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Swift-XRT spectra of GRB 090727

Last updated after receiving ObsID 00358520026, version 16

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 91 to 57842 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+276 s

N_H (Galactic)	3.91 × 10²¹ cm^-2
N_H (intrinsic)	4.0 (+2.2, -1.9) × 10²¹ cm^-2
z of absorber	0
Photon index	1.36 (+0.19, -0.18)
Flux (0.3-10 keV) (Observed)	1.46 (+0.15, -0.14) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.86 (+0.16, -0.14) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	6.31 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.06 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	315.78 (425)
Spectrum exposure	51 s

PC mode. Mean photon arrival: T0+13914 s

N_H (Galactic)	3.91 × 10²¹ cm^-2
N_H (intrinsic)	0 (+8.10 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.59 (+0.16, -0.12)
Flux (0.3-10 keV) (Observed)	1.98 (+0.22, -0.22) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.52 (+0.24, -0.26) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.97 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.35 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	199.38 (274)
Spectrum exposure	24.0 ks

Late Time spectrum (T0 + 4000 to 57842 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+24283 s

N_H (Galactic)	3.91 × 10²¹ cm^-2
N_H (intrinsic)	0 (+1.29 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	2.04 (+0.33, -0.14)
Flux (0.3-10 keV) (Observed)	5.7 (+0.8, -0.9) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.07 (+1.80, -0.67) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.77 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.01 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	135.90 (167)
Spectrum exposure	23.8 ks