Search Results - "Ribeiro, A L B"

The merger history of the complex cluster Abell 1758: a combined weak lensing and spectroscopic view by Monteiro-Oliveira, R., Cypriano, E. S., Machado, R. E. G., Lima Neto, G. B., Ribeiro, A. L. B., Sodré, L., Dupke, R.

“…Abstract We present a weak-lensing and dynamical study of the complex cluster Abell 1758 (A1758, $\bar{z} = 0.278$ ) supported by hydrodynamical simulations…”
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Optical substructure and BCG offsets of Sunyaev–Zel’dovich and X-ray-selected galaxy clusters by Lopes, Paulo A A, Trevisan, M, Laganá, T F, Durret, F, Ribeiro, A L B, Rembold, S B

“…ABSTRACT We used optical imaging and spectroscopic data to derive substructure estimates for local Universe ($z$ < 0.11) galaxy clusters from two different…”
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Boosting the evolutionary picture of Cl 0024+17 and MS 0451−03: a case study at intermediate-redshift by Costa, A P, Ribeiro, A L B, de Carvalho, R R, Benavides, J A

“…ABSTRACT In this work we improve the dynamic-evolutionary framework of two massive clusters at intermediate redshifts: Cl 0024+17 at $z \sim 0.4$ and MS…”
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Unveiling the internal structure of the Hercules supercluster by Monteiro-Oliveira, R, Morell, D F, Sampaio, V M, Ribeiro, A L B, de Carvalho, R R

“…ABSTRACT We have investigated the structure of the Hercules supercluster (SCL160) based on data originally extracted from the Sloan Digital Sky Survey…”
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Investigating the projected phase space of Gaussian and non-Gaussian clusters by Sampaio, V M, de Carvalho, R R, Ferreras, I, Laganá, T F, Ribeiro, A L B, Rembold, S B

“…ABSTRACT By way of the projected phase space (PPS), we investigate the relation between galaxy properties and cluster environment in a subsample of groups from…”
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The Kormendy relation of cluster galaxies in PPS regions by Ribeiro, A L B, Lopes, P A A, Morell, D F, Dantas, C C, Fonseca, M H S, Amarante, B G, Morais-Neto, F R

“…ABSTRACT We study a sample of 936 early-type galaxies located in 48 low-z regular galaxy clusters with M200 ≥ 1014 M⊙ at z < 0.1. We examine variations in the…”
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The shape of velocity dispersion profiles and the dynamical state of galaxy clusters by Costa, A P, Ribeiro, A L B, de Carvalho, R R

“…Motivated by the existence of the relationship between the dynamical state of clusters and the shape of the velocity dispersion profiles (VDPs), we study the…”
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Late growth of early-type galaxies in low-z massive clusters by Ribeiro, A L B, Nascimento, R S, Morell, D F, Lopes, P A A, Dantas, C C, Fonseca, M H S

“…ABSTRACT We study a sample of 936 early-type galaxies (ETGs) located in 48 low-z regular galaxy clusters with M200 ≥ 1014 M⊙ at z < 0.1. We examine variations…”
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Probing Saraswati’s heart: evaluating the dynamical state of the massive galaxy cluster A2631 through a comprehensive weak-lensing and dynamical analysis by Monteiro-Oliveira, R, Soja, A C, Ribeiro, A L B, Bagchi, J, Sankhyayan, S, Candido, T O, Flores, R R

“…ABSTRACT In this work, we investigate the dynamical state of the galaxy cluster Abell 2631, a massive structure located at the core of the Saraswati…”
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Segregation effects in DEEP2 galaxy groups by Nascimento, R S, Ribeiro, A L B, Lopes, P A A

“…We investigate segregation phenomena in galaxy groups in the range of 0.2 < z < 1. We study a sample of groups selected from the 4th Data Release of the DEEP2…”
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The influence of the dynamic state of galaxy clusters on segregation phenomena and velocity dispersion profiles by Nascimento, R S, Lopes, P A A, Ribeiro, A L B, Costa, A P, Morell, D F

“…In this work we investigate the influence of the dynamic state of galaxy clusters on segregation effects and velocity dispersion profiles (VDPs) for a sample…”
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Classification and evolution of galaxies according to the dynamical state of host clusters and galaxy luminosities by Morell, D F, Ribeiro, A L B, de Carvalho, R R, Rembold, S B, Lopes, P A A, Costa, A P

“…ABSTRACT We analyse the dependence of galaxy evolution on cluster dynamical state and galaxy luminosity for a sample of 146 galaxy clusters from the Yang SDSS…”
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The mass density profile and star formation history of Gaussian and non-Gaussian clusters by de Carvalho, R R, Costa, A P, Moura, T C, Ribeiro, A L B

“…This paper is the third of a series in which we investigate the discrimination between Gaussian (G) and Non-Gaussian (NG) clusters, based on the velocity…”
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New insights on the dissociative merging galaxy cluster Abell 2034 by Monteiro-Oliveira, R, Cypriano, E S, Vitorelli, A Z, Ribeiro, A L B, Sodré, L, Dupke, R, Mendes de Oliveira, C

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The NGC 454 system: anatomy of a mixed ongoing merger by Plana, H., Rampazzo, R., Mazzei, P., Marino, A., Amram, Ph, Ribeiro, A. L. B.

“…Abstract This paper focuses on NGC 454, a nearby interacting pair of galaxies (AM 0112-554, RR23), composed of an early-type (NGC 454 E) and a star-forming…”
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SPIDER - IX. Classifying galaxy groups according to their velocity distribution by Ribeiro, A. L. B., de Carvalho, R. R., Trevisan, M., Capelato, H. V., La Barbera, F., Lopes, P. A. A., Schilling, A. C.

“…We introduce a new method to study the velocity distribution of galaxy systems, the Hellinger Distance (HD), designed for detecting departures from a Gaussian…”
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NoSOCS in SDSS – VI. The environmental dependence of AGN in clusters and  field in the local Universe by Lopes, P. A. A., Ribeiro, A. L. B., Rembold, S. B.

“…Abstract We investigated the variation in the fraction of optical active galactic nuclei (AGNs) hosts with stellar mass, as well as their local and global…”
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Dark energy and flatness from observational H(z)+WMAP constraint by Ribeiro, A. L. B., Schilling, A. C.

“…We analyse the dark energy problem using observational H(z) data plus the curvature constraint given by WMAP. After a non-parametric statistical study covering…”
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Dynamical analysis of the cluster pair: A3407 + A3408 by Nascimento, R. S., Ribeiro, A. L. B., Trevisan, M., Carrasco, E. R., Plana, H., Dupke, R.

“…We carried out a dynamical study of the galaxy cluster pair A3407 and A3408 based on a spectroscopic survey obtained with the 4 metre Blanco telescope at the…”
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NoSOCS in SDSS – V. Red disc and blue bulge galaxies across different environments by Lopes, P. A. A., Rembold, S. B., Ribeiro, A. L. B., Nascimento, R. S., Vajgel, B.

“…We investigated the typical environment and physical properties of ‘red discs’ and ‘blue bulges’, comparing those to the ‘normal’ objects in the blue cloud and…”
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