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Swift-XRT spectra of GRB 150301B

Last updated after receiving ObsID 00633180002, version 11

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.5169 (GCN 17523)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 86 to 17782 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+114 s

NH (Galactic)6.15 × 1020 cm-2
NH (intrinsic)0 (+3.50 × 1021, -0) cm-2
z of absorber1.5169
Photon index1.60 (+0.25, -0.12)
Flux (0.3-10 keV)
(Observed)
2.11 (+0.25, -0.35) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.29 (+0.28, -0.30) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.76 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.09 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
165.36 (219)
Spectrum exposure67 s

PC mode. Mean photon arrival: T0+1994 s

NH (Galactic)6.15 × 1020 cm-2
NH (intrinsic)0 (+2.87 × 1021, -0) cm-2
z of absorber1.5169
Photon index1.76 (+0.17, -0.10)
Flux (0.3-10 keV)
(Observed)
8.8 (+0.8, -1.0) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.7 (+0.9, -0.9) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.71 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.11 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
221.19 (247)
Spectrum exposure3.2 ks

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Late Time spectrum (T0 + 4001 to 17782 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8423 s

NH (Galactic)6.15 × 1020 cm-2
NH (intrinsic)2.7 (+9.0, -2.7) × 1021 cm-2
z of absorber1.5169
Photon index2.0 (+0.5, -0.4)
Flux (0.3-10 keV)
(Observed)
1.4 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.7 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.27 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.01 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
69.50 (69)
Spectrum exposure2.6 ks

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