activity
19962026
most citedThe Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III

2.5k citations · 22.8k across the 170 of their papers we have counts for

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Showing 2018Show all

12 papers · 1 filter

astro-ph.SR2018★ 4 cited

unVEil the darknesS of The gAlactic buLgE (VESTALE)

G. Bono, M. Dall'Ora, M. Fabrizio +55

The main aim of this experiment is to provide a complete census of old (t > 10 Gyr, RR Lyrae, type II Cepheids, red horizontal branch), intermediate age (red clump, Miras) and youn…

astro-ph.SR2018

Spectral lines in the CaII triplet region for RAVE DR6 chemical abundance pipeline

Guillaume Guiglion, Cristina Chiappini, Marica Valentini +1

The purpose of this research note is to present a reliable list of clean spectral lines in the Calcium Triplet region at medium resolution ~7500, for chemical abundance analysis, i…

astro-ph.GA2018★ 60 cited

2D chemical evolution model: the impact of galactic disc asymmetries on azimuthal chemical abundance variations

E. Spitoni, G. Cescutti, I. Minchev +5

Galactic disc chemical evolution models generally ignore azimuthal surface density variation that can introduce chemical abundance azimuthal gradients. Recent observations, however…

astro-ph.SR2018★ 148 cited

The R-Process Alliance: First Release from the Northern Search for r-Process Enhanced Metal-Poor Stars in the Galactic Halo

Charli M. Sakari, Vinicius M. Placco, Elizabeth M. Farrell +26

This paper presents the detailed abundances and r-process classifications of 126 newly identified metal-poor stars as part of an ongoing collaboration, the R-Process Alliance. The…

astro-ph.GA2018★ 125 cited

The escape speed curve of the Galaxy obtained from Gaia DR2 implies a heavy Milky Way

Giacomo Monari, Benoit Famaey, Ismael Carrillo +6

We measure the escape speed curve of the Milky Way based on the analysis of the velocity distribution of counter-rotating halo stars from the Gaia DR2. The distances we…

astro-ph.SR2018★ 9 cited

Masses and ages for metal-poor stars: a pilot program combining asteroseismology and high-resolution spectroscopic follow-up of RAVE halo stars

M. Valentini, C. Chiappini, D. Bossini +10

Very metal-poor halo stars are the best candidates for being among the oldest objects in our Galaxy. Samples of halo stars with age determination and detailed chemical composition…