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Swift-XRT spectra of GRB 130315A

Last updated after receiving ObsID 00551126004, version 9

Data were analysed using HEASOFT version 6.15.1

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 167 to 56830 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+244 s

N_H (Galactic)	3.63 × 10²¹ cm^-2
N_H (intrinsic)	0 (+1.30 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.388 (+0.038, -0.016)
Flux (0.3-10 keV) (Observed)	2.48 (+0.06, -0.05) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.93 (+0.04, -0.06) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	5.39 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.37 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	789.00 (798)
Spectrum exposure	292 s

PC mode. Mean photon arrival: T0+12555 s

N_H (Galactic)	3.63 × 10²¹ cm^-2
N_H (intrinsic)	2.3 (+14.1, -2.3) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.91 (+0.26, -0.19)
Flux (0.3-10 keV) (Observed)	1.34 (+0.20, -0.18) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.97 (+0.32, -0.18) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.09 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.02 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	168.81 (231)
Spectrum exposure	16.9 ks

Late Time spectrum (T0 + 4000 to 56830 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19530 s

N_H (Galactic)	3.63 × 10²¹ cm^-2
N_H (intrinsic)	2.9 (+21.2, -2.9) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.87 (+0.37, -0.24)
Flux (0.3-10 keV) (Observed)	6.7 (+1.3, -1.1) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.8 (+2.3, -1.2) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.23 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.15 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	115.41 (167)
Spectrum exposure	16.7 ks