Zobrazeno 1 - 10
of 148
pro vyhledávání: '"Ruiz, Andrés N."'
Autor:
Palma, Daniela, Lacerna, Ivan, Artale, M. Celeste, Montero-Dorta, Antonio D., Ruiz, Andrés N., Cora, Sofía A., Rodriguez, Facundo, Pallero, Diego, O'Mill, Ana, Choque-Challapa, Nelvy
We investigate low-mass central galaxies with Mstar = $10^{9.5}-10^{10}$ Msun/h, located near massive groups and galaxy clusters using the TNG300 and MDPL2-SAG simulations. We set out to study their evolution, aiming to find hints about the large-sca
Externí odkaz:
http://arxiv.org/abs/2406.12977
We extend the evolution mapping approach, originally proposed by Sanchez (2022) to describe non-linear matter density fluctuations, to statistics of the cosmic velocity field. This framework classifies cosmological parameters into shape parameters, w
Externí odkaz:
http://arxiv.org/abs/2406.08539
Autor:
Perez, Noelia R., Pereyra, Luis A., Coldwell, Georgina, Rodriguez, Ignacio G. Alfaro Facundo, Ruiz, Andrés N.
We study the evolution of the Halo Occupation Distribution (HOD) and galaxy properties of nodes and filamentary structures obtained by DisPerSE from the Illustris TNG300-1 hydrodynamical simulation, in the redshift range $0 \leq z \leq 2$. We compute
Externí odkaz:
http://arxiv.org/abs/2405.01671
Autor:
Parente, Massimiliano, Ragone-Figueroa, Cinthia, López, Pablo, Martínez, Héctor J., Ruiz, Andrés N., Ceccarelli, Laura, Coenda, Valeria, Rodriguez, Facundo, Granato, Gian Luigi, Lapi, Andrea, van de Weygaert, Rien
The large-scale environment of the cosmic web is believed to impact galaxy evolution, but there is still no consensus regarding the mechanisms. We use a semi-analytic model (SAM) galaxy catalog to study the star formation and dust content of local ga
Externí odkaz:
http://arxiv.org/abs/2312.10146
We compare the reduced void probability function (VPF) inside and outside of cosmic voids in the TNG300-1 simulation, both in real and simulated redshift space. The VPF is a special case of the counts-in-cells approach for extracting information of h
Externí odkaz:
http://arxiv.org/abs/2311.12928
Autor:
Perez, Noelia R., Pereyra, Luis A., Coldwell, Georgina, Rodriguez, Facundo, Alfaro, Ignacio G., Ruiz, Andrés N.
The standard paradigm for the formation of the Universe suggests that large structures are formed from hierarchical clustering by the continuous accretion of less massive galaxy systems through filaments. In this context, filamentary structures play
Externí odkaz:
http://arxiv.org/abs/2310.19928
Autor:
Yaryura, C. Yamila, Abadi, Mario G., Gottlöber, Stefan, Libeskind, Noam I., Cora, Sofía A., Ruiz, Andrés N., Vega-Martínez, Cristian A., Yepes, Gustavo
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 galaxies, considering as dwarf galaxies those galaxies less massive t
Externí odkaz:
http://arxiv.org/abs/2307.14420
Autor:
Ruiz, Andrés N., Martínez, Héctor J., Coenda, Valeria, Muriel, Hernán, Cora, Sofía A., Rios, Martín de los, Vega-Martínez, Cristian A.
We study the population of backsplash galaxies at $z=0$ in the outskirts of massive, isolated clusters of galaxies taken from the MDPL2-SAG semi-analytic catalogue. We consider four types of backsplash galaxies according to whether they are forming s
Externí odkaz:
http://arxiv.org/abs/2307.13037
Autor:
Rodríguez-Medrano, Agustín M., Paz, Dante J., Stasyszyn, Federico A., Rodríguez, Facundo, Ruiz, Andrés N., Merchán, Manuel
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 galaxies with the environment. However, it is not clear the degree of
Externí odkaz:
http://arxiv.org/abs/2212.10594
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 diagram: cluster galaxies, backsplash galaxies, recent infallers, infalling
Externí odkaz:
http://arxiv.org/abs/2212.09780