4 papers
Dark Matter Halo Tumbling Induced by Torques from Massive Mergers
Neil Ash, Monica Valluri
Dark Matter halos exhibit slow tumbling known as `figure rotation'. Figure rotation occurs in roughly of isolated CDM halos and is relatively unaffected by baryonic feedb…
Disentangling Drivers of Disk Warps in Tilted and Tumbling TNG50 Halos
Saarthak Johri, Neil Ash, Monica Valluri
Dark matter (DM) halos in Cold DM cosmological simulations are triaxial. Most exhibit figure rotation. We study 40 isolated halos with stellar disks from the TNG50 simulation s…
Stellar bars form dark matter counterparts in TNG50
Neil Ash, Monica Valluri, Yingtian Chen +1
Dark matter (DM) bars that shadow stellar bars have been previously shown to form in idealized simulations of isolated disk galaxies. Here, we show that DM bars commonly occur in b…
Improved particle spray algorithm for modeling globular cluster streams
Yingtian Chen, Monica Valluri, Oleg Y. Gnedin +1
Stellar streams that emerge from globular clusters (GCs) are thin stellar structures spread along the orbits of progenitor clusters. Numerical modeling of these streams is essentia…