58 citations · 205 across the 5 of their papers we have counts for
5 papers
Discrete Self-Similarity in Type-II Strong Explosions
Yonatan Oren, Re'em Sari
We present new solutions to the strong explosion problem in a non-power law density profile. The unperturbed self-similar solutions discovered by Waxman & Shvarts describe strong N…
On Choptuik's scaling in higher dimensions
Evgeny Sorkin, Yonatan Oren
We extend Choptuik's scaling phenomenon found in general relativistic critical gravitational collapse of a massless scalar field to higher dimensions. We find that in the range 4 <…
The apparent size of GRB afterglows as a test of the Fireball model
Yonatan Oren, Ehud Nakar, Tsvi Piran
Taylor et al. (2004) reported recently on the first direct measurement of the apparent size of a GRB afterglow. Here we confront these observations with the predictions of the fire…
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…
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…