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Swift-XRT spectra of GRB 070306

Last updated after receiving ObsID 00263361015, version 6

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 1.496 (GCN 6202)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 157 to 103827 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+196 s

N_H (Galactic)	3.13 × 10²⁰ cm^-2
N_H (intrinsic)	4.2 (+0.3, -0.3) × 10²² cm^-2
z of absorber	1.496
Photon index	2.04 (+0.06, -0.06)
Flux (0.3-10 keV) (Observed)	1.94 (+0.06, -0.06) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.16 (+0.11, -0.11) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	3.76 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.13 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	689.16 (677)
Spectrum exposure	155 s

PC mode. Mean photon arrival: T0+20822 s

N_H (Galactic)	3.13 × 10²⁰ cm^-2
N_H (intrinsic)	3.6 (+0.5, -0.4) × 10²² cm^-2
z of absorber	1.496
Photon index	1.86 (+0.08, -0.08)
Flux (0.3-10 keV) (Observed)	1.15 (+0.06, -0.05) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.66 (+0.08, -0.07) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.16 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.01 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	521.18 (544)
Spectrum exposure	15.0 ks

Late Time spectrum (T0 + 4544 to 103827 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+23219 s

N_H (Galactic)	3.13 × 10²⁰ cm^-2
N_H (intrinsic)	3.6 (+0.5, -0.5) × 10²² cm^-2
z of absorber	1.496
Photon index	1.86 (+0.09, -0.09)
Flux (0.3-10 keV) (Observed)	1.04 (+0.05, -0.05) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.50 (+0.08, -0.07) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.15 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.99 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	475.98 (521)
Spectrum exposure	14.4 ks