Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Rubens E. G. Machado"'
Publikováno v:
Galaxies, Vol 12, Iss 3, p 27 (2024)
Barred galaxies constitute about two-thirds of observed disc galaxies. Bars affect not only the mass distribution of gas and stars but also that of the dark matter. An elongation of the inner dark matter halo is known as the halo bar. We aim to chara
Externí odkaz:
https://doaj.org/article/3f6760b0e7a64a058d8ef8be8a3f06d7
Publikováno v:
Universe, Vol 10, Iss 5, p 223 (2024)
Barred galaxies often develop a box/peanut pseudobulge, but they can also host a nearly spherical classical bulge, which is known to gain rotation due to the bar. We aim to explore how the presence of gas impacts the rotation of classical bulges. We
Externí odkaz:
https://doaj.org/article/690d787fc7ee4866870981f5db30c9d8
Autor:
Rubens E. G. Machado, Ricardo C. Volert, Richards P. Albuquerque, Rogério Monteiro-Oliveira, Gastão B. Lima Neto
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 160 (2024)
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 modeled by dedicated simulations. Recent radio o
Externí odkaz:
https://doaj.org/article/02602749b7c940409f7d62068b629d74
Autor:
R. Monteiro-Oliveira, Eduardo Serra Cypriano, Tatiana F. Laganá, G. B. Lima Neto, L. Doubrawa, Rubens E. G. Machado
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 495:2022-2034
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 main structures: the southern cluster that exhibits a spiral-like morphol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4546dfc33f58a585d9db868112078494
https://doi.org/10.1093/mnras/staa1051
https://doi.org/10.1093/mnras/staa1051
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 487:3922-3934
We present a detailed analysis of two merging clusters, from XMM-\textit{Newton} X-ray archival data: PLCKESZ G036.7+14.9 ($z=0.15$; hereafter G036) and PLCK G292.5+22.0 ($z=0.30$; hereafter G292). We notice that the intracluster medium is heated as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0a312cf0fc3b6d581524e210cb1a9ff
https://doi.org/10.1093/mnras/stz1575
https://doi.org/10.1093/mnras/stz1575
Autor:
Micheli Moura, Rubens E. G. Machado
Collisions between galaxy clusters are a frequent scenario in the hierarchical model of structures. Dissociative collisions provide an extreme environment of interaction between clusters of galaxies, where the properties of dark matter (DM) in relati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2fbaca2cbd26830a6e99f8af16e6c80
Autor:
Benedetta Vulcani, Daniela Bettoni, R. Monteiro-Oliveira, Rubens E. G. Machado, Marco Gullieuszik, Jacopo Fritz, Alessia Moretti, Gastão B Lima-Neto, Kshitija Kelkar, Bianca M. Poggianti, K. S. Dwarakanath
We present a detailed analysis of star formation properties of galaxies in a nearby ($z\sim0.046$) young ($\sim$0.6 Gyr) post-merger cluster system A3376, with a moderate shock front ( $v_{s}\sim$1630 km/s) observed as symmetric radio relics. Exploit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5163078e6cdb70e6b01adc39fcd58746
http://arxiv.org/abs/2002.08610
http://arxiv.org/abs/2002.08610
Autor:
R. Monteiro-Oliveira, L. Doubrawa, Rubens E. G. Machado, Eduardo Serra Cypriano, G. B. Lima Neto, M. Castejon
The galaxy cluster Abell 1644 ($\bar{z}=0.047$) is known for its remarkable spiral-like X-ray emission. It was previously identified as a bimodal system, comprising the subclusters, A1644S and A1644N, each one centered on a giant elliptical galaxy. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a963b7ef9265920acc8e7088f472fbda
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 intracluster gas from the DM. Abell 2034 presents clear dissociative features obs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad197e40639e183d2c07a218fe80d642
Autor:
Andres Meza, Manuela Zoccali, Dante Minniti, Rubens E. G. Machado, Patricia B. Tissera, Daniela Carollo, Timothy C. Beers
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 473:1656-1666
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 central regions are dominated by stars older than 10 Gyr, mostly formed i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8f6ece78c7af3b1ffb4e82d1e869d40
https://doi.org/10.1093/mnras/stx2431
https://doi.org/10.1093/mnras/stx2431