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Swift-XRT spectra of GRB 240912A

Last updated after receiving ObsID 01253910015, version 38

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.234 (GCN 37469)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 109 to 45682 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+403 s

N_H (Galactic)	5.56 × 10²⁰ cm^-2
N_H (intrinsic)	2.36 (+0.29, -0.28) × 10²¹ cm^-2
z of absorber	1.234
Photon index	1.931 (+0.020, -0.020)
Flux (0.3-10 keV) (Observed)	2.047 (+0.026, -0.026) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.449 (+0.025, -0.025) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	3.39 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.05 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	876.66 (823)
Spectrum exposure	955 s

PC mode. Mean photon arrival: T0+13023 s

N_H (Galactic)	5.56 × 10²⁰ cm^-2
N_H (intrinsic)	7.3 (+12.2, -7.3) × 10²⁰ cm^-2
z of absorber	1.234
Photon index	1.83 (+0.09, -0.08)
Flux (0.3-10 keV) (Observed)	2.33 (+0.14, -0.13) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.64 (+0.13, -0.12) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.65 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.13 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	377.60 (429)
Spectrum exposure	6.0 ks

Late Time spectrum (T0 + 4821 to 45682 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16637 s

N_H (Galactic)	5.56 × 10²⁰ cm^-2
N_H (intrinsic)	2.2 (+1.6, -1.5) × 10²¹ cm^-2
z of absorber	1.234
Photon index	1.83 (+0.10, -0.10)
Flux (0.3-10 keV) (Observed)	1.74 (+0.12, -0.11) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.02 (+0.11, -0.11) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.71 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.32 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	343.55 (397)
Spectrum exposure	5.6 ks