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Swift-XRT spectra of GRB 210901A

Last updated after receiving ObsID 01071488008, version 11

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 157 to 79864 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+197 s

N_H (Galactic)	1.02 × 10²¹ cm^-2
N_H (intrinsic)	1.7 (+0.4, -0.4) × 10²¹ cm^-2
z of absorber	0
Photon index	2.50 (+0.14, -0.13)
Flux (0.3-10 keV) (Observed)	4.58 (+0.28, -0.26) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.9 (+0.9, -0.8) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.81 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.45 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	361.69 (399)
Spectrum exposure	126 s

PC mode. Mean photon arrival: T0+10668 s

N_H (Galactic)	1.02 × 10²¹ cm^-2
N_H (intrinsic)	1.2 (+1.3, -1.1) × 10²¹ cm^-2
z of absorber	0
Photon index	2.1 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	2.0 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.84 (+0.48, -0.23) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.50 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.04 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	121.80 (145)
Spectrum exposure	5.6 ks

Late Time spectrum (T0 + 12115 to 79864 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+34613 s

N_H (Galactic)	1.02 × 10²¹ cm^-2
N_H (intrinsic)	8.8 (+27.6, -8.8) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.0 (+0.8, -0.6)
Flux (0.3-10 keV) (Observed)	5.7 (+2.8, -1.8) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.8 (+5.2, -2.0) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.65 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.96 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	40.59 (51)
Spectrum exposure	5.0 ks