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astro-ph2003
Polarization and light curve variability: the "patchy shell" model
Ehud Nakar, Yonatan Oren
Recent advances in early detection and detailed monitoring of GRB afterglows have revealed variability in some afterglow light curves. One of the leading models for this behavior i…
gr-qc2003
On the Collapse of Charged Scalar Fields
Yonatan Oren, Tsvi Piran
We explore numerically the evolution of a collapsing spherical shell of charged, massless scalar field. We obtain an external \RN space-time, and an inner space-time that is bounde…