158 citations · 742 across the 14 of their papers we have counts for
14 papers
Dark Matter Halo Mergers I: Dependence on Environment & Redshift Evolution
J. A. Hester, A. Tasitsiomi
This paper presents a study of the specific merger rate as a function of group membership, local environment, and redshift in a very large, , cosmological N-body sim…
Modeling the galaxy/light-mass connection with cosmological simulations
Argyro Tasitsiomi
I review some results on the galaxy/light-mass connection obtained by dissipationless simulations in combination with a simple, non-parametric model to connect halo circular veloci…
On the transfer of resonant-line radiation in mesh simulations
Argyro Tasitsiomi
The last decade has seen applications of Adaptive Mesh Refinement (AMR) methods for a wide range of problems from space physics to cosmology. With the advent of these methods, in w…
Ly-alpha Radiative Transfer in Cosmological Simulations and Application to a z~8 Emitter
Argyro Tasitsiomi
We develop a Ly-alpha radiative transfer (RT) Monte Carlo code for cosmological simulations.High resolution,along with appropriately treated cooling can result in simulated environ…
Mass accretion histories & density profiles of LCDM clusters
Argyro Tasitsiomi
We analyze the mass accretion histories (MAHs) and density profiles of cluster-size halos in a flat LCDM cosmology.To fit the MAHs of all systems we need to generalize the MAH fit…
Cross-Correlation Lensing: Determining Galaxy and Cluster Mass Profiles from Statistical Weak Lensing Measurements
David E. Johnston, Erin S. Sheldon, Argyro Tasitsiomi +3
We present a new non-parametric method for determining mean 3D density and mass profiles from weak lensing measurements around stacked samples of galaxies or clusters, that is, fro…