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Swift-XRT spectra of GRB 240809A

Last updated after receiving ObsID 01247745012, version 15

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.494 (GCN 37129)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 94 to 22936 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+520 s

N_H (Galactic)	1.45 × 10²¹ cm^-2
N_H (intrinsic)	2.5 (+0.8, -0.8) × 10²¹ cm^-2
z of absorber	1.494
Photon index	1.668 (+0.026, -0.026)
Flux (0.3-10 keV) (Observed)	1.701 (+0.030, -0.030) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.040 (+0.028, -0.028) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.16 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.98 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	893.79 (793)
Spectrum exposure	1.3 ks

PC mode. Mean photon arrival: T0+12109 s

N_H (Galactic)	1.45 × 10²¹ cm^-2
N_H (intrinsic)	2.4 (+2.7, -2.4) × 10²¹ cm^-2
z of absorber	1.494
Photon index	1.63 (+0.09, -0.08)
Flux (0.3-10 keV) (Observed)	5.2 (+0.3, -0.3) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.19 (+0.29, -0.28) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.42 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.25 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	456.19 (481)
Spectrum exposure	4.1 ks

Late Time spectrum (T0 + 4718 to 22936 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12109 s

N_H (Galactic)	1.45 × 10²¹ cm^-2
N_H (intrinsic)	2.4 (+2.7, -2.4) × 10²¹ cm^-2
z of absorber	1.494
Photon index	1.63 (+0.09, -0.08)
Flux (0.3-10 keV) (Observed)	5.2 (+0.3, -0.3) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.19 (+0.29, -0.28) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.42 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.25 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	456.19 (481)
Spectrum exposure	4.1 ks