In this case, the quasar is being lensed by a closer unnamed galaxy ... of inexplicably dense galaxy at the heart of perfect ...

Astronomers have identified the closest ever Einstein ring, a rare phenomenon where light ... When Collett and his colleagues measured the mass of the lensed galaxy, they also found a slightly ...

Related: Researchers solve mystery of inexplicably dense galaxy at the heart of perfect 'Einstein ring ... quasar after all. The team also found that newly unveiled bright spots have been lensed ...

and in April 2024 a different team found compelling evidence for dark matter in an Einstein ring formed by a distant quasar. Scientists have known about the galaxy in which Euclid spotted the ...

Chinese astronomers have investigated quasar candidates from the DESI Legacy Surveys (DESI-LS) photometry catalog. As a result, they detected 19 strongly-lensed, dual and projected quasars.

The quasar’s light bent twice: first by a nearby galaxy cluster, then a second, more distant lens. This cosmic zig-zag produced six duplicates and a faint red Einstein ring, reshaping our ...