author={E. C. Wylie-de Boer and Kenneth A. Freeman and Mary E. K. Williams},
  journal={The Astronomical Journal},
  pages={636 - 645}
This paper presents a detailed kinematic and chemical analysis of 16 members of the Kapteyn moving group. The group does not appear to be chemically homogenous. However, the kinematics and the chemical abundance patterns seen in 14 of the stars in this group are similar to those observed in the well-studied cluster, ω Centauri (ω Cen). Some members of this moving group may be remnants of the tidal debris of ω Cen, left in the Galactic disk during the merger event that deposited ω Cen into the… 
The Aquarius comoving group is not a disrupted classical globular cluster
We present a detailed analysis of high-resolution, high S/N spectra for 5 Aquarius stream stars observed with the MIKE spectrograph on the Magellan Clay telescope. Our sample represents one third of
Discovery of new retrograde substructures: the shards of ω Centauri?
We use the Sloan Digital Sky Survey (SDSS)– Gaia catalogue to search for substructure in the stellar halo. The sample comprises 62 133 halo stars with full phase space coordinates and extends out to
Through thick and thin: kinematic and chemical components in the solar neighbourhood
We search for chemically distinct stellar components in the solar neighbourhood using a compilation of published data. Extending earlier work, we show that when the abundances of Fe, α elements and
Searching for tidal tails around ω Centauri using RR Lyrae stars
We present a survey for RR Lyrae stars in an area of 50 deg$^2$ around the globular cluster $\omega$ Centauri, aimed to detect debris material from the alleged progenitor galaxy of the cluster. We
We derive homogeneous abundances of Fe, O, Na, and α-elements from high-resolution FLAMES spectra for 76 red giant stars in NGC 6715 (M54) and for 25 red giants in the surrounding nucleus of the
Asymmetric metallicity patterns in the stellar velocity space with RAVE
Context. The chemical abundances of stars encode information on their place and time of origin. Stars formed together in e.g. a cluster, should present chemical homogeneity. Also disk stars
Formation of multiple populations in globular clusters: another possible scenario
Aims. While chemical composition spreads are now believed to be a universal characteristic of globular clusters (GCs), not al l of them present multiple populations in their color-magnitude diagrams
A New Formation Model for ω Centauri: A Complex Interplay of Astrophysical Processes
We investigate the formation processes of the Galactic globular cluster (GC) ω Cen with multiple stellar populations based on our original hydrodynamical simulations with chemical enrichment by Type
Radial velocities of K–M dwarfs and local stellar kinematics
Aims. The goal of this paper is to present complete radial-velocity data for the spectroscopically selected McCormick sample of nearby K–M dwarfs and, based on these and supplementary data, to


Accretion relics in the solar neighbourhood : Debris from ωCen's parent galaxy
We use numerical simulations to investigate the orbital characteristics of tidal debris from satellites whose orbits are dragged into the plane of galact ic disks by dynamical friction before
The Chemical Evolution of the Globular Cluster ω Centauri (NGC 5139)
We present abundances for 22 chemical elements in 10 red giant members of the massive Galactic globular cluster ω Centauri. The spectra are of relatively high spectral resolution and signal-to-noise.
The Giant Branch of ω Centauri: The Dependence of Kinematics on Abundance
For a sample of some 400 red giants in the chemically inhomogeneous globular cluster ω Centauri, we report correlations between the radial velocities of Mayor et al., which are accurate to ≲1 km s-1,
Space Velocities of Globular Clusters. III. Cluster Orbits and Halo Substructure
We have compiled a catalog of absolute proper motions of globular clusters from various sources. The sample consists of 38 clusters, from which most of the southern ones (15 clusters) were measured
Using a sample of 246 metal-poor stars (RR Lyraes, red giants, and red horizontal branch stars) which is remarkable for the accuracy of its six-dimensional kinematical data, we find, by examining the
Abundances for metal-poor stars with accurate parallaxes - II. $\alpha-$elements in the halo
Abundances for α−elements and Fe in about 150 field subdwarfs and early subgiants with accurate parallaxes and kinematic data are used to discuss the run of abundance ratios in metal-poor stars in
Abundances and Kinematics of Field Halo and Disk Stars. I. Observational Data and Abundance Analysis
We describe observations and abundance analysis of a high-resolution, high signal-to-noise ratio survey of 168 stars, most of which are metal-poor dwarfs. We follow a self-consistent LTE analysis
A Survey of Proper-Motion Stars. XVI. Orbital Solutions for 171 Single-lined Spectroscopic Binaries*
We report 25,563 radial velocity measurements for 1359 single-lined stars in the Carney-Latham sample of 1464 stars selected for high proper motion. For 171 of these, we present spectroscopic orbital
Kinematics of Metal-poor Stars in the Galaxy. II. Proper Motions for a Large Nonkinematically Selected Sample
We present a revised catalog of 2106 Galactic stars, selected without kinematic bias and with available radial velocities, distance estimates, and metal abundances in the range -4.0 ≤ [Fe/H] ≤ 0.0.
Abundances of the elements: Meteoritic and solar