Two or more gravitational lenses perfectly aligned with Earth?

In summary, the concept of two or more gravitational lenses perfectly aligned with Earth explores the phenomenon where multiple massive objects, like galaxies or galaxy clusters, bend light from distant sources due to their gravitational fields. This alignment can create multiple images, distorted shapes, or even a ring-like appearance of the background object. The study of such configurations enhances our understanding of dark matter and the universe's structure, while also providing potential for discovering new celestial bodies and phenomena.
  • #1
zuz
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TL;DR Summary
2 or more gravitational lenses
Has anyone ever discovered 2 or more gravitational lenses perfectly aligned with earth? So one lens magnifies the galaxies behind it and another lens between the first and earth magnifies it even more? Would you even be able to tell if they were?
 
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zuz said:
TL;DR Summary: 2 or more gravitational lenses

Has anyone ever discovered 2 or more gravitational lenses perfectly aligned with earth? So one lens magnifies the galaxies behind it and another lens between the first and earth magnifies it even more? Would you even be able to tell if they were?
Take a look at the theory paper Viktor T. Toth, Non-coplanar gravitational lenses and the “communication bridge”, which states in §6:
"...in particular, a two-lens system (the so called gravitational lens “bridge”) delivers no advantages, no additional signal amplification over the amplification offered by a single lens near the source."
 
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  • #3
renormalize said:
Take a look at the theory paper Viktor T. Toth, Non-coplanar gravitational lenses and the “communication bridge”, which states in §6:
"...in particular, a two-lens system (the so called gravitational lens “bridge”) delivers no advantages, no additional signal amplification over the amplification offered by a single lens near the source."
Thank you.
 
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