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Swift-XRT spectra of GRB 090516

Last updated after receiving ObsID 00352190009, version 17

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 4.109 (GCN 9383)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 170 to 127519 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+259 s

NH (Galactic)5.26 × 1020 cm-2
NH (intrinsic)3.8 (+0.4, -0.4) × 1022 cm-2
z of absorber4.109
Photon index1.852 (+0.029, -0.029)
Flux (0.3-10 keV)
(Observed)
3.35 (+0.06, -0.06) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.06 (+0.06, -0.06) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.59 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.36 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
692.87 (734)
Spectrum exposure319 s

PC mode. Mean photon arrival: T0+21335 s

NH (Galactic)5.26 × 1020 cm-2
NH (intrinsic)2.2 (+0.8, -0.8) × 1022 cm-2
z of absorber4.109
Photon index1.99 (+0.07, -0.07)
Flux (0.3-10 keV)
(Observed)
2.38 (+0.11, -0.11) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.89 (+0.11, -0.11) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.31 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.03 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
405.19 (485)
Spectrum exposure54.7 ks

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Late Time spectrum (T0 + 4002 to 127519 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22439 s

NH (Galactic)5.26 × 1020 cm-2
NH (intrinsic)2.7 (+0.9, -0.9) × 1022 cm-2
z of absorber4.109
Photon index2.03 (+0.08, -0.07)
Flux (0.3-10 keV)
(Observed)
2.154 (+0.104, -0.098) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.68 (+0.11, -0.10) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.26 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.06 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
390.89 (476)
Spectrum exposure54.4 ks

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