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Swift-XRT spectra of GRB 070224

Last updated after receiving ObsID 00261880011, version 19

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 149 to 151766 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+170 s

N_H (Galactic)	4.45 × 10²⁰ cm^-2
N_H (intrinsic)	1.6 (+60.8, -1.6) × 10¹⁹ cm^-2
z of absorber	0
Photon index	2.66 (+0.41, -0.21)
Flux (0.3-10 keV) (Observed)	1.49 (+0.17, -0.21) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.9 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.43 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.07 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	99.80 (137)
Spectrum exposure	45 s

PC mode. Mean photon arrival: T0+16960 s

N_H (Galactic)	4.45 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+5.88 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	2.11 (+0.31, -0.21)
Flux (0.3-10 keV) (Observed)	5.0 (+0.8, -0.7) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.7 (+0.9, -0.8) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.00 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.41 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	108.62 (128)
Spectrum exposure	19.2 ks

Late Time spectrum (T0 + 6749 to 151766 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+50847 s

N_H (Galactic)	4.45 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+1.12 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.68 (+0.57, -0.30)
Flux (0.3-10 keV) (Observed)	1.9 (+0.6, -0.6) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.0 (+0.5, -0.5) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.94 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.26 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	45.25 (53)
Spectrum exposure	18.0 ks