activity
20112017
most citedTwo distinct halo populations in the solar neighborhood. III. Evidence from stellar ages and orbital parameters

123 citations · 357 across the 10 of their papers we have counts for

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Showing astro-ph.GAShow all

7 papers · 1 filter

astro-ph.GA2017★ 29 cited

Dynamics and Morphology of the Milky Way Spiral Arms from the Metallicity Distribution and Radial Mixing

L. A. Martinez-Medina, B. Pichardo, A. Peimbert +1

Albeit radial migration must be a ubiquitous process in disc galaxies, its significance in the evolution of stellar discs is not always reflected through global trends. However, th…

astro-ph.GA2016★ 13 cited

Close encounters involving RAVE stars beyond the 47 Tucanae tidal radius

J. G. Fernández-Trincado, A. C. Robin, C. Reylé +5

The most accurate 6D phase-space information from the Radial Velocity Experiment (RAVE) was used to integrate the orbits of 105 stars around the galactic globular cluster 47 Tucana…

astro-ph.GA2016★ 18 cited

Revealing the spiral arms through radial migration and the shape of the Metallicity Distribution Function

L. A. Martinez-Medina, B. Pichardo, E. Moreno +1

Recent observations show that the Milky Way's metallicity distribution function (MDF) changes its shape as a function of radius. This new evidence of radial migration within the st…

astro-ph.GA2016★ 63 cited

Discovery of a Metal-Poor Field Giant with a Globular Cluster Second-Generation Abundance Pattern

J. G. Fernández-Trincado, A. C. Robin, E. Moreno +31

We report on detection, from observations obtained with the APOGEE spectroscopic survey, of a metal-poor ([Fe/H] dex) field giant star with an extreme Mg-Al abundance rati…

astro-ph.GA2016★ 18 cited

On the Origin of High-Altitude Open Clusters in the Milky Way

L. A. Martinez-Medina, B. Pichardo, E. Moreno +2

We present a dynamical study of the effect of the bar and spiral arms on the simulated orbits of open clusters in the Galaxy. Specifically, this work is devoted to the puzzling pre…

astro-ph.GA2013★ 10 cited

Stellar Orbital Studies in Normal Spiral Galaxies I: Restrictions to the Pitch Angle

A. Pérez-Villegas, B. Pichardo, E. Moreno

We built a family of non-axisymmetric potential models for normal non-barred or weakly-barred spiral galaxies as defined in the simplest classification of galaxies: the Hubble sequ…