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Swift-XRT spectra of GRB 061021

Last updated after receiving ObsID 00234905048, version 10

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 0.3463 (Fynbo et al. 2009)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 78 to 143839 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+132 s

NH (Galactic)5.53 × 1020 cm-2
NH (intrinsic)0 (+4.17 × 1019, -0) cm-2
z of absorber0.3463
Photon index2.01 (+0.05, -0.05)
Flux (0.3-10 keV)
(Observed)
4.88 (+0.23, -0.18) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.59 (+0.23, -0.20) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.13 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.58 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
487.24 (477)
Spectrum exposure161 s

PC mode. Mean photon arrival: T0+37980 s

NH (Galactic)5.53 × 1020 cm-2
NH (intrinsic)5.8 (+2.7, -2.7) × 1020 cm-2
z of absorber0.3463
Photon index1.88 (+0.06, -0.06)
Flux (0.3-10 keV)
(Observed)
3.89 (+0.14, -0.14) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.55 (+0.14, -0.13) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.47 × 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?
562.03 (585)
Spectrum exposure57.9 ks

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Late Time spectrum (T0 + 4173 to 143839 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+39623 s

NH (Galactic)5.53 × 1020 cm-2
NH (intrinsic)6.1 (+2.8, -2.7) × 1020 cm-2
z of absorber0.3463
Photon index1.89 (+0.06, -0.06)
Flux (0.3-10 keV)
(Observed)
3.63 (+0.14, -0.13) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.26 (+0.13, -0.13) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.44 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.05 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
546.08 (577)
Spectrum exposure57.6 ks

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