506 citations · 1.2k across the 5 of their papers we have counts for
10 papers · 1 filter
Multimass spherical structure models for N-body simulations
Marcel Zemp, Ben Moore, Joachim Stadel +2
We present a simple and efficient method to set up spherical structure models for N-body simulations with a multimass technique. This technique reduces by a substantial factor the…
Precision photometric redshift calibration for galaxy-galaxy weak lensing
R. Mandelbaum, U. Seljak, C. M. Hirata +26
Accurate photometric redshifts are among the key requirements for precision weak lensing measurements. Both the large size of the Sloan Digital Sky Survey (SDSS) and the existence…
Properties of Dark Matter Haloes in Clusters, Filaments, Sheets and Voids
Oliver Hahn, Cristiano Porciani, C. Marcella Carollo +1
Using a series of high-resolution N-body simulations of the concordance cosmology we investigate how the formation histories, shapes and angular momenta of dark-matter haloes depen…
An optimum time-stepping scheme for N-body simulations
Marcel Zemp, Joachim Stadel, Ben Moore +1
We present a new time-stepping criterion for N-body simulations that is based on the true dynamical time of a particle. This allows us to follow the orbits of particles correctly i…
Near-Infrared Spectroscopy of 0.4<z<1.0 CFRS Galaxies: Oxygen Abundances, SFRs and Dust
C. Maier, S. J. Lilly, M. Carollo +2
Using new J-band VLT-ISAAC and Keck-NIRSPEC spectroscopy, we have measured Halpha and [NII] line fluxes for 0.47<z<0.92 CFRS galaxies which have [OII], Hbeta and [OIII]a line fluxe…
Cusps in CDM halos
Juerg Diemand, Marcel Zemp, Ben Moore +2
We resolve the inner region of a massive cluster forming in a cosmological LCDM simulation with a mass resolution of 2*10^6 Msun and before z=4.4 even 3*10^5 Msun. This is a billio…