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Swift-XRT spectra of GRB 150222A

Last updated after receiving ObsID 00632180003, version 13

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 96 to 63422 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+229 s

N_H (Galactic)	3.31 × 10²⁰ cm^-2
N_H (intrinsic)	5.3 (+0.6, -0.5) × 10²¹ cm^-2
z of absorber	0
Photon index	2.61 (+0.12, -0.12)
Flux (0.3-10 keV) (Observed)	3.66 (+0.19, -0.18) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.85 (+1.21, -0.81) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.02 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.13 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	424.06 (465)
Spectrum exposure	221 s

PC mode. Mean photon arrival: T0+8083 s

N_H (Galactic)	3.31 × 10²⁰ cm^-2
N_H (intrinsic)	5.3 (+1.0, -0.9) × 10²¹ cm^-2
z of absorber	0
Photon index	2.32 (+0.18, -0.18)
Flux (0.3-10 keV) (Observed)	5.3 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.11 (+0.07, -0.07) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.53 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.36 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	300.10 (336)
Spectrum exposure	11.0 ks

Late Time spectrum (T0 + 4456 to 63422 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+15477 s

N_H (Galactic)	3.31 × 10²⁰ cm^-2
N_H (intrinsic)	4.7 (+1.3, -1.1) × 10²¹ cm^-2
z of absorber	0
Photon index	2.32 (+0.26, -0.24)
Flux (0.3-10 keV) (Observed)	1.93 (+0.25, -0.22) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.9 (+1.0, -0.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.45 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.00 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	186.84 (233)
Spectrum exposure	10.1 ks