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Swift-XRT spectra of GRB 130511A

Last updated after receiving ObsID 00555600001, version 18

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.3033 (GCN 14621)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 78 to 100459 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+3046 s

N_H (Galactic)	2.26 × 10²⁰ cm^-2
N_H (intrinsic)	7.5 (+3.4, -2.9) × 10²¹ cm^-2
z of absorber	1.3033
Photon index	1.87 (+0.17, -0.17)
Flux (0.3-10 keV) (Observed)	1.80 (+0.22, -0.19) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.22 (+0.20, -0.19) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.62 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.45 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	256.94 (264)
Spectrum exposure	17.9 ks

Late Time spectrum (T0 + 7150 to 100459 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19973 s

N_H (Galactic)	2.26 × 10²⁰ cm^-2
N_H (intrinsic)	9.5 (+10.9, -7.8) × 10²¹ cm^-2
z of absorber	1.3033
Photon index	2.5 (+0.7, -0.6)
Flux (0.3-10 keV) (Observed)	1.5 (+0.6, -0.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.52 (+1.83, -0.70) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	2.73 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.51 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	33.97 (55)
Spectrum exposure	15.9 ks