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Swift-XRT spectra of GRB 120401A

Last updated after receiving ObsID 00519043002, version 15

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 124 to 53689 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+307 s

N_H (Galactic)	3.78 × 10²⁰ cm^-2
N_H (intrinsic)	5.9 (+1.3, -1.3) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.12 (+0.06, -0.05)
Flux (0.3-10 keV) (Observed)	5.11 (+0.15, -0.15) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.45 (+0.17, -0.16) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.07 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.87 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	526.39 (608)
Spectrum exposure	500 s

PC mode. Mean photon arrival: T0+3767 s

N_H (Galactic)	3.78 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+2.61 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.67 (+0.13, -0.10)
Flux (0.3-10 keV) (Observed)	2.27 (+0.21, -0.22) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.41 (+0.19, -0.22) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.85 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.09 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	232.29 (272)
Spectrum exposure	19.0 ks

Late Time spectrum (T0 + 5009 to 53689 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+15294 s

N_H (Galactic)	3.78 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+5.86 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.82 (+0.37, -0.19)
Flux (0.3-10 keV) (Observed)	2.6 (+0.6, -0.6) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.8 (+0.5, -0.6) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.47 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.72 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	94.92 (81)
Spectrum exposure	17.9 ks