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Swift-XRT spectra of GRB 210420B

Last updated after receiving ObsID 01044382006, version 12

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.4 (GCN 29853)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 141 to 19314 s)

Download spectral files for Time-averaged spectrum.

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+205 s

N_H (Galactic)	2.09 × 10²⁰ cm^-2
N_H (intrinsic)	7.8 (+11.3, -7.8) × 10²⁰ cm^-2
z of absorber	1.4
Photon index	1.68 (+0.08, -0.08)
Flux (0.3-10 keV) (Observed)	5.6 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.89 (+0.27, -0.26) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.73 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.94 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	487.32 (503)
Spectrum exposure	177 s

PC mode. Mean photon arrival: T0+1755 s

N_H (Galactic)	2.09 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+4.86 × 10²⁰, -0) cm^-2
z of absorber	1.4
Photon index	1.62 (+0.08, -0.07)
Flux (0.3-10 keV) (Observed)	4.23 (+0.33, -0.25) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.37 (+0.33, -0.24) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.03 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.17 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	374.55 (344)
Spectrum exposure	2.9 ks

Late Time spectrum (T0 + 12669 to 19314 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+14405 s

N_H (Galactic)	2.09 × 10²⁰ cm^-2
N_H (intrinsic)	4 (+9, -4) × 10²¹ cm^-2
z of absorber	1.4
Photon index	2.1 (+0.6, -0.5)
Flux (0.3-10 keV) (Observed)	1.8 (+0.8, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.3 (+0.8, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.14 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.89 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	55.09 (52)
Spectrum exposure	1.4 ks