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Swift-XRT spectra of GRB 210509A

Last updated after receiving ObsID 01047531004, version 9

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 3209 to 27477 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+6922 s

N_H (Galactic)	7.11 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+8.07 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.63 (+0.33, -0.17)
Flux (0.3-10 keV) (Observed)	1.60 (+0.30, -0.32) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.75 (+0.29, -0.33) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.09 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.48 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	108.42 (114)
Spectrum exposure	4.7 ks

Late Time spectrum (T0 + 4001 to 27477 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8650 s

N_H (Galactic)	7.11 × 10²⁰ cm^-2
N_H (intrinsic)	9.5 (+1.42 × 10³, -9.5) × 10¹⁸ cm^-2
z of absorber	0
Photon index	1.69 (+0.46, -0.25)
Flux (0.3-10 keV) (Observed)	1.25 (+0.30, -0.30) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.39 (+0.32, -0.27) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.97 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.41 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	63.39 (77)
Spectrum exposure	3.9 ks