Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Neto, Gastao B. Lima"'
Autor:
Machado, Rubens E. G., Volert, Ricardo C., Albuquerque, Richards P., Monteiro-Oliveira, Rogério, Neto, Gastão B. Lima
Abell 1758 (z~0.278) is a galaxy cluster composed of two structures: A1758N and A1758S, separated by ~2.2 Mpc. The northern cluster is itself a dissociative merging cluster that has already been modelled by dedicated simulations. Recent radio observa
Externí odkaz:
http://arxiv.org/abs/2405.20497
Publikováno v:
A&A 687, A131 (2024)
Nearby dwarf galaxies display a variety of effective radii (sizes) at a given stellar mass, suggesting different evolution scenarios according to their final "stellar" size. The TNG hydrodynamical simulations present a bimodality in the z = 0 size -
Externí odkaz:
http://arxiv.org/abs/2404.15482
Since the epoch of cosmic star formation peak at $z \sim 2$, most of it is obscured in high mass galaxies, while in low mass galaxies the radiation escapes unobstructed. During the reionization epoch, the presence of evolved, dust obscured galaxies a
Externí odkaz:
http://arxiv.org/abs/2008.12798
Autor:
Ruggiero, Rafael, Machado, Rubens E. G., Roman-Oliveira, Fernanda V., Chies-Santos, Ana L., Neto, Gastão B. Lima, Doubrawa, Lia, del Pino, Bruno Rodríguez
The A901/2 system is a rare case of galaxy cluster interaction, in which two galaxy clusters and two smaller groups are seen in route of collision with each other simultaneously. Within each of the four substructures, several galaxies with features i
Externí odkaz:
http://arxiv.org/abs/1812.05611
As the dark sector remains unknown in composition and interaction between dark energy and dark matter stand out as natural, observations of galaxy clusters out of equilibrium abound, opening a promising window on these questions. We continue here the
Externí odkaz:
http://arxiv.org/abs/1811.10712
The interaction of gas-rich galaxies with the intra-cluster medium (ICM) of galaxy clusters has a remarkable impact on their evolution, mainly due to the gas loss associated with this process. In this work, we use an idealised, high-resolution simula
Externí odkaz:
http://arxiv.org/abs/1807.09771
Publikováno v:
A&A 609, A66 (2018)
Galaxies are surrounded by extended gaseous halos which store significant fractions of chemical elements. These are syntethized by the stellar populations and later ejected into the circumgalactic medium (CGM) by different mechanism, of which superno
Externí odkaz:
http://arxiv.org/abs/1710.08726
Autor:
Ruggiero, Rafael, Neto, Gastão B. Lima
Galaxy clusters are known to induce gas loss in infalling galaxies due to the ram pressure exerted by the intracluster medium over their gas content. In this paper, we investigate this process through a set of simulations of Milky Way like galaxies f
Externí odkaz:
http://arxiv.org/abs/1703.08550
Weak lensing and spectroscopic analysis of the nearby dissociative merging galaxy cluster Abell 3376
Autor:
Monteiro-Oliveira, Rogério, Neto, Gastão B. Lima, Cypriano, Eduardo S., Machado, Rubens E. G., Capelato, Hugo V., Laganá, Tatiana F., Durret, Florence, Bagchi, Joydeep
The galaxy cluster Abell~3376 is a nearby (z=0.046) dissociative merging cluster surrounded by two prominent radio relics and showing an X-ray comet-like morphology. The merger system is comprised of the subclusters A3376W & A3376E. Based on new deep
Externí odkaz:
http://arxiv.org/abs/1612.07935
Autor:
Battistelli, Elia S., Burigana, Carlo, de Bernardis, Paolo, Kirillov, Alexander A., Neto, Gastao B. Lima, Masi, Silvia, Norgaard-Nielsen, Hans U., Ostermann, Peter, Roman, Matthieu, Rosati, Piero, Rossetti, Mariachiara
In recent years, significant progress has been made in building new galaxy clusters samples, at low and high redshifts, from wide-area surveys, particularly exploiting the Sunyaev--Zel'dovich (SZ) effect. A large effort is underway to identify and ch
Externí odkaz:
http://arxiv.org/abs/1609.01110