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Swift-XRT spectra of GRB 151229A

Last updated after receiving ObsID 00668689002, version 5

Data were analysed using HEASOFT version 6.29

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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)	5.4 (+2.5, -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)	3.35 (+1.11, -0.53) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.66 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.58 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	151.27 (200)
Spectrum exposure	63 s

PC mode. Mean photon arrival: T0+9826 s

N_H (Galactic)	2.71 × 10²⁰ cm^-2
N_H (intrinsic)	6.86 (+1.05, -0.97) × 10²¹ cm^-2
z of absorber	0
Photon index	2.03 (+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)	4.31 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.68 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	401.19 (446)
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+14586 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)	4.6 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.26 (+1.13, -0.63) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.18 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.59 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	321.62 (369)
Spectrum exposure	11.7 ks