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Swift-XRT spectra of GRB 131209A — Source 9

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+421389 s

N_H (Galactic)	3.15 × 10²¹ cm^-2
N_H (intrinsic)	1.8 (+3.3, -1.8) × 10²² cm^-2
z of absorber	0
Photon index	2.9 (+2.0, -2.0)
Flux (0.3-10 keV) (Observed)	3.0 (+6.1, -2.0) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.6 (+1.00 × 10¹³, -2.1) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.91 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.46 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	8.10 (3)
Spectrum exposure	10.8 ks