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Swift-XRT spectra of GRB 070729

Last updated after receiving ObsID 00286373000, version 18.

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Time-averaged spectrum (T0 + 95 to 70012 s)

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PC mode spectrum of GRB 070729

PC mode. Mean photon arrival: T0+11414 s

N_H (Galactic)	2.6 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+9.7 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.53 (+0.66, -0.43)
Flux (0.3-10 keV) (Observed)	7.9 (+3.9, -2.3) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.1 (+3.7, -2.4) × 10^-14 erg cm^-2 s^-1
Counts to flux (obs)	4.5 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.6 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	45.09 (39)
Exposure time	26.3 ks

Late Time spectrum (T0 + 4001 to 70012 s)

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PC mode spectrum of GRB 070729

PC mode. Mean photon arrival: T0+40723 s

N_H (Galactic)	2.6 × 10²⁰ cm^-2
N_H (intrinsic)	3.2 (+482.2, -3.2) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.1 (+1.2, -1.7)
Flux (0.3-10 keV) (Observed)	2.1 (+10.7, -1.4) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.2 (+4.5, -1.4) × 10^-14 erg cm^-2 s^-1
Counts to flux (obs)	5.5 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.7 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	13.32 (8)
Exposure time	25.6 ks