5.4k citations · 64.6k across the 531 of their papers we have counts for
9 papers · 2 filters
Disentangling the Galactic Halo with APOGEE: II. Chemical and Star Formation Histories for the Two Distinct Populations
Emma Fernández-Alvar, Leticia Carigi, William J. Schuster +13
The formation processes that led to the current Galactic stellar halo are still under debate. Previous studies have provided evidence for different stellar populations in terms of…
Disentangling the Galactic Halo with APOGEE: I. Chemical and Kinematical Investigation of Distinct Metal-Poor Populations
Christian R. Hayes, Steven R. Majewski, Matthew Shetrone +21
We find two chemically distinct populations separated relatively cleanly in the [Fe/H] - [Mg/Fe] plane, but also distinguished in other chemical planes, among metal-poor stars (pri…
The central spheroids of Milky Way mass-sized galaxies
Patricia B. Tissera, Rubens E. G. Machado, Daniela Carollo +4
We study the properties of the central spheroids located within 10 kpc of the centre of mass of Milky Way mass-sized galaxies simulated in a cosmological context. The simulated cen…
APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy
Sten Hasselquist, Matthew Shetrone, Verne Smith +23
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) provides the opportunity to measure elemental abundances for C, N, O, Na, Mg, Al, Si, P, K, Ca, V, Cr, Mn, Fe, C…
Atypical Mg-poor Milky Way field stars with globular cluster second-generation like chemical patterns
J. G. Fernández-Trincado, O. Zamora, D. A. Garcia-Hernandez +48
We report the peculiar chemical abundance patterns of eleven atypical Milky Way (MW) field red giant stars observed by the Apache Point Observatory Galactic Evolution Experiment (A…
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
Bela Abolfathi, D. S. Aguado, Gabriela Aguilar +344
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourtee…
Timing the Evolution of the Galactic Disk with NGC 6791: An Open Cluster with Peculiar High- Chemistry as seen by APOGEE
Sean T. Linden, Matthew Pryal, Christian R. Hayes +19
We utilize elemental-abundance information for Galactic red giant stars in five open clusters (NGC 7789, NGC 6819, M67, NGC 188, and NGC 6791) from the Apache Point Observatory Gal…
Baade's window with APOGEE: Metallicities, ages and chemical abundances
M. Schultheis, A. Rojas-Arriagada, A. E. García Pérez +23
Baade's window (BW) is one of the most observed Galactic bulge fields in terms of chemical abundances. Due to its low and homogeneous interstellar absorption it is considered as a…
Chemical Cartography. I. A Carbonicity Map of the Galactic Halo
Young Sun Lee, Timothy C. Beers, Young Kwang Kim +5
We present the first map of carbonicity, [C/Fe], for the halo system of the Milky Way, based on a sample of over 100,000 main-sequence turnoff stars with available spectroscopy fro…