1.6k citations · 17.3k across the 245 of their papers we have counts for
11 papers · 2 filters
Dynamics of substructures in warm dark-matter cosmologies
Bastian Arnold, Alexander Knebe, Chris Power +1
We performed cosmological simulations based upon both a cold dark matter (CDM) and a warm dark matter (WDM) model. The focus of our investigations lies with selected spatial and ki…
Estimation of the Tilt of the Stellar Velocity Ellipsoid from RAVE and Implications for Mass Models
A. Siebert, O. Bienaymé, J. Binney +16
We present a measure of the inclination of the velocity ellipsoid at 1 kpc below the Galactic plane using a sample of red clump giants from the RAVE DR2 release. We find that the v…
Hydrodynamical Adaptive Mesh Refinement Simulations of Disk Galaxies
Brad K. Gibson, Stephanie Courty, Patricia Sanchez-Blazquez +4
To date, fully cosmological hydrodynamic disk simulations to redshift zero have only been undertaken with particle-based codes, such as GADGET, Gasoline, or GCD+. In light of the (…
The Evolution Of Carbon, Sulphur, and Titanium Isotopes from High-Redshift to the Local Universe
G. L. Hughes, B. K. Gibson, L. Carigi +3
Recent observations of carbon, sulphur, and titanium isotopes at redshifts z~1 and in the local stellar disc and halo have opened a new window into the study of isotopic abundance…
Diffuse interstellar bands in RAVE Survey spectra
U. Munari, L. Tomasella, M. Fiorucci +19
We have used spectra of hot stars from the RAVE Survey in order to investigate the visibility and properties of five diffuse interstellar bands previously reported in the literatur…
The Radial Velocity Experiment (RAVE): second data release
T. Zwitter, A. Siebert, U. Munari +51
We present the second data release of the Radial Velocity Experiment (RAVE), an ambitious spectroscopic survey to measure radial velocities (RVs) and stellar atmosphere parameters…
The radial alignment of dark matter subhalos: from simulations to observations
Alexander Knebe, Hideki Yahagi, Hiroyuki Kase +2
We explore the radial alignment of subhalos in 2-dimensional projections of cosmological simulations. While most other recent studies focussed on quantifying the signal utilizing t…
On the relation between radial alignment of dark matter subhalos and host mass in cosmological simulations
Alexander Knebe, Nadya Draganova, Chris Power +4
We explore the dependence of the radial alignment of subhalos on the mass of the host halo they orbit in. As the effect is seen on a broad range of scales including massive cluster…
The Dynamics of Subhalos in Warm Dark Matter Models
Alexander Knebe, Bastian Arnold, Chris Power +1
We present a comparison of the properties of substructure halos (subhalos) orbiting within host halos that form in Cold Dark Matter (CDM) and Warm Dark Matter (WDM) cosmologies. Ou…
Simulating the Mass-Metallicity Relation from z=1
Mustapha Mouchine, Brad K. Gibson, Agostino Renda +1
We use 112 N-body/hydrodynamical simulations in the standard Cold Dark Matter universe, to follow the formation of galaxy-sized halos and investigate the chemical enrichment of bot…
Galactic kinematics with RAVE data: I. The distribution of stars towards the Galactic poles
L. Veltz, O. Bienaymé, K. C. Freeman +16
We analyze the distribution of G and K type stars towards the Galactic poles using RAVE and ELODIE radial velocities, 2MASS photometric star counts, and UCAC2 proper motions. The c…