361 citations · 668 across the 10 of their papers we have counts for
12 papers
Not Hydro: Using Neural Networks to estimate galaxy properties on a Dark-Matter-Only simulation
Cristian Hernández Cuevas, Roberto E. González, Nelson D. Padilla
Using data from TNG300-2, we train a neural network (NN) to recreate the stellar mass () and star formation rate (SFR) of central galaxies in a dark-matter-only simulation. We…
Tracing the cosmic web
Noam I Libeskind, Rien van de Weygaert, Marius Cautun +27
The cosmic web is one of the most striking features of the distribution of galaxies and dark matter on the largest scales in the Universe. It is composed of dense regions packed fu…
The RESOLVE Survey Atomic Gas Census and Environmental Influences on Galaxy Gas Reservoirs
David V. Stark, Sheila J. Kannappan, Kathleen D. Eckert +17
We present the HI mass inventory for the RESOLVE survey, a volume-limited, multi-wavelength census of >1500 z=0 galaxies spanning diverse environments and complete in baryonic mass…
Relation between halo spin and cosmic web filaments at z=3
Roberto E. Gonzalez, Joaquin Prieto, Nelson Padilla +1
We investigate the spin evolution of dark matter haloes and their dependence on the number of connected filaments from the cosmic web at high redshift (spin-filament relation herea…
Subhalo accretion through filaments
Roberto E. Gonzalez, Nelson D. Padilla
We track subhalo orbits of galaxy and group sized halos in cosmological simulations. We identify filamentary structures around halos and we use these to define a sample of subhalos…
PARAVT: Parallel Voronoi Tessellation code
Roberto E. Gonzalez
We present a new open source code for massive parallel computation of Voronoi tessellations(VT hereafter) in large data sets. The code is focused for astrophysical purposes where V…
The place of the Local Group in the cosmic web
Jaime E. Forero-Romero, Roberto E. Gonzalez
We use the Bolshoi Simulation to find the most probable location of the Local Group (LG) in the cosmic web. Our LG simulacra are pairs of halos with isolation and kinematic propert…
On the mass of the Local Group
Roberto E. Gonzalez, Andrey V. Kravtsov, Nickolay Y. Gnedin
We use recent proper motion measurements of the tangential velocity of M31, along with its radial velocity and distance, to derive the likelihood of the sum of halo masses of the M…
Satellites in MW-like hosts: Environment dependence and close pairs
Roberto E. Gonzalez, Andrey V. Kravtsov, Nickolay Y. Gnedin
Previous studies showed that an estimate of the likelihood distribution of the Milky Way halo mass can be derived using the properties of the satellites similar to the Large and Sm…
Automated detection of filaments in the large scale structure of the universe
Roberto E. Gonzalez, Nelson E. Padilla
We present a new method to identify large scale filaments and apply it to a cosmological simulation. Using positions of haloes above a given mass as node tracers, we look for filam…
Local and global environmental effects on galaxies and active galactic nuclei
Nelson Padilla, Diego Garcia Lambas, Roberto Gonzalez
We study the properties of SDSS galaxies with and without AGN detection as a function of the local and global environment measured via the local density, the mass of the galaxy hos…
Galaxy star formation in different environments
R. E. Gonzalez, N. D. Padilla
We use a semi-analytic model of galaxy formation to study signatures of large-scale modulations in the star formation (SF) activity in galaxies. In order to do this we carefully de…