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Swift-XRT spectra of GRB 100302A

Last updated after receiving ObsID 00414592012, version 14

Data were analysed using HEASOFT version 6.35.2

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The spectral fits assume a redshift: 4.813 (GCN 10466)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 131 to 88685 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+270 s

N_H (Galactic)	2.05 × 10²⁰ cm^-2
N_H (intrinsic)	6.4 (+0.8, -0.7) × 10²² cm^-2
z of absorber	4.813
Photon index	2.75 (+0.06, -0.06)
Flux (0.3-10 keV) (Observed)	4.80 (+0.13, -0.13) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.9 (+0.4, -0.3) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.42 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.97 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	436.24 (440)
Spectrum exposure	328 s

PC mode. Mean photon arrival: T0+19390 s

N_H (Galactic)	2.05 × 10²⁰ cm^-2
N_H (intrinsic)	9.4 (+22.8, -9.4) × 10²¹ cm^-2
z of absorber	4.813
Photon index	1.88 (+0.16, -0.14)
Flux (0.3-10 keV) (Observed)	1.01 (+0.11, -0.10) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.09 (+0.10, -0.09) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.37 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.63 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	206.38 (258)
Spectrum exposure	33.9 ks

Late Time spectrum (T0 + 5461 to 88685 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+34141 s

N_H (Galactic)	2.05 × 10²⁰ cm^-2
N_H (intrinsic)	2.2 (+3.5, -2.2) × 10²² cm^-2
z of absorber	4.813
Photon index	1.82 (+0.22, -0.21)
Flux (0.3-10 keV) (Observed)	4.8 (+0.7, -0.6) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.3 (+0.6, -0.6) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.52 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.89 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	151.07 (188)
Spectrum exposure	32.5 ks