Local and large-scale effects on the astrophysics of void-galaxies

Autor: Agustín M Rodríguez-Medrano, Dante J Paz, Federico A Stasyszyn, Facundo Rodríguez, Andrés N Ruiz, Manuel Merchán

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: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed868079b7d34a242e4dff381337dc8b
http://arxiv.org/abs/2212.10594

Deviations from tidal torque theory

Autor: Marius Cautun, Rien van de Weygaert, Dante J. Paz, Manuel Merchán, Pablo H.H. Lopez

Publikováno v: Monthly Notices of the Royal Astronomical Society, 502, 5528-5545. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 502(4), 5528-5545

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: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d36307c1d4387aa209027425c4a0f6b5
https://hdl.handle.net/1887/3250927

Detection and analysis of cluster-cluster filaments

Autor: Luis Alberto Pereyra, Dante J. Paz, Manuel Merchán, Mario Agustín Sgró, Federico Stasyszyn

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

In this work, we identify and analyse the properties of cluster-cluster filaments within a cosmological simulation assuming that they are structures connecting maxima of the density field defined by dark matter halos with masses $M \, \ge 10^{14}\, h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0bb343e78e47e62212c77c43df57250

Deviations from tidal torque theory: environment dependences on halo angular momentum growth

Autor: Dante J. Paz, Manuel Merchán, Pablo H.H. Lopez

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

The tidal torque theory (TTT) relates the origin and evolution of angular momentum with the environment in which dark matter (DM) haloes form. The deviations introduced by late non-linearities are commonly thought as noise in the model. In this work,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6f9bbd02f18a4f95c26ceeb3d4e6424
http://arxiv.org/abs/1811.09487

Improving the precision matrix for precision cosmology

Autor: Dante J. Paz, Ariel G. Sánchez

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

The estimation of cosmological constraints from observations of the large scale structure of the Universe, such as the power spectrum or the correlation function, requires the knowledge of the inverse of the associated covariance matrix, namely the p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::decdfa72c89ea59da70cd81ee29aa4ba
https://doi.org/10.1093/mnras/stv2259