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A solar gravitational lens will be humanity's most powerful telescope (2022)

(phys.org)
197 points amichail | 2 comments | 15 Oct 24 11:52 UTC | HN request time: 0s | source
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pfdietz ◴[17 Oct 24 01:37 UTC] No.41865627[source]▶
One could also lens neutrinos using the Sun's core. Because neutrinos are not absorbed by the Sun, there is a critical offset from the core where they are maximally focused. This would form a caustic, and would cause increased magnification of the neutrino signal at that focal distance.
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1. JoeAltmaier ◴[17 Oct 24 01:50 UTC] No.41865688[source]▶
What non-uniform field of neutrinos would one expect? I seem to recall that neutrinos come from every direction. Perhaps some stellar event like a nova? Otherwise the image would be the same everywhere, as the sun is relatively uniform.
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2. pfdietz ◴[17 Oct 24 05:46 UTC] No.41866760[source]▶
There should be many concentrated neutrino sources, for example active galactic nuclei.