190 citations · 431 across the 11 of their papers we have counts for
6 papers · 1 filter
The Local Hubble Flow: Is it a Manifestation of Dark Energy?
Yehuda Hoffman, Luis A. Martinez-Vaquero, Gustavo Yepes +1
To study the local Hubble flow, we have run constrained dark matter (DM) simulations of the Local Group (LG) in the concordance LCDM and OCDM cosmologies, with identical cosmologic…
Too small to form a galaxy: How the UV background determines the baryon fraction
Matthias Hoeft, Gustavo Yepes, Stefan Gottloeber
The cosmic ultraviolet background (UVB) heats the intergalactic medium (IGM), as a result the gas in dark matter halos below a certain mass is too hot to cool within a Hubble time.…
Spin alignment of dark matter haloes in the shells of the largest voids
A. J. Cuesta, J. E. Betancort-Rijo, S. Gottloeber +3
Using the high resolution cosmological N-body simulation MareNostrum Universe we study the orientation of shape and angular momentum of galaxy-size dark matter haloes around large…
The Future of the Local Large Scale Structure: the roles of Dark Matter and Dark Energy
Yehuda Hoffman, Ofer Lahav, Gustavo Yepes +1
We study the distinct effects of Dark Matter and Dark Energy on the future evolution of nearby large scale structures using constrained N-body simulations. We contrast a model of C…
Constrained simulations of the local universe: I. Mass and motion in the Local Volume
Luis A. Martinez-Vaquero, Gustavo Yepes, Yehuda Hoffman
It has been recently claimed that there is no correlation between the distribution of galaxies and their peculiar velocities within the Local Volume (LV), namely a sphere of R=7/h…
Shape, spin and baryon fraction of clusters in the MareNostrum Universe
Stefan Gottloeber, Gustavo Yepes
The MareNostrum Universe is one of the largest cosmological SPH simulation done so far. It consists of dark and gas particles in a box of 500 Mpc on a si…