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Swift-XRT spectra of GRB 230409B

Last updated after receiving ObsID 01163401002, version 16

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 338 to 52116 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+347 s

N_H (Galactic)	7.56 × 10²¹ cm^-2
N_H (intrinsic)	2.0 (+2.6, -1.6) × 10²² cm^-2
z of absorber	0
Photon index	2.8 (+1.5, -1.2)
Flux (0.3-10 keV) (Observed)	1.3 (+0.7, -0.4) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8 (+1.00 × 10¹⁰, -5) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.71 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.81 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	23.48 (33)
Spectrum exposure	19 s

PC mode. Mean photon arrival: T0+7810 s

N_H (Galactic)	7.56 × 10²¹ cm^-2
N_H (intrinsic)	4.7 (+2.7, -2.4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.97 (+0.22, -0.21)
Flux (0.3-10 keV) (Observed)	1.47 (+0.14, -0.13) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.8 (+0.6, -0.4) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	5.19 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	9.93 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	307.34 (375)
Spectrum exposure	6.6 ks

Late Time spectrum (T0 + 18528 to 52116 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+35032 s

N_H (Galactic)	7.56 × 10²¹ cm^-2
N_H (intrinsic)	3 (+6, -3) × 10²¹ cm^-2
z of absorber	0
Photon index	1.8 (+0.5, -0.4)
Flux (0.3-10 keV) (Observed)	2.3 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.81 (+1.61, -0.78) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.48 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	9.12 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	114.11 (125)
Spectrum exposure	4.9 ks