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Swift-XRT spectra of GRB 250103B

Last updated after receiving ObsID 01278865002, version 12

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: 1.416 (GCN 38820)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 154 to 49906 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+168 s

N_H (Galactic)	9.99 × 10¹⁹ cm^-2
N_H (intrinsic)	4 (+4, -3) × 10²¹ cm^-2
z of absorber	1.416
Photon index	4.3 (+0.8, -0.6)
Flux (0.3-10 keV) (Observed)	2.06 (+0.26, -0.24) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.2 (+3.7, -1.5) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.49 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.09 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	56.06 (89)
Spectrum exposure	31 s

PC mode. Mean photon arrival: T0+5368 s

N_H (Galactic)	9.99 × 10¹⁹ cm^-2
N_H (intrinsic)	0 (+1.75 × 10²¹, -0) cm^-2
z of absorber	1.416
Photon index	2.94 (+0.38, -0.23)
Flux (0.3-10 keV) (Observed)	1.04 (+0.17, -0.17) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.10 (+0.19, -0.17) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	2.60 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.77 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	81.84 (70)
Spectrum exposure	6.0 ks

Late Time spectrum (T0 + 16906 to 49906 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode. Mean photon arrival: T0+38295 s

N_H (Galactic)	9.99 × 10¹⁹ cm^-2
N_H (intrinsic)	1.3 (+4.0, -1.2) × 10²² cm^-2
z of absorber	1.416
Photon index	3.2 (+10.3, -2.9)
Flux (0.3-10 keV) (Observed)	1.07 (+2.13, -0.61) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8 (+1.00 × 10¹³, -5) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	2.65 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.01 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	14.64 (13)
Spectrum exposure	5.5 ks