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Swift-XRT spectra of GRB 070809

Last updated after receiving ObsID 00287344002, version 6.

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Time-averaged spectrum (T0 + 80 to 24571 s)

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PC mode spectrum of GRB 070809

PC mode. Mean photon arrival: T0+7371 s

N_H (Galactic)	6.4 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+5.0 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.37 (+0.21, -0.11)
Flux (0.3-10 keV) (Observed)	1.79 (+0.21, -0.24) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.92 (+0.20, -0.23) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.3 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.7 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	181.69 (222)
Exposure time	11.0 ks

Late Time spectrum (T0 + 5322 to 24571 s)

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PC mode spectrum of GRB 070809

PC mode. Mean photon arrival: T0+11764 s

N_H (Galactic)	6.4 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+6.2 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.22 (+0.23, -0.17)
Flux (0.3-10 keV) (Observed)	1.43 (+0.24, -0.23) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.51 (+0.21, -0.24) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.9 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.2 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	140.63 (154)
Exposure time	9.2 ks