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Swift-XRT spectra of GRB 121108A

Last updated after receiving ObsID 00537921006, version 6

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 60 to 76811 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+131 s

N_H (Galactic)	3.16 × 10²¹ cm^-2
N_H (intrinsic)	1.5 (+0.7, -0.7) × 10²¹ cm^-2
z of absorber	0
Photon index	1.43 (+0.09, -0.09)
Flux (0.3-10 keV) (Observed)	1.971 (+0.104, -0.099) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.444 (+0.101, -0.078) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	5.48 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.79 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	578.14 (617)
Spectrum exposure	84 s

PC mode. Mean photon arrival: T0+8808 s

N_H (Galactic)	3.16 × 10²¹ cm^-2
N_H (intrinsic)	1.9 (+11.5, -1.9) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.67 (+0.20, -0.14)
Flux (0.3-10 keV) (Observed)	1.47 (+0.17, -0.16) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.91 (+0.16, -0.14) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.55 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.89 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	265.90 (299)
Spectrum exposure	29.4 ks

Late Time spectrum (T0 + 5197 to 76811 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22259 s

N_H (Galactic)	3.16 × 10²¹ cm^-2
N_H (intrinsic)	1.3 (+2.0, -1.3) × 10²¹ cm^-2
z of absorber	0
Photon index	2.0 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	4.2 (+0.9, -0.7) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.7 (+1.9, -1.1) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.85 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.19 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	110.27 (158)
Spectrum exposure	27.8 ks