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Swift-XRT spectra of GRB 100621A

Last updated after receiving ObsID 00425151021, version 11

Data were analysed using HEASOFT version 6.35.2

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The spectral fits assume a redshift: 0.542 (GCN 10876)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 79 to 42635 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+153 s

N_H (Galactic)	3.19 × 10²⁰ cm^-2
N_H (intrinsic)	2.73 (+0.13, -0.13) × 10²² cm^-2
z of absorber	0.542
Photon index	2.62 (+0.06, -0.06)
Flux (0.3-10 keV) (Observed)	4.20 (+0.10, -0.10) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.38 (+0.09, -0.08) × 10^-8 erg cm^-2 s^-1
Counts to flux (obs)	3.44 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.13 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	705.04 (702)
Spectrum exposure	322 s

PC mode. Mean photon arrival: T0+16906 s

N_H (Galactic)	3.19 × 10²⁰ cm^-2
N_H (intrinsic)	2.78 (+0.29, -0.28) × 10²² cm^-2
z of absorber	0.542
Photon index	2.22 (+0.11, -0.11)
Flux (0.3-10 keV) (Observed)	1.68 (+0.09, -0.08) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.7 (+0.4, -0.3) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.24 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	9.40 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	481.53 (538)
Spectrum exposure	15.6 ks

Late Time spectrum (T0 + 5663 to 42635 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22158 s

N_H (Galactic)	3.19 × 10²⁰ cm^-2
N_H (intrinsic)	2.9 (+0.3, -0.3) × 10²² cm^-2
z of absorber	0.542
Photon index	2.35 (+0.13, -0.13)
Flux (0.3-10 keV) (Observed)	1.04 (+0.06, -0.06) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.61 (+0.37, -0.28) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.03 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.01 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	467.21 (485)
Spectrum exposure	13.6 ks