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Swift-XRT spectra of GRB 100915A

Last updated after receiving ObsID 00434178002, version 10

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 138 to 42013 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+177 s

N_H (Galactic)	3.67 × 10²¹ cm^-2
N_H (intrinsic)	5.2 (+2.9, -2.4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.42 (+0.24, -0.23)
Flux (0.3-10 keV) (Observed)	5.9 (+0.8, -0.7) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.9 (+0.9, -0.7) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	5.98 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.91 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	321.88 (379)
Spectrum exposure	87 s

PC mode. Mean photon arrival: T0+5089 s

N_H (Galactic)	3.67 × 10²¹ cm^-2
N_H (intrinsic)	4.0 (+1.9, -1.7) × 10²¹ cm^-2
z of absorber	0
Photon index	1.63 (+0.20, -0.19)
Flux (0.3-10 keV) (Observed)	4.5 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.4 (+0.4, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.55 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.91 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	269.59 (354)
Spectrum exposure	16.6 ks

Late Time spectrum (T0 + 4910 to 42013 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+10878 s

N_H (Galactic)	3.67 × 10²¹ cm^-2
N_H (intrinsic)	4.2 (+2.7, -2.3) × 10²¹ cm^-2
z of absorber	0
Photon index	2.0 (+0.3, -0.3)
Flux (0.3-10 keV) (Observed)	1.09 (+0.19, -0.16) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.00 (+0.61, -0.22) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.42 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.13 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	138.65 (191)
Spectrum exposure	15.3 ks