Astrophysical Effects of Extreme Gravitational Lensing Events

Details Astrophysical Effects of Extreme Gravitational Lensing Events Astrophysical Effects of Extreme Gravitational Lensing Events

1997-01-30

arxiv.org/abs/astro-ph/9701230v2

Astronomy and Astrophysics

Astrophysics

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Scientific paper

Every astrophysical object (dark or not) is a gravitational lens, as well as a receiver/observer of the light from sources lensed by other objects in its neighborhood. For a given pair of source and lens, there is a thin on-axis tubelike volume behind the lens in which the radiation flux from the source is greatly increased due to gravitational lensing. Any objects which pass through such a thin tube or beam will experience strong bursts of radiation, i.e., Extreme Gravitational Lensing Events (EGLEs). We have studied the physics and statistics of EGLEs. EGLEs may have interesting astrophysical effects, such as the destruction of dust grains, ignition of masers, etc. Here we illustrate the possible astrophysical effects of EGLEs with one specific example, the destruction of dust grains in globular clusters.

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