681 citations · 3.5k across the 36 of their papers we have counts for
34 papers · 1 filter
A Galactic Self-Portrait: Density Structure and Integrated Properties of the Milky Way Disk
Julie Imig, Jon A. Holtzman, Gail Zasowski +23
The evolution history of the Milky Way disk is imprinted in the ages, positions, and chemical compositions of individual stars. In this study, we derive the intrinsic density distr…
SF-R You Sure? The Conflicting Role of Star Formation Rates in Constraining the Evolution of Milky Way Analogues in Cosmological Simulations
Alicia M. Savelli, Joshua S. Speagle, J. Ted Mackereth +2
Milky Way analogues (MWAs) have long been studied by astronomers to place our Galaxy within an extragalactic context. With the power of cosmological simulations, we are now able to…
The evolution of the Milky Way's thin disc radial metallicity gradient with K2 asteroseismic ages
Emma Willett, Andrea Miglio, J. Ted Mackereth +8
The radial metallicity distribution of the Milky Way's disc is an important observational constraint for models of the formation and evolution of our Galaxy. It informs our underst…
Disentangling Stellar Age Estimates from Galactic Chemodynamical Evolution
Jeff Shen, Joshua S. Speagle, J. Ted Mackereth +2
Stellar ages are key for determining the formation history of the Milky Way, but are difficult to measure precisely. Furthermore, methods that use chemical abundances to infer ages…
A variational encoder-decoder approach to precise spectroscopic age estimation for large Galactic surveys
Henry W. Leung, Jo Bovy, J. Ted Mackereth +1
Constraints on the formation and evolution of the Milky Way Galaxy require multi-dimensional measurements of kinematics, abundances, and ages for a large population of stars. Ages…
A direct measurement of the distance to the Galactic center using the kinematics of bar stars
Henry W. Leung, Jo Bovy, J. Ted Mackereth +3
The distance to the Galactic center is a fundamental parameter for understanding the Milky Way, because all observations of our Galaxy are made from our heliocentric referenc…
The chemical characterisation of halo substructure in the Milky Way based on APOGEE
Danny Horta, Ricardo P. Schiavon, J. Ted Mackereth +21
Galactic haloes in a -CDM universe are predicted to host today a swarm of debris resulting from cannibalised dwarf galaxies. The chemo-dynamical information recorded in their st…
The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
Abdurro'uf, Katherine Accetta, Conny Aerts +337
This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete…
Predicting the water content of interstellar objects from galactic star formation histories
Chris Lintott, Michele T. Bannister, J. Ted Mackereth
Planetesimals inevitably bear the signatures of their natal environment, preserving in their composition a record of the metallicity of their system's original gas and dust, albeit…
APOGEE Detection of N-rich stars in the tidal tails of Palomar 5
Sian G. Phillips, Ricardo P. Schiavon, J. Ted Mackereth +15
Recent results from chemical tagging studies using APOGEE data suggest a strong link between the chemical abundance patterns of stars found within globular clusters, and chemically…
Chemical Cartography with APOGEE: Mapping Disk Populations with a Two-Process Model and Residual Abundances
David H. Weinberg, Jon A. Holtzman, Jennifer A. Johnson +33
We apply a novel statistical analysis to measurements of 16 elemental abundances in 34,410 Milky Way disk stars from the final data release (DR17) of APOGEE-2. Building on recent w…
The Kinematic Properties of Milky Way Stellar Halo Populations
James M. M. Lane, Jo Bovy, J. Ted Mackereth
In the era stellar kinematics are extensively used to study Galactic halo stellar populations, to search for halo structures, and to characterize the interface between the h…
New families in our Solar neighborhood: applying Gaussian Mixture models for objective classification of structures in the Milky Way and in simulations
Farnik Nikakhtar, Robyn E. Sanderson, Andrew Wetzel +10
The standard picture of galaxy formation motivates the decomposition of the Milky Way into 3--4 stellar populations with distinct kinematic and elemental abundance distributions: t…
An enquiry on the origins of N-rich stars in the inner Galaxy basedon APOGEE chemical compositions
Shobhit Kisku, Ricardo P. Schiavon, Danny Horta +10
Recent evidence based on APOGEE data for stars within a few kpc of the Galactic centre suggests that dissolved globular clusters (GCs) contribute significantly to the stellar mass…
Prospects for Galactic and stellar astrophysics with asteroseismology of giant stars in the Continuous Viewing Zones and beyond
J. Ted Mackereth, Andrea Miglio, Yvonne Elsworth +30
The NASA- mission presents a treasure trove for understanding the stars it observes and the Milky Way, in which they reside. We present a first look at the prospects for…
The contribution of N-rich stars to the Galactic stellar halo using APOGEE red giants
Danny Horta, J. Ted Mackereth, Ricardo P. Schiavon +13
The contribution of dissolved globular clusters (GCs) to the stellar content of the Galactic halo is a key constraint on models for GC formation and destruction, and the mass assem…
Evidence from APOGEE for the presence of a major building block of the halo buried in the inner Galaxy
Danny Horta, Ricardo P. Schiavon, J. Ted Mackereth +13
We report evidence from APOGEE for the presence of a new metal-poor stellar structure located within 4~kpc of the Galactic centre. Characterised by a chemical composition res…
Chronologically dating the early assembly of the Milky Way
Josefina Montalbán, John Ted Mackereth, Andrea Miglio +16
The standard cosmological model (-CDM) predicts that galaxies are built through hierarchical assembly on cosmological timescales. The Milky Way, like other disc galaxies…
The building blocks of the Milky Way halo using APOGEE and Gaia -- or -- Is the Galaxy a typical galaxy?
Ricardo P. Schiavon, J. Ted Mackereth, Joel Pfeffer +2
We summarise recent results from analysis of APOGEE/Gaia data for stellar populations in the Galactic halo, disk, and bulge, leading to constraints on the contribution of dwarf gal…
The Chemical Compositions of Accreted and {\it in situ} Galactic Globular Clusters According to SDSS/APOGEE
Danny Horta, Ricardo P. Schiavon, J. Ted Mackereth +16
Studies of the kinematics and chemical compositions of Galactic globular clusters (GCs) enable the reconstruction of the history of star formation, chemical evolution, and mass ass…
Age dating of an early Milky Way merger via asteroseismology of the naked-eye star Indi
William J. Chaplin, Aldo M. Serenelli, Andrea Miglio +81
Over the course of its history, the Milky Way has ingested multiple smaller satellite galaxies. While these accreted stellar populations can be forensically identified as kinematic…
Weighing the stellar constituents of the Galactic halo with APOGEE red giant stars
J. Ted Mackereth, Jo Bovy
The stellar mass in the halo of the Milky Way is notoriously difficult to determine, owing to the paucity of its stars in the solar neighbourhood. With tentative evidence from $\it…
Searching for Solar Siblings in APOGEE and DR2 with N-body Simulations
Jeremy J. Webb, Natalie Price-Jones, Jo Bovy +4
We make use of APOGEE and data to identify stars that are consistent with being born in the same association or star cluster as the Sun. We limit our analysis to stars that…
Life in the fast lane: a direct view of the dynamics, formation, and evolution of the Milky Way's bar
Jo Bovy, Henry W. Leung, Jason A. S. Hunt +3
Studies of the ages, abundances, and motions of individual stars in the Milky Way provide one of the best ways to study the evolution of disk galaxies over cosmic time. The formati…