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Swift-XRT spectra of GRB 250101A

Last updated after receiving ObsID 01278305001, version 8

Data were analysed using HEASOFT version 6.32

About these products.

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Add time-sliced spectrum.

The spectral fits assume a redshift: 2.49 (GCN 38759)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 131 to 44403 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+136 s

N_H (Galactic)	1.44 × 10²¹ cm^-2
N_H (intrinsic)	1.9 (+4.5, -1.5) × 10²³ cm^-2
z of absorber	2.49
Photon index	4.7 (+8.3, -1.1)
Flux (0.3-10 keV) (Observed)	5.6 (+4.2, -2.6) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.3 (+20.5, -2.1) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	2.00 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.06 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	23.82 (28)
Spectrum exposure	11 s

PC mode. Mean photon arrival: T0+10463 s

N_H (Galactic)	1.44 × 10²¹ cm^-2
N_H (intrinsic)	1.7 (+1.4, -1.1) × 10²² cm^-2
z of absorber	2.49
Photon index	2.04 (+0.18, -0.17)
Flux (0.3-10 keV) (Observed)	4.7 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.7 (+0.7, -0.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.55 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.06 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	268.56 (284)
Spectrum exposure	7.5 ks

Late Time spectrum (T0 + 4206 to 44403 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16644 s

N_H (Galactic)	1.44 × 10²¹ cm^-2
N_H (intrinsic)	1.3 (+1.7, -1.3) × 10²² cm^-2
z of absorber	2.49
Photon index	1.99 (+0.23, -0.21)
Flux (0.3-10 keV) (Observed)	2.8 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.8 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.59 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.93 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	195.01 (224)
Spectrum exposure	6.7 ks