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Swift-XRT spectra of GRB 201221A

Last updated after receiving ObsID 01013852008, version 8

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 5.7 (GCN 29100)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 143 to 46800 s)

Download spectral files for Time-averaged spectrum.

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+8763 s

N_H (Galactic)	9.32 × 10²⁰ cm^-2
N_H (intrinsic)	1.0 (+1.0, -0.7) × 10²³ cm^-2
z of absorber	5.7
Photon index	1.57 (+0.18, -0.17)
Flux (0.3-10 keV) (Observed)	4.4 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.2 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.53 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.34 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	257.12 (286)
Spectrum exposure	9.6 ks

Late Time spectrum (T0 + 4673 to 46800 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+14360 s

N_H (Galactic)	9.32 × 10²⁰ cm^-2
N_H (intrinsic)	7 (+10, -7) × 10²² cm^-2
z of absorber	5.7
Photon index	1.66 (+0.22, -0.21)
Flux (0.3-10 keV) (Observed)	2.2 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.62 (+0.32, -0.29) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.16 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.93 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	173.74 (199)
Spectrum exposure	8.8 ks