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Swift-XRT spectra of GRB 100725A

Last updated after receiving ObsID 00429954003, version 10.

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Time-averaged spectrum (T0 + 82 to 58717 s)

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WT and PC mode spectra of GRB 100725A

WT mode. Mean photon arrival: T0+151 s

N_H (Galactic)	4.6 × 10²⁰ cm^-2
N_H (intrinsic)	8.7 (+3.3, -3.1) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.208 (+0.088, -0.087)
Flux (0.3-10 keV) (Observed)	8.66 (+0.50, -0.47) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.49 (+0.42, -0.42) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	5.7 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.3 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	644.29 (569)
Exposure time	178 s

PC mode. Mean photon arrival: T0+1418 s

N_H (Galactic)	4.6 × 10²⁰ cm^-2
N_H (intrinsic)	6.3 (+10.3, -6.3) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.87 (+0.40, -0.35)
Flux (0.3-10 keV) (Observed)	1.32 (+0.31, -0.25) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.64 (+0.29, -0.26) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.0 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.0 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	101.60 (132)
Exposure time	10.4 ks

Late Time spectrum (T0 + 4898 to 58717 s)

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PC mode spectrum of GRB 100725A

PC mode. Mean photon arrival: T0+15090 s

N_H (Galactic)	4.6 × 10²⁰ cm^-2
N_H (intrinsic)	5.8 (+26.3, -5.8) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.33 (+2.21, -0.97)
Flux (0.3-10 keV) (Observed)	5.4 (+5.2, -2.8) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.0 (1.00 × 10¹⁴, -4.3) × 10^-14 erg cm^-2 s^-1
Counts to flux (obs)	3.2 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.7 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	12.55 (9)
Exposure time	8.9 ks