63 citations · 536 across the 33 of their papers we have counts for
13 papers · 1 filter
Flux-ratio anomalies in cusp quasars reveal dark matter beyond CDM
Siyuan Hou, Shucheng Xiang, Yue-Lin Sming Tsai +7
Strongly lensed quasars in cusp configurations provide a uniquely sensitive probe of small-scale dark matter structure. Using the largest microlensing-free flux ratios for 17 quadr…
Self-Interacting Dark Matter with Mass Segregation: A Unified Explanation of Dwarf Cores and Small-Scale Lenses
Daneng Yang, Yi-Zhong Fan, Siyuan Hou +1
In two-component self-interacting dark matter (SIDM) models with inter-species interactions, mass segregation arises naturally from collisional relaxation, enhancing central densit…
Diversifying halo structures in two-component self-interacting dark matter models via mass segregation
Daneng Yang, Yue-Lin Sming Tsai, Yi-Zhong Fan
Self-interacting dark matter (SIDM), through gravothermal evolution driven by elastic self-scatterings, offers a compelling explanation for the observed diversity of inner halo den…
SIDM Concerto: Compilation and Data Release of Self-interacting Dark Matter Zoom-in Simulations
Ethan O. Nadler, Demao Kong, Daneng Yang +1
We present SIDM Concerto: cosmological zoom-in simulations in cold dark matter (CDM) and self-interacting dark matter (SIDM) models based on the Symphony and Milky Way-est sui…
A Universal Analytic Model for Gravitational Lensing by Self-Interacting Dark Matter Halos
Siyuan Hou, Daneng Yang, Nan Li +1
We present a model for analytically calculating gravitational lensing by self-interacting dark matter (SIDM) halos. Leveraging the universal behavior of SIDM halos during gravother…
COZMIC. III. Cosmological Zoom-in Simulations of Self-interacting Dark Matter with Suppressed Initial Conditions
Ethan O. Nadler, Rui An, Daneng Yang +3
We present eight cosmological dark matter (DM)--only zoom-in simulations of a Milky Way--like system that include suppression of the linear matter power spectrum , and/or vel…
Testing the parametric model for self-interacting dark matter using matched halos in cosmological simulations
Daneng Yang, Ethan O. Nadler, Hai-Bo Yu
We systemically evaluate the performance of the self-interacting dark matter (SIDM) halo model proposed in arXiv:2305.16176 with matched halos from high-resolution cosmological CDM…
Exploring Self-Interacting Dark Matter Halos with Diverse Baryonic Distributions: A Parametric Approach
Daneng Yang
Galaxies residing in dark matter halos exert significant gravitational effects that alter halo structure and dynamics. The complexity of these interactions escalates with the diver…
SASHIMI-SIDM: Semi-analytical subhalo modelling for self-interacting dark matter at sub-galactic scales
Shin'ichiro Ando, Shunichi Horigome, Ethan O. Nadler +2
We combine the semi-analytical structure formation model, SASHIMI, which predicts subhalo populations in collisionless, cold dark matter (CDM), with a parametric model that maps CD…
The impact of baryonic potentials on the gravothermal evolution of self-interacting dark matter haloes
Yi-Ming Zhong, Daneng Yang, Hai-Bo Yu
The presence of a central baryonic potential can have a significant impact on the gravothermal evolution of self-interacting dark matter (SIDM) haloes. We extend a semi-analytical…
A Parametric Model for Self-Interacting Dark Matter Halos
Daneng Yang, Ethan O. Nadler, Hai-Bo Yu +1
We propose a parametric model for studying self-interacting dark matter (SIDM) halos. The model uses an analytical density profile, calibrated using a controlled N-body SIDM simula…
A graph model for the clustering of dark matter halos
Daneng Yang, Hai-Bo Yu
We use network theory to study topological features in the hierarchical clustering of dark matter halos. We use public halo catalogs from cosmological N-body simulations and constr…
Gravothermal evolution of dark matter halos with differential elastic scattering
Daneng Yang, Hai-Bo Yu
We study gravothermal evolution of dark matter halos in the presence of differential self-scattering that has strong velocity and angular dependencies. We design controlled N-body…