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Swift-XRT spectra of GRB 050318

Last updated after receiving ObsID 00111529004, version 41

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.44 (GCN 3122)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 3282 to 63671 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+3304 s

N_H (Galactic)	1.97 × 10²⁰ cm^-2
N_H (intrinsic)	1.3 (+19.2, -1.3) × 10²¹ cm^-2
z of absorber	1.44
Photon index	2.41 (+2.82, -0.76)
Flux (0.3-10 keV) (Observed)	4.1 (+2.5, -2.0) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.8 (+21.7, -1.9) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	2.18 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.55 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	15.06 (21)
Spectrum exposure	16 s

PC mode. Mean photon arrival: T0+15468 s

N_H (Galactic)	1.97 × 10²⁰ cm^-2
N_H (intrinsic)	1.2 (+1.3, -1.2) × 10²¹ cm^-2
z of absorber	1.44
Photon index	1.94 (+0.09, -0.09)
Flux (0.3-10 keV) (Observed)	3.25 (+0.19, -0.18) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.55 (+0.17, -0.17) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.28 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.58 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	397.51 (420)
Spectrum exposure	23.5 ks

Late Time spectrum (T0 + 4917 to 63671 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17544 s

N_H (Galactic)	1.97 × 10²⁰ cm^-2
N_H (intrinsic)	1.1 (+1.4, -1.1) × 10²¹ cm^-2
z of absorber	1.44
Photon index	1.93 (+0.10, -0.09)
Flux (0.3-10 keV) (Observed)	2.78 (+0.18, -0.17) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.02 (+0.16, -0.16) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.29 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.58 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	333.06 (396)
Spectrum exposure	23.1 ks