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Swift-XRT spectra of GRB 111225A

Last updated after receiving ObsID 00510341005, version 12

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 0.297 (GCN 16079)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 94 to 93185 s)

Download spectral files for Time-averaged spectrum.

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+199 s

N_H (Galactic)	2.75 × 10²¹ cm^-2
N_H (intrinsic)	0 (+8.01 × 10¹⁹, -0) cm^-2
z of absorber	0.297
Photon index	2.37 (+0.04, -0.03)
Flux (0.3-10 keV) (Observed)	6.10 (+0.17, -0.13) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.089 (+0.023, -0.023) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	2.95 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.27 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	703.41 (634)
Spectrum exposure	363 s

PC mode. Mean photon arrival: T0+7590 s

N_H (Galactic)	2.75 × 10²¹ cm^-2
N_H (intrinsic)	0 (+1.49 × 10²¹, -0) cm^-2
z of absorber	0.297
Photon index	1.644 (+0.234, -0.097)
Flux (0.3-10 keV) (Observed)	1.03 (+0.11, -0.14) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.30 (+0.11, -0.10) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.52 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.70 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	255.12 (274)
Spectrum exposure	37.4 ks

Late Time spectrum (T0 + 4377 to 93185 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22754 s

N_H (Galactic)	2.75 × 10²¹ cm^-2
N_H (intrinsic)	4 (+7, -4) × 10²¹ cm^-2
z of absorber	0.297
Photon index	1.9 (+0.5, -0.4)
Flux (0.3-10 keV) (Observed)	2.3 (+0.6, -0.5) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.50 (+1.44, -0.66) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.25 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.55 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	119.10 (123)
Spectrum exposure	36.8 ks