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Swift-XRT spectra of GRB 130912A

Last updated after receiving ObsID 00570465003, version 9

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 97 to 36233 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+99 s

Can't find a valid fit for this spectrum

PC mode. Mean photon arrival: T0+3954 s

N_H (Galactic)	2.22 × 10²¹ cm^-2
N_H (intrinsic)	0 (+9.05 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.431 (+0.218, -0.100)
Flux (0.3-10 keV) (Observed)	4.5 (+0.4, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.2 (+0.4, -0.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.00 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.81 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	206.94 (277)
Spectrum exposure	15.6 ks

Late Time spectrum (T0 + 4801 to 36233 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+14850 s

N_H (Galactic)	2.22 × 10²¹ cm^-2
N_H (intrinsic)	0 (+1.05 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.78 (+0.34, -0.22)
Flux (0.3-10 keV) (Observed)	5.9 (+1.1, -1.3) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.3 (+1.5, -1.2) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.97 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.90 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	88.61 (89)
Spectrum exposure	14.2 ks