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Swift-XRT spectra of GRB 080409

Last updated after receiving ObsID 00308812002, version 12

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 87 to 46283 s)

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PC mode spectrum of Time-averaged

WT mode. Mean photon arrival: T0+90 s

Can't find a valid fit for this spectrum

PC mode. Mean photon arrival: T0+7647 s

N_H (Galactic)	3.72 × 10²¹ cm^-2
N_H (intrinsic)	3.7 (+3.4, -2.7) × 10²¹ cm^-2
z of absorber	0
Photon index	1.9 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	8.0 (+1.7, -1.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.35 (+0.48, -0.24) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.67 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.85 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	128.98 (159)
Spectrum exposure	19.7 ks

Late Time spectrum (T0 + 4643 to 46283 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+15168 s

N_H (Galactic)	3.72 × 10²¹ cm^-2
N_H (intrinsic)	4 (+5, -4) × 10²¹ cm^-2
z of absorber	0
Photon index	2.0 (+0.6, -0.5)
Flux (0.3-10 keV) (Observed)	4.6 (+1.4, -1.1) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.0 (+4.9, -2.0) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.53 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.98 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	62.07 (86)
Spectrum exposure	18.8 ks