4 papers · 1 filter
Substructure-enhanced Collisional Relaxation in Stellar Systems
Jian-Yu Gu, Xiao-Bo Dong, Run-Yu Meng
Two-body collisional relaxation in stellar systems is conventionally estimated using the classical Chandrasekhar theory, in which a subject star is assumed to be embedded in a homo…
GroArnold: A Framework for Constructing Action-based Models for Triaxial Galaxies and Dark Matter Halos
Jian-Yu Gu, Xiao-Bo Dong, Shi-Yan Zhong +1
Action-based distribution functions provide a powerful description of stellar systems. Consequently, the construction of physically accurate and dynamically stable…
Wave Cold Dark Matter Can Reproduce the Radial Acceleration Relation in X-ray Elliptical Galaxies
Runyu Meng, Xiaobo Dong
Wave cold dark matter (wave CDM) is a well-motivated variant within the collisionless CDM paradigm, in which the de~Broglie wavelengths of ultralight bosons become relevant on gala…
WaveDM.jl: An Adaptable Simulation Framework for Dynamics of Baryonic and Wave Dark Matter on Galaxy Scales
Runyu Meng, Xiaobo Dong
We present WaveDMjl, an open-source Julia package for high-performance simulations of wave dark matter dynamics on galaxy scales, with a design philosophy centered on extensibil…