191 citations · 1.5k across the 42 of their papers we have counts for
16 papers · 1 filter
Environmental effects on associations of dwarf galaxies
C. Yamila Yaryura, Mario G. Abadi, Stefan Gottlöber +5
We study the properties of associations of dwarf galaxies and their dependence on the environment. Associations of dwarf galaxies are extended systems composed exclusively of dwarf…
Backsplash galaxies and their impact on galaxy evolution: a three-stage, four-type perspective
Andrés N. Ruiz, Héctor J. Martínez, Valeria Coenda +4
We study the population of backsplash galaxies at in the outskirts of massive, isolated clusters of galaxies taken from the MDPL2-SAG semi-analytic catalogue. We consider fou…
Hickson-like compact groups inhabiting different environments
A. Taverna, J. M. Salerno, I. V. Daza-Perilla +4
Although Compact Groups of galaxies (CGs) have been envisioned as isolated extremely dense structures in the Universe, it is accepted today that many of them could be not as isolat…
Reconstructing Orbits of Galaxies in Extreme Regions (ROGER) III: galaxy evolution patterns in projected phase space around massive X-ray clusters
Hector J. Martinez, Valeria Coenda, Hernan Muriel +2
We use the ROGER code by de los Rios et al. to classify galaxies around a sample of X-ray clusters into five classes according to their positions in the projected phase space diagr…
Local and large-scale effects on the astrophysics of void-galaxies
Agustín M. Rodríguez-Medrano, Dante J. Paz, Federico A. Stasyszyn +3
Galaxies in cosmic voids have been reported with properties related to a delayed evolution with respect to the Universe in general. These characteristics reflect the interaction of…
Reconstructing Orbits of Galaxies in Extreme Regions (ROGER) II: reliability of projected phase-space in our understanding of galaxy populations
Valeria Coenda, Martín de los Rios, Hernán Muriel +4
We connect galaxy properties with their orbital classification by analysing a sample of galaxies with stellar mass residing in and around mas…
On the environmental influence of groups and clusters of galaxies beyond the virial radius: Galactic conformity at few Mpc scales
Ivan Lacerna, Facundo Rodriguez, Antonio D. Montero-Dorta +6
The environment within dark matter haloes can quench the star formation of galaxies. However, environmental effects beyond the virial radius of haloes ( 1 Mpc) are less ev…
Overdensity of VVV galaxies behind the Galactic bulge
Daniela Galdeano, Luis Pereyra, Fernanda Duplancic +7
We studied a region of 1.636 square degrees corresponding to the VVV tile . Using SExtractor, we analysed photometric data generating a catalogue of extended sources in this…
ROGER: Reconstructing Orbits of Galaxies in Extreme Regions using machine learning techniques
Martín de los Rios, Héctor Julián Martínez, Valeria Coenda +4
We present the ROGER (Reconstructing Orbits of Galaxies in Extreme Regions) code, which uses three different machine learning techniques to classify galaxies in, and around, cluste…
Associations of dwarf galaxies in a CDM Universe
C. Y. Yaryura, M. G. Abadi, S. Gottlober +6
Associations of dwarf galaxies are loose systems composed exclusively of dwarf galaxies. These systems were identified in the Local Volume for the first time more than thirty years…
Semi-Analytic Galaxies - I. Synthesis of environmental and star-forming regulation mechanisms
Sofía A. Cora, Cristian A. Vega-Martínez, Tomás Hough +8
We present results from the semi-analytic model of galaxy formation SAG applied on the MultiDark simulation MDPL2. SAG features an updated supernova (SN) feedback scheme and a robu…
Cosmic CARNage I: on the calibration of galaxy formation models
Alexander Knebe, Frazer R. Pearce, Violeta Gonzalez-Perez +31
We present a comparison of nine galaxy formation models, eight semi-analytical and one halo occupation distribution model, run on the same underlying cold dark matter simulation (c…
MultiDark-Galaxies: data release and first results
Alexander Knebe, Doris Stoppacher, Francisco Prada +18
We present the public release of the MultiDark-Galaxies: three distinct galaxy catalogues derived from one of the Planck cosmology MultiDark simulations (i.e. MDPL2, with a volume…
Stellar Populations in a semi-analytic model I: bulges of Milky Way-like galaxies
I. D. Gargiulo, S. A. Cora, C. A. Vega-Martínez +5
We study the stellar populations of bulges of Milky Way-like (MW-like) galaxies with the aim of identifying the physical processes involved in the formation of the bulge of our Gal…
Properties of Submillimeter Galaxies in a Semi-analytic Model using the "Count Matching" Approach: Application to the ECDF-S
Alejandra M. Muñoz Arancibia, Felipe P. Navarrete, Nelson D. Padilla +4
We present a new technique for modeling submillimeter galaxies (SMGs): the "Count Matching" approach. Using lightcones drawn from a semi-analytic model of galaxy formation, we choo…
Stochastic angular momentum slews and flips and their effect on discs in galaxy formation models
Nelson Padilla, Salvador Salazar-Albornoz, Sergio Contreras +2
The angular momentum of galactic discs in semi-analytic models of galaxy formation is usually updated in time as material is accreted to the disc by adopting a constant dimensionle…