29 citations · 118 across the 11 of their papers we have counts for
11 papers
Gas Dynamics in the Central Molecular Zone and its connection with the Galactic Bar
Leonardo Chaves-Velasquez, Gilberto C. Gómez, Ángeles Pérez-Villegas
The innermost region of the Milky Way harbors the central molecular zone (CMZ). This region contains a large amount of molecular gas but a poor star formation rate considering the…
The JWST Galactic Center Survey -- A White Paper
Rainer Schoedel, Steve Longmore, Jonny Henshaw +111
The inner hundred parsecs of the Milky Way hosts the nearest supermassive black hole, largest reservoir of dense gas, greatest stellar density, hundreds of massive main and post ma…
Orbital Structure Evolution in Self-Consistent N-body Simulations
Diego Valencia-Enríquez, Ivânio Puerari, Leonardo Chaves-Velasquez
The bar structure in disk galaxies models is formed by different families of orbits; however, it is not clear how these families of orbits support the bar throughout its secular ev…
Orbits of globular clusters computed with dynamical friction in the Galactic anisotropic velocity dispersion field
Edmundo Moreno, José G. Fernández-Trincado, Angeles Pérez-Villegas +2
We present a preliminary analysis of the effect of dynamical friction on the orbits of part of the globular clusters in our Galaxy. Our study considers an anisotropic velocity disp…
Chaoticity in the vicinity of complex unstable periodic orbits in galactic type potentials
P. A. Patsis, T. Manos, L. Chaves-Velasquez +2
We investigate the evolution of phase space close to complex unstable periodic orbits in two galactic type potentials. They represent characteristic morphological types of disc gal…
APOGEE-2 Discovery of a Large Population of Relatively High-Metallicity Globular Cluster Debris
José G. Fernández-Trincado, Timothy C. Beers, Anna. B. A. Queiroz +13
We report the discovery of a new, chemically distinct population of relatively high-metallicity ([Fe/H] ) red giant stars with super-solar [N/Fe] () identifi…
Effect of orbital trapping by bar resonances in the local U-V velocity field
Edmundo Moreno, José G. Fernández-Trincado, William J. Schuster +2
The effects in the local U-V velocity field due to orbital trapping by bar resonances have been studied computing fifteen resonant families in a non-axisymmetric Galactic potential…
APOGEE discovery of a chemically atypical star disrupted from NGC 6723 and captured by the Milky Way bulge
José G. Fernández-Trincado, Timothy C. Beers, Dante Minniti +26
The central (`bulge') region of the Milky Way is teeming with a significant fraction of mildly metal-deficient stars with atmospheres that are strongly enriched in cyanogen ($^{12}…
Dynamics of thick, open spirals in Perlas potentials
L. Chaves-Velasquez, P. A. Patsis, I. Puerari +2
The PERLAS potential has been successfully used in many studies related with the dynamics of the spiral arms \textit{on} the equatorial plane of normal (non-barred) spiral galaxies…
Boxy Orbital Structures in Rotating Bar Models
L. Chaves-Velasquez, P. A. Patsis, I. Puerari +2
We investigate regular and chaotic two-dimensional (2D) and three-dimensional (3D) orbits of stars in models of a galactic potential consisting in a disk, a halo and a bar, to find…
Detecting the growth of structures in Pure Stellar Disk Models
Diego Valencia-Enríquez, Ivânio Puerari, Leonardo Chaves-Velasquez
We performed a series of 3D N-body simulations where the initial conditions were chosen to get two sets of models; unbarred and barred ones. In this work, we analyze the growth of…