Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Moreno, Edmundo"'
The shearing motion of tidal flows that are excited in non-equilibrium binary stars transform kinetic energy into heat via a process referred to as tidal heating. In this paper we aim to explore the way tidal heating affects the stellar structure. We
Externí odkaz:
http://arxiv.org/abs/2301.07878
Autor:
Moreno, Edmundo, Fernández-Trincado, José G., Pérez-Villegas, Angeles, Chaves-Velasquez, Leonardo, Schuster, William J.
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 dispersion field approximated using the results of studies in the literatu
Externí odkaz:
http://arxiv.org/abs/2112.11589
Autor:
Fernández-Trincado, José G., Beers, Timothy C., Queiroz, Anna. B. A., Chiappini, Cristina, Minniti, Dante, Barbuy, Beatriz, Majewski, Steven R., Ortigoza-Urdaneta, Mario, Bidin, Christian Moni, Robin, Annie C., Moreno, Edmundo, Chaves-Velasquez, Leonardo, Villanova, Sandro, Lane, Richard R., Pan, Kaike, Bizyaev, Dmitry
We report the discovery of a new, chemically distinct population of relatively high-metallicity ([Fe/H] $> -0.7$) red giant stars with super-solar [N/Fe] ($\gtrsim +0.75$) identified within the bulge, disk, and halo of the Milky Way. This sample of s
Externí odkaz:
http://arxiv.org/abs/2109.02669
Publikováno v:
A&A 653, A127 (2021)
Rotation contributes to internal mixing processes and observed variability in massive stars. A significant number of binary stars are not in strict synchronous rotation, including all eccentric systems. This leads to a tidally induced and time-variab
Externí odkaz:
http://arxiv.org/abs/2107.09190
Autor:
Moreno, Edmundo, Fernández-Trincado, José G., Schuster, William J., Pérez-Villegas, Angeles, Chaves-Velasquez, Leonardo
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, considering the bar's angular velocity between 35 and 57.5 ${\rm\,km
Externí odkaz:
http://arxiv.org/abs/2107.00188
Autor:
Romero-Colmenares, María, Fernández-Trincado, José G., Geisler, Doug, Souza, Stefano O., Villanova, Sandro, Minniti, Penélope Longa-Peña Dante, Beers, Timothy C., Bidin, Cristian Moni, Pérez-Villegas, Angeles, Moreno, Edmundo, Garro, Elisa R., Baeza, Ian, Henao, Lady, Barbuy, Beatriz, Alonso-García, Javier, Cohen, Roger E., Lane, Richard R., Muñoz, Cesar
Publikováno v:
A&A 652, A158 (2021)
We present results from a study of fifteen red giant members of the intermediate-metallicity globular cluster (GC) FSR 1758 using high-resolution near-infrared spectra collected with the Apache Point Observatory Galactic Evolution Experiment II surve
Externí odkaz:
http://arxiv.org/abs/2106.00027
Autor:
Asmat Uceda, Rafael Marcel1 rasmat@unitru.edu.pe, Vergara Moreno, Edmundo Rubén2 evergara@unitru.edu.pe
Publikováno v:
Trimestre Económico. abr-jun 2024, Vol. 91 Issue 362, p437-475. 39p.
Autor:
Kundu, Richa, Fernández-Trincado, José G., Minniti, Dante, Singh, Harinder P., Moreno, Edmundo, Reylé, Céline, Robin, Annie C., Soto, Mario
We report the identification of possible extended star debris candidates beyond the cluster tidal radius of NGC 6362 based on the second {\it Gaia} data release ({\it Gaia} DR2). We found 259 objects possibly associated with the cluster lying in the
Externí odkaz:
http://arxiv.org/abs/1909.02016
Autor:
Fernández-Trincado, José G., Beers, Timothy C., Tang, Baitian, Moreno, Edmundo, Pérez-Villegas, Angeles, Ortigoza-Urdaneta, Mario
The latest edition of the APOGEE-2/DR14 survey catalogue and the first \texttt{Payne} data release of APOGEE abundance determinations by Ting et al. are examined. We identify 31 previously unremarked metal-poor giant stars with anomalously high level
Externí odkaz:
http://arxiv.org/abs/1904.05369
Autor:
Fernández-Trincado, José G., Chaves-Velasquez, Leonardo, Pérez-Villegas, Angeles, Vieira, Katherine, Moreno, Edmundo, Ortigoza-Urdaneta, Mario, Vega-Neme, Luis
We have used the galaxy modeling algorithm \texttt{GravPot16}, to explore the more probable orbital elements of a sample of 64 selected N-rich stars across the Milky Way. Using the newly measured proper motions from \texttt{Gaia} DR2 with existing li
Externí odkaz:
http://arxiv.org/abs/1904.05370