From the 1 of 4 linked papers with an AI index.
4 papers
Can third- and fourth-order multipoles plus radial variation of iso-density ellipses explain the observed flux ratios in B1422231? YES, and a lesson learned from a TNG100 lensing galaxy sample
Ruizhe Feng, Dandan Xu, Dominique Sluse +3
The paper investigates whether higher-order multipole distortions and radial variations of iso‑density ellipses, derived from TNG100 simulated galaxies, can resolve the observed im…
The Impact of Orbital Anisotropy Assumptions in Lensing-Dynamics Modeling
Yan Liang, Dandan Xu, Anowar J. Shajib +2
We investigate potential systematic biases introduced by assumptions regarding stellar orbital anisotropy in joint lensing-dynamics modeling. Our study employs the massive early-ty…
Biases in galaxy spectral analysis from strong lensing differential magnification effect and correction methods
Wenshuo Xu, Dandan Xu, Xinzhong Er +1
Strong gravitational lensing has significantly advanced the study of high-redshift galaxies, but the differential magnification effect inevitably introduces biases in the spectral…
Modeling biases from constant stellar mass-to-light ratio assumption in galaxy dynamics and strong lensing
Yan Liang, Dandan Xu, Dominique Sluse +2
A constant stellar mass-to-light ratio has been widely-used in studies of galaxy dynamics and strong lensing, which aim at disentangling the mass distributions of dark…