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Swift-XRT spectra of GRB 050509B

Last updated after receiving ObsID 00118749000, version 31

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 0.225 (GCN 3399)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 61 to 76706 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+28422 s

N_H (Galactic)	1.63 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+3.14 × 10²¹, -0) cm^-2
z of absorber	0.225
Photon index	1.5 (+0.9, -0.4)
Flux (0.3-10 keV) (Observed)	6.4 (+2.7, -2.8) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.6 (+2.7, -2.3) × 10^-14 erg cm^-2 s^-1
Counts to flux (obs)	4.36 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.47 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	37.93 (37)
Spectrum exposure	34.7 ks

Late Time spectrum (T0 + 5272 to 76706 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+41934 s

N_H (Galactic)	1.63 × 10²⁰ cm^-2
N_H (intrinsic)	4 (+9, -4) × 10²¹ cm^-2
z of absorber	0.225
Photon index	2.0 (+1.5, -1.1)
Flux (0.3-10 keV) (Observed)	4.2 (+4.6, -2.0) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.1 (+12.8, -2.3) × 10^-14 erg cm^-2 s^-1
Counts to flux (obs)	3.80 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.53 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	27.26 (24)
Spectrum exposure	33.0 ks