The Third Gravitational Lensing Accuracy Testing (Great3) Challenge Handbook

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Most large galaxies contain Super Massive Black Holes at their centers, drawing matter nearby to form swirling accretion disks emitting electromagnetic radiation. These are Active Galactic Nuclei. The brightest quasars are the most luminous Universe object ...

Weak-lensing studies via cosmic voids are a promising probe of modified gravity (MG). The excess surface mass density (ESD) is widely used as a lensing statistic in weak-lensing research. In this paper, we use the ray-tracing method to study the ESD around ...

A rare case of a quasar acting as a gravitational lens allows a precise determination of the mass of the quasar's host galaxy and offers a new path to studying the connections between supermassive black holes and their host galaxies. ...

The gravitationally lensed supernova Refsdal appeared in multiple images produced through gravitational lensing by a massive foreground galaxy cluster. After the supernova appeared in 2014, lens models of the galaxy cluster predicted that an additional ima ...

The Third Gravitational Lensing Accuracy Testing (Great3) Challenge Handbook

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Strong and micro lensing in distant quasars

Void Lensing in Cubic Galileon Gravity

Strong gravitational lensing by AGNs as a probe of the quasar-host relations in the distant Universe

Constraints on the Hubble constant from supernova Refsdal's reappearance