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Swift-XRT spectra of GRB 120308A

Last updated after receiving ObsID 00517234004, version 24

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 98 to 54336 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+160 s

N_H (Galactic)	3.19 × 10²⁰ cm^-2
N_H (intrinsic)	1.12 (+0.15, -0.14) × 10²¹ cm^-2
z of absorber	0
Photon index	2.88 (+0.08, -0.07)
Flux (0.3-10 keV) (Observed)	1.054 (+0.029, -0.028) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.012 (+0.065, -0.113) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	2.40 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.58 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	419.34 (460)
Spectrum exposure	184 s

PC mode. Mean photon arrival: T0+8452 s

N_H (Galactic)	3.19 × 10²⁰ cm^-2
N_H (intrinsic)	2.5 (+2.3, -2.1) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.54 (+0.08, -0.08)
Flux (0.3-10 keV) (Observed)	7.5 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.0 (+0.3, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.25 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.55 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	441.68 (539)
Spectrum exposure	22.7 ks

Late Time spectrum (T0 + 5843 to 54336 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+15735 s

N_H (Galactic)	3.19 × 10²⁰ cm^-2
N_H (intrinsic)	7 (+4, -4) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.62 (+0.12, -0.11)
Flux (0.3-10 keV) (Observed)	3.36 (+0.27, -0.25) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.79 (+0.23, -0.11) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.15 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.67 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	342.52 (414)
Spectrum exposure	20.6 ks