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Swift-XRT spectra of GRB 131209A — Source 2

Last updated after receiving ObsID 00020333004, version 4

Data were analysed using HEASOFT version 6.15.1

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Time-averaged spectrum (T0 + 118584 to 2194792 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+1120329 s

N_H (Galactic)	3.17 × 10²¹ cm^-2
N_H (intrinsic)	0 (+1.37 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.9 (+0.9, -0.3)
Flux (0.3-10 keV) (Observed)	1.2 (+0.8, -0.3) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.6 (+0.9, -0.4) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.83 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.01 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	19.91 (24)
Spectrum exposure	11.8 ks