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Swift-XRT spectra of GRB 141121A

Last updated after receiving ObsID 00619182020, version 14

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.47 (GCN 17081)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 368 to 28323 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+440 s

N_H (Galactic)	4.28 × 10²⁰ cm^-2
N_H (intrinsic)	9.7 (+1.2, -1.1) × 10²¹ cm^-2
z of absorber	1.47
Photon index	1.56 (+0.04, -0.04)
Flux (0.3-10 keV) (Observed)	2.36 (+0.06, -0.06) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.73 (+0.06, -0.05) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.35 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.03 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	760.30 (737)
Spectrum exposure	203 s

PC mode. Mean photon arrival: T0+11352 s

N_H (Galactic)	4.28 × 10²⁰ cm^-2
N_H (intrinsic)	4.4 (+2.4, -2.2) × 10²¹ cm^-2
z of absorber	1.47
Photon index	1.90 (+0.12, -0.12)
Flux (0.3-10 keV) (Observed)	1.13 (+0.09, -0.09) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.35 (+0.09, -0.08) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.49 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.17 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	318.18 (342)
Spectrum exposure	4.8 ks

Late Time spectrum (T0 + 5532 to 28323 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11352 s

N_H (Galactic)	4.28 × 10²⁰ cm^-2
N_H (intrinsic)	4.4 (+2.4, -2.2) × 10²¹ cm^-2
z of absorber	1.47
Photon index	1.90 (+0.12, -0.12)
Flux (0.3-10 keV) (Observed)	1.13 (+0.09, -0.09) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.35 (+0.09, -0.08) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.49 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.17 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	318.16 (342)
Spectrum exposure	4.8 ks