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Swift-XRT spectra of GRB 080307

Last updated after receiving ObsID 00305011032, version 22

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 105 to 74094 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+310 s

N_H (Galactic)	2.58 × 10²⁰ cm^-2
N_H (intrinsic)	3.2 (+1.6, -1.5) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.40 (+0.05, -0.05)
Flux (0.3-10 keV) (Observed)	5.15 (+0.20, -0.19) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.44 (+0.16, -0.14) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.58 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.84 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	703.09 (676)
Spectrum exposure	507 s

PC mode. Mean photon arrival: T0+4348 s

N_H (Galactic)	2.58 × 10²⁰ cm^-2
N_H (intrinsic)	10 (+6, -5) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.68 (+0.18, -0.17)
Flux (0.3-10 keV) (Observed)	2.33 (+0.28, -0.25) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.70 (+0.24, -0.22) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.07 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.72 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	244.96 (293)
Spectrum exposure	18.2 ks

Late Time spectrum (T0 + 4320 to 74094 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11296 s

N_H (Galactic)	2.58 × 10²⁰ cm^-2
N_H (intrinsic)	1.32 (+1.15, -0.93) × 10²¹ cm^-2
z of absorber	0
Photon index	1.9 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	4.81 (+1.12, -0.87) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.13 (+1.02, -0.89) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.68 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.68 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	93.06 (149)
Spectrum exposure	17.7 ks