SIMBAD references

2010ApJ...719L.172S - Astrophys. J., 719, L172-L176 (2010/August-3)

Underlying global features of the X-ray light curves of Swift gamma-ray bursts.

SHAO L., FAN Y.-Z. and WEI D.-M.

Abstract (from CDS):

With its rapid response, Swift has revealed plenty of unexpected properties of gamma-ray bursts (GRBs). With an abundance of observations, our current understanding is only limited by the complexity of early X-ray light curves. In this work, based on the public Swift data of 150 well-monitored GRBs with measured redshifts, we find some interesting global features in the rest-frame X-ray light curves. The distinct spectral behaviors between the prompt emission and the afterglow emission imply dissimilar radiation scenarios. Interestingly, an unforeseen plateau is exhibited in the prompt X-ray light curves despite the presence of complex spikes, which might indicate the presence of a steady central engine. In particular, the seemingly continuous evolution with a single power law from the prompt to the afterglow of most GRBs might place strong constraints on the theoretical models.

Abstract Copyright:

Journal keyword(s): gamma-ray burst: general - radiation mechanisms: non-thermal

Simbad objects: 150

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