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Swift-XRT spectra of GRB 200729A

Last updated after receiving ObsID 00984929007, version 16

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 144 to 53313 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+233 s

N_H (Galactic)	1.07 × 10²⁰ cm^-2
N_H (intrinsic)	8.7 (+1.3, -1.2) × 10²¹ cm^-2
z of absorber	0
Photon index	1.80 (+0.14, -0.13)
Flux (0.3-10 keV) (Observed)	4.7 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.5 (+0.6, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	5.00 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.97 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	511.13 (560)
Spectrum exposure	213 s

PC mode. Mean photon arrival: T0+3012 s

N_H (Galactic)	1.07 × 10²⁰ cm^-2
N_H (intrinsic)	9.2 (+3.3, -2.7) × 10²¹ cm^-2
z of absorber	0
Photon index	1.37 (+0.26, -0.24)
Flux (0.3-10 keV) (Observed)	8.13 (+1.07, -0.94) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.060 (+0.117, -0.094) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	6.76 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.82 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	272.22 (306)
Spectrum exposure	13.4 ks

Late Time spectrum (T0 + 11311 to 53313 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+25035 s

N_H (Galactic)	1.07 × 10²⁰ cm^-2
N_H (intrinsic)	1.4 (+5.1, -1.4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.0 (+0.8, -0.6)
Flux (0.3-10 keV) (Observed)	3.8 (+2.4, -1.5) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.0 (+1.5, -1.3) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	6.89 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.29 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	32.37 (34)
Spectrum exposure	11.9 ks