3 papers
astro-ph.CO2026
How to augment cosmic shear measurements with radio polarimetry of galaxies?
Liang Dai, Junwu Huang, Weichen Winston Yin +2
The integral polarization of spiral galaxies in the radio band has been proposed as a new tracer of the intrinsic galaxy shape that augments lensing shear measurements. We revisit…
astro-ph.GA2025
Polarization-shape alignment of IllustrisTNG star-forming galaxies
Rui Zhou, Liang Dai, Junwu Huang +2
In star-forming disk galaxies, the radio continuum emission (-GHz) powered by star formation has an integrated polarization direction imperfectly aligned with the apparent…
astro-ph.CO2025
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…