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Swift-XRT spectra of GRB 080229A

Last updated after receiving ObsID 00304379006, version 18

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 96 to 17180 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+129 s

N_H (Galactic)	1.31 × 10²¹ cm^-2
N_H (intrinsic)	2.69 (+0.28, -0.27) × 10²¹ cm^-2
z of absorber	0
Photon index	2.79 (+0.09, -0.08)
Flux (0.3-10 keV) (Observed)	1.25 (+0.04, -0.04) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.45 (+0.29, -0.23) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	2.67 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.35 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	490.61 (499)
Spectrum exposure	131 s

PC mode. Mean photon arrival: T0+4890 s

N_H (Galactic)	1.31 × 10²¹ cm^-2
N_H (intrinsic)	1.9 (+0.4, -0.3) × 10²¹ cm^-2
z of absorber	0
Photon index	1.66 (+0.07, -0.07)
Flux (0.3-10 keV) (Observed)	1.56 (+0.07, -0.06) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.01 (+0.07, -0.06) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.62 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.95 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	595.84 (636)
Spectrum exposure	7.3 ks

Late Time spectrum (T0 + 5505 to 17180 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8875 s

N_H (Galactic)	1.31 × 10²¹ cm^-2
N_H (intrinsic)	1.6 (+0.5, -0.5) × 10²¹ cm^-2
z of absorber	0
Photon index	1.64 (+0.10, -0.10)
Flux (0.3-10 keV) (Observed)	7.9 (+0.5, -0.5) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.9 (+0.5, -0.4) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.63 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.84 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	428.80 (514)
Spectrum exposure	5.2 ks