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Swift-XRT spectra of GRB 110128A

Last updated after receiving ObsID 00443861013, version 11

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 2.339 (GCN 11607)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 147 to 69498 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+9812 s

N_H (Galactic)	9.28 × 10¹⁹ cm^-2
N_H (intrinsic)	0 (+5.38 × 10²¹, -0) cm^-2
z of absorber	2.339
Photon index	1.66 (+0.25, -0.14)
Flux (0.3-10 keV) (Observed)	5.0 (+0.7, -0.9) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.1 (+0.7, -0.6) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.78 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.86 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	146.99 (164)
Spectrum exposure	23.7 ks

Late Time spectrum (T0 + 4307 to 69498 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+21977 s

N_H (Galactic)	9.28 × 10¹⁹ cm^-2
N_H (intrinsic)	0 (+1.41 × 10²², -0) cm^-2
z of absorber	2.339
Photon index	1.75 (+0.42, -0.26)
Flux (0.3-10 keV) (Observed)	2.1 (+0.5, -0.5) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.1 (+0.6, -0.5) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.59 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.65 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	61.93 (81)
Spectrum exposure	22.8 ks