63 citations · 536 across the 33 of their papers we have counts for
10 papers · 1 filter
Path Measures for Stochastic Galaxy Formation on Layered Halo Graphs
Daneng Yang
Galaxy formation, viewed as an inference problem from incomplete information, is inherently stochastic. Reducing the full simulation state to a coarse-grained set of variables inte…
Dark-Matter-Deficient Galaxies from Collisions: A New Probe of Bursty Feedback and Dark Matter Physics
Yi-Ying Wang, Daneng Yang, Keyu Lu +2
High-velocity collisions between gas-rich ultra-diffuse galaxies present a promising formation channel for dark-matter-deficient galaxies (DMDGs). Using hydrodynamical simulations,…
The GD-1 stellar stream perturber as a core-collapsed self-interacting dark matter halo
Xingyu Zhang, Hai-Bo Yu, Daneng Yang +1
The GD-1 stellar stream exhibits spur and gap structures that may result from a close encounter with a dense substructure. When interpreted as a dark matter subhalo, the perturber…
EDEN: Exploring Disks Embedded in N-body simulations of Milky-Way-mass halos from Symphony
Yunchong Wang, Philip Mansfield, Ethan O. Nadler +4
We investigate the impact of galactic disks on the tidal stripping of cold dark matter subhalos within Milky Way (MW)-mass halos () using…
CDM and SIDM Interpretations of the Strong Gravitational Lensing Object JWST-ER1
Demao Kong, Daneng Yang, Hai-Bo Yu
van Dokkum et al. (arXiv:2309.07969) reported the discovery of JWST-ER1, a strong lensing object at redshift , using data from the James Webb Space Telescope. The lens m…
Self-interacting dark matter interpretation of Crater II
Xingyu Zhang, Hai-Bo Yu, Daneng Yang +1
The satellite galaxy Crater II of the Milky Way is extremely cold and exceptionally diffuse. These unusual properties are challenging to understand in the standard model of cold da…
A Self-interacting Dark Matter Solution to the Extreme Diversity of Low-mass Halo Properties
Ethan O. Nadler, Daneng Yang, Hai-Bo Yu
The properties of low-mass dark matter (DM) halos appear to be remarkably diverse relative to cold, collisionless DM predictions, even in the presence of baryons. We show that self…
Strong Dark Matter Self-interactions Diversify Halo Populations within and surrounding the Milky Way
Daneng Yang, Ethan O. Nadler, Hai-Bo Yu
We perform a high-resolution cosmological zoom-in simulation of a Milky Way (MW)--like system, which includes a realistic Large Magellanic Cloud analog, using a large differential…
Self-Interacting Dark Matter and Small-Scale Gravitational Lenses in Galaxy Clusters
Daneng Yang, Hai-Bo Yu
Recently, Meneghetti et al. reported an excess of small-scale gravitational lenses in galaxy clusters. We study its implications for self-interacting dark matter (SIDM), compared w…
Self-Interacting Dark Matter and the Origin of Ultra-Diffuse Galaxies NGC1052-DF2 and -DF4
Daneng Yang, Hai-Bo Yu, Haipeng An
Observations of ultra-diffuse galaxies NGC 1052-DF2 and -DF4 show they may contain little dark matter, challenging our understanding of galaxy formation. Using controlled N-body si…