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Swift-XRT spectra of GRB 110420A

Last updated after receiving ObsID 00451757021, version 17

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 93 to 42241 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+114 s

N_H (Galactic)	1.31 × 10²⁰ cm^-2
N_H (intrinsic)	1.6 (+0.5, -0.4) × 10²¹ cm^-2
z of absorber	0
Photon index	3.8 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	3.06 (+0.22, -0.21) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.025 (+1.320, -0.082) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	2.13 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.14 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	166.42 (185)
Spectrum exposure	57 s

PC mode. Mean photon arrival: T0+11853 s

N_H (Galactic)	1.31 × 10²⁰ cm^-2
N_H (intrinsic)	1.60 (+0.24, -0.23) × 10²¹ cm^-2
z of absorber	0
Photon index	1.95 (+0.07, -0.07)
Flux (0.3-10 keV) (Observed)	1.21 (+0.05, -0.05) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.59 (+0.06, -0.06) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.53 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.63 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	446.07 (539)
Spectrum exposure	17.6 ks

Late Time spectrum (T0 + 5133 to 42241 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16174 s

N_H (Galactic)	1.31 × 10²⁰ cm^-2
N_H (intrinsic)	1.44 (+0.27, -0.26) × 10²¹ cm^-2
z of absorber	0
Photon index	1.90 (+0.09, -0.08)
Flux (0.3-10 keV) (Observed)	8.3 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.05 (+0.04, -0.04) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.58 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.56 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	433.06 (499)
Spectrum exposure	16.0 ks