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Swift-XRT spectra of GRB 130420A

Last updated after receiving ObsID 00553977022, version 13

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.297 (GCN 14437)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 742 to 43349 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+9683 s

N_H (Galactic)	1.30 × 10²⁰ cm^-2
N_H (intrinsic)	3.9 (+1.4, -1.3) × 10²¹ cm^-2
z of absorber	1.297
Photon index	2.13 (+0.11, -0.10)
Flux (0.3-10 keV) (Observed)	5.2 (+0.3, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.4 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.05 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.71 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	343.00 (355)
Spectrum exposure	12.0 ks

Late Time spectrum (T0 + 6553 to 43349 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17983 s

N_H (Galactic)	1.30 × 10²⁰ cm^-2
N_H (intrinsic)	5.0 (+2.2, -2.0) × 10²¹ cm^-2
z of absorber	1.297
Photon index	2.09 (+0.16, -0.15)
Flux (0.3-10 keV) (Observed)	3.03 (+0.29, -0.26) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.75 (+0.31, -0.28) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.13 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.88 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	259.35 (277)
Spectrum exposure	9.8 ks