46 citations · 391 across the 26 of their papers we have counts for
26 papers
Simulations of collision and sloshing in the galaxy group NGC 5098/5096
Richards P. Albuquerque, Gastão B. Lima Neto, Rubens E. G. Machado +2
The study of galaxy groups is essential to understanding the evolutionary history of large-scale structures in the Universe. These dense environments have a significant impact on g…
Structure and kinematics of the interacting group NGC 5098/5096
G. B. Lima Neto, H. V. Capelato, F. Durret +1
Most galaxies in the Universe are found in groups, which have various morphologies and dynamical states. Studying how groups evolve is an important step for our understanding in bo…
Orbital motion of NGC 6166 (3C 338) and its impact on the jet morphology at kiloparsec scales
A. S. R. Antas, A. Caproni, R. E. G. Machado +2
In the central region of the galaxy cluster Abell 2199 (A2199) resides the cD galaxy NGC 6166, which spatially coincides with the 3C 338 radio source. Lobes, jets, and a more detac…
Simulating the arrival of the southern substructure in the galaxy cluster Abell 1758
Rubens E. G. Machado, Ricardo C. Volert, Richards P. Albuquerque +2
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 ha…
Unraveling the collision scenario of the dissociative galaxy cluster Abell 56 through hydrodynamic simulations
Richards P. Albuquerque, Rubens E. G. Machado, Rogério Monteiro-Oliveira
In galaxy cluster collisions, the gas can be separated from dark matter halos. Abell~56 displays signatures of a dissociative bullet-like merger with a possible high inclination an…
Simulations of the merging galaxy cluster Abell 2034: what determines the level of separation between gas and dark matter
Micheli T. Moura, Rubens E. G. Machado, Rogério Monteiro-Oliveira
Cluster mergers are an important laboratory for studying the behaviour of dark matter (DM) and intracluster gas. There are dissociative collisions that can separate the intracluste…
The dynamical state of Abell 2399: a bullet-like cluster
Ana C. C. Lourenço, P. A. A. Lopes, T. F. Laganá +8
While there are many ways to identify substructures in galaxy clusters using different wavelengths, each technique has its own caveat. In this paper, we conduct a detailed substruc…
NGC 4104: a shell galaxy in a forming fossil group
G. B. Lima Neto, F. Durret, T. F. Laganá +4
Groups are the most common association of galaxies in the Universe, found in different configuration states such as loose, compact and fossil groups. We have studied the galaxy gro…
Simulations of gas sloshing induced by a newly discovered gas poor substructure in galaxy cluster Abell 1644
L. Doubrawa, R. E. G. Machado, T. F. Laganá +3
Collision events lead to peculiar morphologies in the intracluster gas of galaxies clusters. That seems to be the case of Abell 1644, a nearby galaxy cluster, composed of three mai…
Revising the merger scenario of the galaxy cluster Abell 1644: a new gas poor structure discovered by weak gravitational lensing
R. Monteiro-Oliveira, L. Doubrawa, R. E. G. Machado +3
The galaxy cluster Abell 1644 () is known for its remarkable spiral-like X-ray emission. It was previously identified as a bimodal system, comprising the subclusters…
Passive spirals and shock influenced star formation in the merging cluster A3376
Kshitija Kelkar, K. S. Dwarakanath, Bianca M. Poggianti +8
We present a detailed analysis of star formation properties of galaxies in a nearby () young (0.6 Gyr) post-merger cluster system A3376, with a moderate shock fro…
Two merging galaxy clusters with very hot shock fronts observed shortly before pericentric passage
T. F. Laganá, G. S. Souza, R. E. G. Machado +2
We present a detailed analysis of two merging clusters, from XMM-\textit{Newton} X-ray archival data: PLCKESZ G036.7+14.9 (; hereafter G036) and PLCK G292.5+22.0 (;…
Galaxy cluster mergers as triggers for the formation of jellyfish galaxies: case study of the A901/2 system
Rafael Ruggiero, Rubens E. G. Machado, Fernanda V. Roman-Oliveira +4
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. W…
Properties of the circumgalactic medium in simulations compared to observations
Rubens E. G. Machado, Patricia B. Tissera, Gastão B. Lima Neto +1
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 th…
The central spheroids of Milky Way mass-sized galaxies
Patricia B. Tissera, Rubens E. G. Machado, Daniela Carollo +4
We study the properties of the central spheroids located within 10 kpc of the centre of mass of Milky Way mass-sized galaxies simulated in a cosmological context. The simulated cen…
Mild evolution of the stellar metallicity gradients of disc galaxies
Patricia B. Tissera, Rubens E. G. Machado, José M. Vilchez +3
The metallicity gradients of the stellar populations in disc galaxies and their evolution store relevant information on the disc formation history and on those processes which coul…
Weak lensing and spectroscopic analysis of the nearby dissociative merging galaxy cluster Abell 3376
Rogério Monteiro-Oliveira, Gastão B. Lima Neto, Eduardo S. Cypriano +5
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 sys…
The merger history of the complex cluster Abell 1758: a combined weak lensing and spectroscopic view
Rogério Monteiro-Oliveira, Eduardo S. Cypriano, Rubens E. G. Machado +4
We present a weak-lensing and dynamical study of the complex cluster Abell 1758 (A1758, z = 0.278) supported by hydrodynamical simulations. This cluster is composed of two main str…
The stellar metallicity gradients in galaxy discs in a cosmological scenario
Patricia B. Tissera, Rubens E. G. Machado, Patricia Sánchez-Blázquez +4
The stellar metallicity gradients of disc galaxies provide information on the disc assembly, star formation processes and chemical evolution. They also might store information on d…
Simulating the shocks in the dissociative galaxy cluster Abell 1758N
Rubens E. G. Machado, Rogério Monteiro-Oliveira, Gastão B. Lima Neto +1
Major mergers between massive clusters have a profound effect in the intracluster gas, which may be used as a probe of the dynamics of structure formation at the high end of the ma…
Simulations of gas sloshing in galaxy cluster Abell 2052
Rubens E. G. Machado, Gastão B. Lima Neto
The intracluster plasma of Abell 2052 exhibits in X-rays a spiral structure extending more than 250 kpc, which is comprised of cool gas. This feature is understood to be the result…
Structure in galaxy clusters
Gastao B. Lima Neto, Tatiana F. Lagana, Felipe Andrade-Santos +1
We will discuss here how structures observed in clusters of galaxies can provide us insight on the formation and evolution of these objects. We will focus primarily on X-ray observ…
Chaos and dynamical trends in barred galaxies: bridging the gap between N-body simulations and time-dependent analytical models
T. Manos, Rubens E. G. Machado
Self-consistent N-body simulations are efficient tools to study galactic dynamics. However, using them to study individual trajectories (or ensembles) in detail can be challenging.…
Simulations of the merging galaxy cluster Abell 3376
Rubens E. G. Machado, Gastão B. Lima Neto
Observed galaxy clusters often exhibit X-ray morphologies suggestive of recent interaction with an infalling subcluster. Abell 3376 is a nearby (z=0.046) massive galaxy cluster who…