Zobrazeno 1 - 10
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pro vyhledávání: '"Paz, Dante A."'
The properties of galaxies in low-density regions of the universe suggest an interplay between galaxy formation and environment. However, the specific reason why this particular large-scale environment influences the evolution of galaxies remains unc
Externí odkaz:
http://arxiv.org/abs/2312.09297
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
Magnetic fields are one of most concealed components of the universe. They are observed as part of the intergalactic medium and on galaxy cluster scales, however their origin and evolution is unclear. In this work we use the IllustrisTNG simulation t
Externí odkaz:
http://arxiv.org/abs/2305.01765
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
Autor:
Paz, Dante J., Correa, Carlos M., Gualpa, Sebastián R., Ruiz, Andres N., Bederián, Carlos S., Graña, R. Dario, Padilla, Nelson D.
We present a new definition of cosmic void and a publicly available code with the algorithm that implements it. Underdense regions are defined as free-form objects, called popcorn voids, made from the union of spheres of maximum volume with a given j
Externí odkaz:
http://arxiv.org/abs/2212.06849
Autor:
Correa, Carlos M., Paz, Dante J.
Cosmic voids constitute promising cosmological laboratories. However, a full description of all the redshift-space effects that affect observational measurements is mandatory in order to obtain unbiased cosmological constraints. We make a description
Externí odkaz:
http://arxiv.org/abs/2205.13604
Cosmic voids provide a unique environment to study galaxy formation and evolution. In this paper, we analyse a set of hydrodynamic zoom-in simulations of voids, to analyse in detail their inner structures. These voids were identified in a cosmologica
Externí odkaz:
http://arxiv.org/abs/2109.13378
Autor:
Correa, Carlos M., Paz, Dante J., Padilla, Nelson D., Sánchez, Ariel G., Ruiz, Andrés N., Angulo, Raúl E.
This is the second part of a thorough investigation of the redshift-space effects that affect void properties and the impact they have on cosmological tests. Here, we focus on the void-galaxy cross-correlation function, specifically, on the projected
Externí odkaz:
http://arxiv.org/abs/2107.01314
The alignment between halo spins and the cosmic web is still poorly understood despite being a widely studied topic. Here, we study this alignment within the context of tidal torque theory (TTT) and deviations from it. To this end, we analyze the evo
Externí odkaz:
http://arxiv.org/abs/2012.01638
Autor:
Correa, Carlos M., Paz, Dante J., Sánchez, Ariel G., Ruiz, Andrés N., Padilla, Nelson D., Angulo, Raúl E.
Voids are promising cosmological probes. Nevertheless, every cosmological test based on voids must necessarily employ methods to identify them in redshift space. Therefore, redshift-space distortions (RSD) and the Alcock-Paczynski effect (AP) have an
Externí odkaz:
http://arxiv.org/abs/2007.12064