (+4.7, -1.0) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.79 × 10-10 erg cm-2 ct-1
Counts to flux (unabs)3.96 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
15.83 (16)
Spectrum exposure6.2 ks

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