4 papers
Kinematic Mapping of Giant Arcs: A New Method to Locate Lensing Critical Curves
Ruwen Zhou, Liang Dai, Lingyuan Ji +4
The vicinity of lensing critical curves features highly magnified portions of lensed galaxies. Accurate knowledge of the location and shape of the critical curve will be useful for…
Time-frequency Imprints of Extreme Mass-Ratio Inspirals in Confusion Gravitational Wave Background
Lingyuan Ji, Liang Dai
Detecting individual extreme-mass-ratio inspirals (EMRIs) is a major science goal of future space-based gravitational wave observatories such as Laser Interferometer Space Antenna…
A New Probe of Cosmic Birefringence Using Galaxy Polarization and Shapes
Weichen Winston Yin, Liang Dai, Junwu Huang +2
We propose a novel statistical method to measure cosmic birefringence and demonstrate its power in probing parity violation due to axions. Exploiting an empirical correlation betwe…
Effects of Subhalos on Interpreting Highly Magnified Sources Near Lensing Caustics
Lingyuan Ji, Liang Dai
Large magnification factors near gravitational lensing caustics of galaxy cluster lenses allow the study of individual stars or compact stellar associations at cosmological distanc…