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Swift-XRT spectra of GRB 110801A

Last updated after receiving ObsID 00458521009, version 16

Data were analysed using HEASOFT version 6.29

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.858 (GCN 12234)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 105 to 64508 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+369 s

N_H (Galactic)	8.22 × 10²⁰ cm^-2
N_H (intrinsic)	4.8 (+0.9, -0.9) × 10²¹ cm^-2
z of absorber	1.858
Photon index	1.607 (+0.024, -0.024)
Flux (0.3-10 keV) (Observed)	2.24 (+0.04, -0.04) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.56 (+0.04, -0.03) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.12 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.70 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	757.89 (811)
Spectrum exposure	564 s

PC mode. Mean photon arrival: T0+10094 s

N_H (Galactic)	8.22 × 10²⁰ cm^-2
N_H (intrinsic)	2.5 (+2.5, -2.4) × 10²¹ cm^-2
z of absorber	1.858
Photon index	1.98 (+0.10, -0.09)
Flux (0.3-10 keV) (Observed)	5.9 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.2 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.33 × 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?	359.65 (404)
Spectrum exposure	15.4 ks

Late Time spectrum (T0 + 4495 to 64508 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12521 s

N_H (Galactic)	8.22 × 10²⁰ cm^-2
N_H (intrinsic)	4.0 (+3.0, -2.8) × 10²¹ cm^-2
z of absorber	1.858
Photon index	2.00 (+0.11, -0.11)
Flux (0.3-10 keV) (Observed)	4.07 (+0.29, -0.26) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.12 (+0.29, -0.28) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.31 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.16 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	317.06 (374)
Spectrum exposure	15.0 ks