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Catalogue XRT results for GRB 080905B

Data were analysed using HEASOFT version 6.32

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Summary Information

RA:20h 06m 57.93sLC breaks:3
Dec:-62° 33′ 46.8′′LC type:Canonical.
Err:1.4′′NH,intr.:3.41×1022 cm-2
Gal long:334.062Redshift2.374
Gal lat:-32.507Γ1.8
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Jump to: Light curve | Spectra | Compare to other bursts.

If you use any of these data, please cite Evans et al. (2009), which describes how these products were created (see the usage policy for more information).

Light curve

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This light curve comes from the light curve repository (if you use it, please cite Evans et al [2007, 2009]. Flares, marked by cross-hatched regions, are identified automatically, but may have been manually corrected. These are excluded from the fit. Any power-law breaks added to the fit must be required at the 4-σ level (according to an f-test) to be included in the best-fit. Details of all fits attempted are given below the plot. For more information see the light curve fitting documentation.

Fitted light curve of GRB 080905B

Fit Details

Nbreaksχ2dofCommentsImage
0663112Image of this fit
1374110Break required.

(2.32e-12 % probability of chance improvement)
Image of this fit
2178108Break required.

(4.07e-16 % probability of chance improvement)
Image of this fit
3143106Break required.

(1.01e-03 % probability of chance improvement).
This is the best fit.
Image of this fit
4134104Break significance <4-σ
(3.23 % probability of chance improvement)
Image of this fit
5127102Break significance <4-σ
(1.32 % probability of chance improvement)
Image of this fit

There are no flares ignored from this fit.

The best-fitting light curve has 3 breaks.

Click on the number of breaks in the table to the right to change which fit is plotted above and detailed below.

Currently showing the best fit.

α13.1 (+0.7, -0.4)
Tb,1190 (+13, -18) s
α20.47 (+0.04, -0.04)
Tb,21.63 (+0.22, -0.25) × 104 s
α32.42 (+0.28, -0.27)
Tb,35.7 (+0.5, -0.7) × 104 s
α41.27 (+0.10, -0.09)

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Spectra

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Spectra have been created for each power-law segment in the best fitting light curve (shown above). Times of flaring have not been removed, however this makes little difference to most spectra (see Fig 7/8c of Evans et al. 2009). For more information see the time-resolved spectroscopy documentation.

No spectra are available for this object.