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Swift-XRT spectra of GRB 110928A

Last updated after receiving ObsID 00504215001, version 13

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 + 3341 to 40531 s)

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PC mode spectrum of Time-averaged

WT mode. Mean photon arrival: T0+3346 s

Can't find a valid fit for this spectrum

PC mode. Mean photon arrival: T0+18754 s

N_H (Galactic)	3.48 × 10²⁰ cm^-2
N_H (intrinsic)	8 (+4, -3) × 10²¹ cm^-2
z of absorber	0
Photon index	2.1 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	8.4 (+1.7, -1.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.61 (+0.77, -0.26) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.38 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.36 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	174.00 (150)
Spectrum exposure	16.4 ks

Late Time spectrum (T0 + 4000 to 40531 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+20467 s

N_H (Galactic)	3.48 × 10²⁰ cm^-2
N_H (intrinsic)	9 (+4, -3) × 10²¹ cm^-2
z of absorber	0
Photon index	2.2 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	7.7 (+1.7, -1.3) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.63 (+0.91, -0.27) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.25 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.95 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	156.06 (139)
Spectrum exposure	15.8 ks