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Swift-XRT spectra of GRB 151215A

Last updated after receiving ObsID 00667392008, version 8

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 2.59 (GCN 18696)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 172 to 35682 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+175 s

N_H (Galactic)	4.02 × 10²¹ cm^-2
N_H (intrinsic)	0 (+4.86 × 10²³, -0) cm^-2
z of absorber	2.59
Photon index	1.8 (+3.2, -1.8)
Flux (0.3-10 keV) (Observed)	2.4 (+2.9, -1.8) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.4 (+1.00 × 10¹⁰, -2.1) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.86 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.75 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	1.18 (1)
Spectrum exposure	5 s

PC mode. Mean photon arrival: T0+3163 s

N_H (Galactic)	4.02 × 10²¹ cm^-2
N_H (intrinsic)	0 (+9.17 × 10²¹, -0) cm^-2
z of absorber	2.59
Photon index	2.17 (+0.18, -0.17)
Flux (0.3-10 keV) (Observed)	2.9 (+0.3, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.1 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.56 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.14 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	151.72 (192)
Spectrum exposure	7.4 ks

Late Time spectrum (T0 + 8141 to 35682 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17718 s

N_H (Galactic)	4.02 × 10²¹ cm^-2
N_H (intrinsic)	1.6 (+11.0, -1.6) × 10²² cm^-2
z of absorber	2.59
Photon index	2.3 (+0.9, -0.6)
Flux (0.3-10 keV) (Observed)	3.9 (+2.1, -1.3) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.8 (+11.0, -2.3) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.42 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.91 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	32.89 (31)
Spectrum exposure	5.0 ks