681 citations · 8.1k across the 107 of their papers we have counts for
71 papers · 1 filter
Barium and europium abundances from the Gaia-ESO Survey using The Cannon
Pradosh Barun Das, Francesca Primas, Gayandhi De Silva +3
Neutron-capture element abundances encode the time-dependent interplay between slow (s-) and rapid (r-) nucleosynthetic processes and provide critical constraints on Galactic chemi…
Orbital Torus Imaging: Acceleration, density, and dark matter in the Galactic disk measured with element abundance gradients
Danny Horta, Adrian M. Price-Whelan, David W. Hogg +5
Under the assumption of a simple and time-invariant gravitational potential, many Galactic dynamics techniques infer the Milky Way's mass and dark matter distribution from stellar…
Chemical Cartography of the Sagittarius Stream with Gaia
Emily C. Cunningham, Jason A. S. Hunt, Adrian M. Price-Whelan +5
The stellar stream connected to the Sagittarius (Sgr) dwarf galaxy is the most massive tidal stream that has been mapped in the Galaxy, and is the dominant contributor to the outer…
Roman Early-Definition Astrophysics Survey Opportunity: Galactic Roman Infrared Plane Survey (GRIPS)
Roberta Paladini, Catherine Zucker, Robert Benjamin +67
A wide-field near-infrared survey of the Galactic disk and bulge/bar(s) is supported by a large representation of the community of Galactic astronomers. The combination of sensitiv…
The individual abundance distributions of disc stars across birth radii in GALAH
Kaile Wang, Andreia Carrillo, Melissa K. Ness +1
Individual abundances in the Milky Way disc record stellar birth properties (e.g. age, birth radius ()) and capture the diversity of the star-forming environments ov…
Data-driven Discovery of Diffuse Interstellar Bands with APOGEE Spectra
Kevin A. McKinnon, Melissa K. Ness, Constance M. Rockosi +1
Data-driven models of stellar spectra are useful tools to study non-stellar information, such as the Diffuse Interstellar Bands (DIBs) caused by intervening interstellar material.…
KPM: A Flexible and Data-Driven K-Process Model for Nucleosynthesis
Emily J. Griffith, David W. Hogg, Julianne J. Dalcanton +4
The element abundance pattern found in Milky Way disk stars is close to two-dimensional, dominated by production from one prompt process and one delayed process. This simplicity is…
The chemical enrichment of the Milky Way disk evaluated using conditional abundances
Bridget Ratcliffe, Melissa Ness
Chemical abundances of stars in the Milky Way disk are empirical tracers of its enrichment history. However, they capture joint-information that is valuable to disentangle. In this…
Dynamically constraining the length of the Milky Way bar
Madeline Lucey, Sarah Pearson, Jason A. S. Hunt +5
We present a novel method for constraining the length of the Galactic bar using 6D phase space information to directly integrate orbits. We define a pseudo-length for the Galactic…
Reliability and limitations of inferring birth radii in the Milky Way disk
Yuxi Lu, Tobias Buck, Ivan Minchev +1
Recovering the birth radii of observed stars in the Milky Way is one of the ultimate goals of Galactic Archaeology. One method to infer the birth radius and the evolution of the IS…
The relationship between age, metallicity, and abundances for disk stars in a simulated Milky Way galaxy
Andreia Carrillo, Melissa K. Ness, Keith Hawkins +4
Observations of the Milky Way's low- disk show that at fixed metallicity, [Fe/H], several element abundance, [X/Fe], correlate with age, with unique slopes and small scatters ar…
Migration and Mixing in the Galactic Disc from Encounters between Sagittarius and the Milky Way
Christopher Carr, Kathryn V. Johnston, Chervin F. P. Laporte +1
Stars born on near-circular orbits in spiral galaxies can subsequently migrate to different orbits due to interactions with non-axisymmetric disturbances within the disc such as ba…
Turning Points in the Age-Metallicity Relations -- Created by Late Satellite Infall and Enhanced by Radial Migration
Yuxi Lu, Melissa K. Ness, Tobias Buck +1
The present-day Age-Metallicity Relation (AMR) is a record of the star formation history of the Galaxy, as this traces the chemical enrichment of the gas over time. We use a zoomed…
Stellar Abundance Maps of the Milky Way Disk
Anna-Christina Eilers, David W. Hogg, Hans-Walter Rix +4
To understand the formation of the Milky Way's prominent bar it is important to know whether stars in the bar differ in the chemical element composition of their birth material as…
Neutron-capture elements record the ordered chemical evolution of the disc over time
Danny Horta, Melissa K. Ness, Jan Rybizki +2
An ensemble of chemical abundances probing different nucleosynthetic channels can be leveraged to build a comprehensive understanding of the chemical and structural evolution of th…
Reading the CARDs: the Imprint of Accretion History in the Chemical Abundances of the Milky Way's Stellar Halo
Emily C. Cunningham, Robyn E. Sanderson, Kathryn V. Johnston +7
In the era of large-scale spectroscopic surveys in the Local Group (LG), we can explore using chemical abundances of halo stars to study the star formation and chemical enrichment…
Measuring chemical likeness of stars with RSCA
Damien de Mijolla, Melissa K. Ness
Identification of chemically similar stars using elemental abundances is core to many pursuits within Galactic archaeology. However, measuring the chemical likeness of stars using…
The homogeneity of the star forming environment of the Milky Way disk over time
Melissa K. Ness, Adam J. Wheeler, Kevin McKinnon +4
Stellar abundances and ages afford the means to link chemical enrichment to galactic formation. In the Milky Way, individual element abundances show tight correlations with age, wh…
The GALAH Survey: Chemical tagging and chrono-chemodynamics of accreted halo stars with GALAH+ DR3 and eDR3
Sven Buder, Karin Lind, Melissa K. Ness +27
Since the advent of astrometry, it is possible to identify massive accreted systems within the Galaxy through their unique dynamical signatures. One such system, -Saus…
Final Targeting Strategy for the SDSS-IV APOGEE-2N Survey
Rachael L. Beaton, Ryan J. Oelkers, Christian R. Hayes +57
APOGEE-2 is a dual-hemisphere, near-infrared (NIR), spectroscopic survey with the goal of producing a chemo-dynamical mapping of the Milky Way Galaxy. The targeting for APOGEE-2 is…
The Astrophysical Variance in Gaia-RVS Spectra
Rayna Rampalli, Melissa Ness, Shola Wylie
Large surveys are providing a diversity of spectroscopic observations with Gaia alone set to deliver millions of Ca-triplet-region spectra across the Galaxy. We aim to understand t…
Tracing birth properties of stars with abundance clustering
Bridget L. Ratcliffe, Melissa K. Ness, Tobias Buck +4
To understand the formation and evolution of the Milky Way disk, we must connect its current properties to its past. We explore hydrodynamical cosmological simulations to investiga…
The COMBS Survey -- III. The Chemodynamical Origins of Metal-Poor Bulge Stars
Madeline Lucey, Keith Hawkins, Melissa Ness +6
The characteristics of the stellar populations in the Galactic Bulge inform and constrain the Milky Way's formation and evolution. The metal-poor population is particularly importa…
The Hough Stream Spotter: A New Method for Detecting Linear Structure in Resolved Stars and Application to the Stellar Halo of M31
Sarah Pearson, Susan E. Clark, Alexis J. Demirjian +5
Stellar streams from globular clusters (GCs) offer constraints on the nature of dark matter and have been used to explore the dark matter halo structure and substructure of our Gal…