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Swift-XRT spectra of GRB 210504A

Last updated after receiving ObsID 01046782004, version 9

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 2.077 (GCN 29944)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 218 to 29795 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+262 s

NH (Galactic)1.29 × 1021 cm-2
NH (intrinsic)2.2 (+4.4, -2.2) × 1021 cm-2
z of absorber2.077
Photon index1.95 (+0.11, -0.10)
Flux (0.3-10 keV)
(Observed)
9.2 (+0.7, -0.6) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.17 (+0.06, -0.06) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.30 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.21 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
390.28 (421)
Spectrum exposure146 s

PC mode. Mean photon arrival: T0+4922 s

NH (Galactic)1.29 × 1021 cm-2
NH (intrinsic)0 (+3.85 × 1021, -0) cm-2
z of absorber2.077
Photon index2.12 (+0.15, -0.14)
Flux (0.3-10 keV)
(Observed)
6.3 (+0.6, -0.6) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
8.4 (+0.7, -0.7) × 10-12 erg cm-2 s-1
Counts to flux (obs)2.98 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.96 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
175.63 (219)
Spectrum exposure6.9 ks

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Late Time spectrum (T0 + 11628 to 29795 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16564 s

NH (Galactic)1.29 × 1021 cm-2
NH (intrinsic)0 (+6.76 × 1021, -0) cm-2
z of absorber2.077
Photon index1.99 (+0.44, -0.21)
Flux (0.3-10 keV)
(Observed)
9.4 (+2.1, -2.2) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.20 (+0.23, -0.21) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.02 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.84 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
52.42 (82)
Spectrum exposure5.3 ks

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