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astro-ph.CO2026
Hints of self-interacting dark matter from strong gravitational lensing
Daniel Gilman, Kalliopi Petraki, Thomas Pignard +3
An analysis of 29 quadruply imaged quasars hints at dark matter halo densities consistent with gravothermal core collapse, a key prediction of self-interacting dark matter. We inte…
astro-ph.CO2026
DDELenS: Tomographic Weak Lensing Simulations with Dynamical Dark Energy
Shu-Fan Chen, J. Colin Hill, Zoltán Haiman
We present a suite of 128 cosmological simulations in CDM cosmologies with massive neutrinos, designed to enable simulation-based inference of dynamical dark energy paramet…