882 citations · 3.8k across the 27 of their papers we have counts for
26 papers
On Physical Scales of Dark Matter Halos
Marcel Zemp
It is common practice to describe formal size and mass scales of dark matter halos as spherical overdensities with respect to an evolving density threshold. Here, we critically inv…
Structure Finding in Cosmological Simulations: The State of Affairs
Alexander Knebe, Frazer R. Pearce, Hanni Lux +32
The ever increasing size and complexity of data coming from simulations of cosmic structure formation demands equally sophisticated tools for their analysis. During the past decade…
Revisiting The First Galaxies: The epoch of Population III stars
Alexander L. Muratov, Oleg Y. Gnedin, Nickolay Y. Gnedin +1
We investigate the transition from primordial Population III (Pop III) star formation to normal Pop II star formation in the first galaxies using new cosmological hydrodynamic simu…
Revisiting The First Galaxies: The effects of Population III stars on their host galaxies
Alexander L. Muratov, Oleg Y. Gnedin, Nickolay Y. Gnedin +1
We revisit the formation and evolution of the first galaxies using new hydrodynamic cosmological simulations with the ART code. Our simulations feature a recently developed model f…
The impact of baryon physics on the structure of high-redshift galaxies
Marcel Zemp, Oleg Y. Gnedin, Nickolay Y. Gnedin +1
We study the detailed structure of galaxies at redshifts z > 2 using cosmological simulations with improved modeling of the interstellar medium and star formation. The simulations…
On determining the shape of matter distributions
Marcel Zemp, Oleg Y. Gnedin, Nickolay Y. Gnedin +1
A basic property of objects, like galaxies and halos that form in cosmological structure formation simulations, is their shape. Here, we critically investigate shape determination…