SIMBAD references

2009MNRAS.395..328P - Mon. Not. R. Astron. Soc., 395, 328-334 (2009/May-1)

The unusual X-ray light curve of GRB080307: the onset of the afterglow ?

PAGE K.L., WILLINGALE R., O'BRIEN P.T., TANVIR N.R., OSBORNE J.P., ZHANG B., HOLLAND S.T., LEVAN A.J., MELANDRI A., STARLING R.L.C., BERSIER D., BURROWS D.N., GEACH J.E. and MAXTED P.

Abstract (from CDS):

Swift-detected GRB080307 showed an unusual smooth rise in its X-ray light curve around 100s after the burst, at the start of which the emission briefly softened. This `hump' has a longer duration than is normal for a flare at early times and does not demonstrate a typical flare profile. Using a two-component power-law-to-exponential model, the rising emission can be modelled as the onset of the afterglow, something which is very rarely seen in Swift-X-ray light curves. We cannot, however, rule out that the hump is a particularly slow early-time flare, or that it is caused by upscattered reverse shock electrons.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): radiation mechanisms: non-thermal - gamma-rays: bursts - X-rays: individual: GRB080307

Simbad objects: 25

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