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Swift-XRT spectra of GRB 151229A

Last updated after receiving ObsID 00668689002, version 5

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 90 to 46723 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+121 s

N_H (Galactic)	2.71 × 10²⁰ cm^-2
N_H (intrinsic)	5.3 (+2.4, -1.9) × 10²¹ cm^-2
z of absorber	0
Photon index	2.1 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	1.86 (+0.33, -0.28) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.32 (+1.03, -0.51) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.67 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.53 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	151.02 (200)
Spectrum exposure	63 s

PC mode. Mean photon arrival: T0+9879 s

N_H (Galactic)	2.71 × 10²⁰ cm^-2
N_H (intrinsic)	6.90 (+1.06, -0.97) × 10²¹ cm^-2
z of absorber	0
Photon index	2.04 (+0.14, -0.14)
Flux (0.3-10 keV) (Observed)	8.4 (+0.6, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.50 (+0.10, -0.11) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.30 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.71 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	400.92 (445)
Spectrum exposure	12.3 ks

Late Time spectrum (T0 + 4064 to 46723 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+14648 s

N_H (Galactic)	2.71 × 10²⁰ cm^-2
N_H (intrinsic)	6.6 (+1.3, -1.1) × 10²¹ cm^-2
z of absorber	0
Photon index	2.07 (+0.17, -0.17)
Flux (0.3-10 keV) (Observed)	4.5 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.23 (+1.15, -0.61) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.16 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.58 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	313.24 (367)
Spectrum exposure	11.7 ks