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Swift-XRT spectra of GRB 131209A — Source 5

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+596181 s

N_H (Galactic)	3.16 × 10²¹ cm^-2
N_H (intrinsic)	1.2 (+49.0, -1.2) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.76 (+2.17, -0.94)
Flux (0.3-10 keV) (Observed)	3.6 (+2.2, -1.8) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.98 (+2.05, -0.82) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	2.59 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.41 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	8.08 (11)
Spectrum exposure	11.8 ks