activity
19992021
most citedNew constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey

844 citations · 8.2k across the 86 of their papers we have counts for

collaborators

86 papers

astro-ph.SR2021★ 20 cited

Searching for new solar twins: The Inti survey for the Northern Sky

J. Y. Galarza, R. López-Valdivia, D. Lorenzo-Oliveira +9

Solar twins are key in different areas of astrophysics, however only just over a hundred were identified and well-studied in the last two decades. In this work, we take advantage o…

astro-ph.SR2020★ 9 cited

Investigating three Sirius-like systems with SPHERE

R. Gratton, V. D'Orazi, T. A. Pacheco +61

Sirius-like systems are wide binaries composed of a white dwarf (WD) and a companion of a spectral type earlier than M0. The WD progenitor evolves in isolation, but its wind during…

astro-ph.SR2020★ 117 cited

The -Process Alliance: Fourth Data Release from the Search for -Process-Enhanced Stars in the Galactic Halo

Erika M. Holmbeck, Terese T. Hansen, Timothy C. Beers +22

This compilation is the fourth data release from the -Process Alliance (RPA) search for -process-enhanced stars, and the second release based on "snapshot" high-resolution ($…

astro-ph.SR2020★ 31 cited

The R-Process Alliance: J1521-3538, a very metal-poor, extremely r-process-enhanced star with [Eu/Fe]=+2.2, and the class of r-III stars

Madelyn Cain, Anna Frebel, Alexander P. Ji +8

We report the discovery of J1521-3538, a bright (V=12.2), very metal-poor ([Fe/H]=-2.8) strongly r-process enhanced field horizontal branch star, based on a high-resolution, high s…

astro-ph.SR2020★ 90 cited

The R-process Alliance: First Magellan/MIKE Release from the Southern Search for R-Process-enhanced Stars

Rana Ezzeddine, Kaitlin Rasmussen, Anna Frebel +9

Extensive progress has been recently made into our understanding of heavy element production via the -process in the Universe, specifically with the first observed neutron star…

astro-ph.SR2020★ 15 cited

Rotation of solar analogs cross-matching Kepler and Gaia DR2

Jose-Dias do Nascimento, Leandro de Almeida, Eduardo Nunes Velloso +10

A major obstacle to interpreting the rotation period distribution for main-sequence stars from Kepler mission data has been the lack of precise evolutionary status for these object…