Statistics of Extreme Gravitational Lensing Events. I.The Zero Shear Case

Details Statistics of Extreme Gravitational Lensing Events. I.The Zero Shear Case Statistics of Extreme Gravitational Lensing Events. I.The Zero Shear Case

1995-09-07

arxiv.org/abs/astro-ph/9509042v2

Astrophys.J. 464 (1996) 114-124

Astronomy and Astrophysics

Astrophysics

revised and final published version including a new section on the destruction of dust grains in globular clusters as an examp

Scientific paper

10.1086/177303

For a given source and lens pair, there is a thin on-axis tube-like volume behind the lens in which the radiation flux from the source is greatly increased due to gravitational lensing. Any objects (such as dust grains) which pass through such a thin tube will experience strong bursts of radiation, i.e., Extreme Gravitational Lensing Events (EGLE). We study the physics and statistics of EGLE for the case in which finite source size is more important than shear. One of the several possible significant astrophysical effects is investigated with an illustrative calculation.

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