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Swift-XRT spectra of GRB 110915A

Last updated after receiving ObsID 00503219007, version 13

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 82 to 123247 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+509 s

N_H (Galactic)	6.67 × 10²⁰ cm^-2
N_H (intrinsic)	2.26 (+0.22, -0.21) × 10²¹ cm^-2
z of absorber	0
Photon index	1.79 (+0.05, -0.05)
Flux (0.3-10 keV) (Observed)	3.13 (+0.09, -0.09) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.18 (+0.09, -0.09) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.12 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.49 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	716.43 (724)
Spectrum exposure	1.3 ks

PC mode. Mean photon arrival: T0+19558 s

N_H (Galactic)	6.67 × 10²⁰ cm^-2
N_H (intrinsic)	2.8 (+0.6, -0.5) × 10²¹ cm^-2
z of absorber	0
Photon index	2.11 (+0.13, -0.13)
Flux (0.3-10 keV) (Observed)	4.7 (+0.3, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.5 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.57 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.74 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	353.00 (415)
Spectrum exposure	19.1 ks

Late Time spectrum (T0 + 5217 to 123247 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+23678 s

N_H (Galactic)	6.67 × 10²⁰ cm^-2
N_H (intrinsic)	2.8 (+0.6, -0.6) × 10²¹ cm^-2
z of absorber	0
Photon index	2.14 (+0.15, -0.14)
Flux (0.3-10 keV) (Observed)	3.55 (+0.28, -0.26) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.8 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.50 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.73 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	313.11 (387)
Spectrum exposure	18.9 ks