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Swift-XRT spectra of GRB 100424A

Last updated after receiving ObsID 00420367001, version 6

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 2.465 (GCN 14291)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 126 to 30898 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+308 s

N_H (Galactic)	2.53 × 10²⁰ cm^-2
N_H (intrinsic)	2.5 (+0.5, -0.5) × 10²² cm^-2
z of absorber	2.465
Photon index	1.06 (+0.05, -0.05)
Flux (0.3-10 keV) (Observed)	9.9 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.05 (+0.03, -0.03) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	6.13 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.51 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	735.05 (723)
Spectrum exposure	509 s

PC mode. Mean photon arrival: T0+1346 s

N_H (Galactic)	2.53 × 10²⁰ cm^-2
N_H (intrinsic)	3.4 (+1.6, -1.3) × 10²² cm^-2
z of absorber	2.465
Photon index	1.47 (+0.16, -0.16)
Flux (0.3-10 keV) (Observed)	3.6 (+0.4, -0.4) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.1 (+0.4, -0.3) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.81 × 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?	221.92 (307)
Spectrum exposure	3.5 ks

Late Time spectrum (T0 + 5462 to 30898 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19006 s

N_H (Galactic)	2.53 × 10²⁰ cm^-2
N_H (intrinsic)	6 (+41, -6) × 10²² cm^-2
z of absorber	2.465
Photon index	1.7 (+2.1, -1.5)
Flux (0.3-10 keV) (Observed)	2.2 (+1.9, -1.5) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.9 (+26.6, -1.6) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.68 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.08 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	2.51 (5)
Spectrum exposure	2.1 ks