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Swift-XRT spectra of GRB 090709A

Last updated after receiving ObsID 00356890011, version 5

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.8 (Perley et al. 2013)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 74 to 62658 s)

Download spectral files for Time-averaged spectrum.

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+235 s

N_H (Galactic)	8.44 × 10²⁰ cm^-2
N_H (intrinsic)	1.43 (+0.15, -0.15) × 10²² cm^-2
z of absorber	1.8
Photon index	1.62 (+0.03, -0.03)
Flux (0.3-10 keV) (Observed)	2.25 (+0.05, -0.05) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.71 (+0.05, -0.05) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.34 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.22 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	748.79 (804)
Spectrum exposure	394 s

PC mode. Mean photon arrival: T0+19305 s

N_H (Galactic)	8.44 × 10²⁰ cm^-2
N_H (intrinsic)	2.2 (+0.4, -0.3) × 10²² cm^-2
z of absorber	1.8
Photon index	1.80 (+0.07, -0.07)
Flux (0.3-10 keV) (Observed)	1.97 (+0.09, -0.08) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.60 (+0.09, -0.09) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.08 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.38 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	515.53 (578)
Spectrum exposure	16.9 ks

Late Time spectrum (T0 + 4111 to 62658 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19303 s

N_H (Galactic)	8.44 × 10²⁰ cm^-2
N_H (intrinsic)	2.2 (+0.4, -0.3) × 10²² cm^-2
z of absorber	1.8
Photon index	1.80 (+0.07, -0.07)
Flux (0.3-10 keV) (Observed)	1.97 (+0.09, -0.08) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.60 (+0.09, -0.09) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.08 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.38 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	515.57 (578)
Spectrum exposure	16.9 ks