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Swift-XRT spectra of GRB 120729A

Last updated after receiving ObsID 00529095005, version 18.

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Time-averaged spectrum (T0 + 74 to 86054 s)

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WT and PC mode spectra of GRB 120729A

WT mode. Mean photon arrival: T0+138 s

N_H (Galactic)	1.4 × 10²¹ cm^-2
N_H (intrinsic)	5 (+4, -3) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.529 (+0.102, -0.097)
Flux (0.3-10 keV) (Observed)	6.6 (+0.4, -0.4) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.0 (+0.4, -0.3) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	5 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	495.70 (577)
Exposure time	170 s

PC mode. Mean photon arrival: T0+5443 s

N_H (Galactic)	1.4 × 10²¹ cm^-2
N_H (intrinsic)	8 (+5, -5) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.88 (+0.15, -0.14)
Flux (0.3-10 keV) (Observed)	1.98 (+0.16, -0.15) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.79 (+0.18, -0.17) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	406.13 (411)
Exposure time	36.9 ks

Late Time spectrum (T0 + 4000 to 86054 s)

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PC mode spectrum of GRB 120729A

PC mode. Mean photon arrival: T0+8169 s

N_H (Galactic)	1.4 × 10²¹ cm^-2
N_H (intrinsic)	7 (+6, -6) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.92 (+0.19, -0.18)
Flux (0.3-10 keV) (Observed)	9.64 (+1.01, -0.91) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.37 (+0.12, -0.12) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	310.56 (327)
Exposure time	36.5 ks