activity
20012026
most citedBinary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions

3.7k citations · 23.4k across the 204 of their papers we have counts for

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145 papers · 1 filter

astro-ph.GA2026

The ringing Large Magellanic Cloud: evidence for a recent dwarf-dwarf collision

Slater J. Oden, Bethany Garver, Joshua Povick +2

Galaxy interactions are ubiquitous in the Universe and represent a primary pathway for galaxy growth. Close passages of dwarf galaxies can induce large-scale vertical oscillations…

astro-ph.GA2026

The Twentieth Data Release of the Sloan Digital Sky Survey: First All-Sky BOSS Spectra, eROSITA-SDSS-V Mapper Coordinated Observations, and a Preview of the Local Volume Mapper

SDSS Collaboration, Mojgan Aghakhanloo, David Aguilar +273

This paper presents the twentieth data release (DR20) from the Sloan Digital Sky Survey, the third data release of its fifth generation (SDSS-V). SDSS-V is a panoptic spectroscopy…

astro-ph.GA2026

Deep Imaging of Grus II and Horologium II: Structure and Extent of Two Ultra-Faint Milky Way Satellites

Deepthi S. Prabhu, David J. Sand, Anirudh Chiti +29

We present deep, wide-field Magellan/Megacam imaging of the ultra-faint Milky Way (MW) satellites Grus II (Gru II) and Horologium II (Hor II), with the aim of deriving improved con…

astro-ph.GA2026

Discovery and Spectroscopic Characterization of a Distant, Compact Milky Way Satellite in Gemini

K. Overdeck, W. Cerny, C. Y. Tan +27

We present the discovery of a compact Milky Way satellite in the constellation of Gemini. This system was discovered by cross-matching detections from two independent search algori…

astro-ph.GA2026

The DECam MAGIC Survey Mapping the Ancient Galaxy in CaHK: Overview and Summary of Early Science

A. Chiti, A. Drlica-Wagner, A. B. Pace +42

We present the DECam Mapping the Ancient Galaxy in CaHK (MAGIC) survey, a 54-night NOIRLab Survey Program to image 5,000deg of the southern hemisphere using a meta…

astro-ph.GA2026

Modeling the recent interactions between the Magellanic Clouds and Milky Way

Bethany Garver, David Nidever, Victor Debattista +1

The Large and Small Magellanic Clouds (LMC and SMC, respectively) are the largest satellite galaxies of the Milky Way (MW) and their interactions with each other have given rise to…

astro-ph.GA2026

Overview of The SDSS-V Magellanic Genesis Survey

David L. Nidever, Danny Horta, Steven R. Majewski +14

The Sloan Digital Sky Survey-V (SDSS-V) Magellanic Genesis survey is a spectroscopic program designed to map the kinematic and chemical structure of the Magellanic Clouds using APO…

astro-ph.GA2026

Discovery of the First Five Carbon-Enhanced Metal-Poor Stars in the LMC

Madeline Lucey, Vedant Chandra, Alexander Ji +7

A substantial fraction of metal-poor stars in the local Milky Way halo exhibit large overabundances of carbon. These stars, dubbed Carbon-Enhanced Metal-Poor (CEMP) stars, provide…

astro-ph.GA2025

Warped & Hooked: Mapping the Magellanic Clouds in 3D using Red Clump stars

Slater J. Oden, David L. Nidever, Joshua Povick +18

The Large and Small Magellanic Clouds (LMC and SMC) are the Milky Way's nearest interacting galaxy pair, offering a unique laboratory for studying tidal effects on galactic disks.…

astro-ph.GA2025

The Apache Point Observatory extra-Galactic Evolution Experiment (APOeGEE): Chemical Abundance Trends for Seven Dwarf Spheroidal Galaxies in the APOGEE Survey

Matthew Shetrone, Rachael L. Beaton, Christian R. Hayes +10

In addition to comprehensive surveys of the Milky Way bulge, disk, and halo, the Apache Point Galactic Evolution Experiment (APOGEE) project observed seven dwarf spheroidal satelli…

astro-ph.GA2025

Stellar Birth Radii in the LMC: Insights into Chemodynamics, Radial Migration, and Star Formation Across the Disk

Yuxi Lu, Bethany Garver, David L. Nidever +4

The LMC and SMC are interacting dwarf galaxies that offer a valuable testbed for studying the effects of galactic mergers. We investigate the chemodynamic history of the LMC in the…

astro-ph.GA2025★ 3 cited

Ultra-Faint Milky Way Satellites Discovered in Carina, Phoenix, and Telescopium with DELVE Data Release 3

C. Y. Tan, W. Cerny, A. B. Pace +76

We report the discovery of three Milky Way satellite candidates: Carina IV, Phoenix III, and DELVE 7, in the third data release of the DECam Local Volume Exploration survey (DELVE)…

astro-ph.GA2025

New Interpretation for the Orientation of the LMC's Gaseous Arms B and E using ULLYSES

April Horton, Suraj Poudel, Kathleen A. Barger +20

The Large Magellanic Cloud (LMC) experiences disruption from tidal and ram-pressure forces as it travels through the halo of the Milky Way. In this project, we combine radio emissi…

astro-ph.GA2025

An SDSS-V 3D Tomographic Na I Map of the ISM: An Initial Study Towards the Smith Cloud

Timothy McQuaid, Joseph N. Burchett, Kate H. R. Rubin +7

High velocity clouds supply the Milky Way with gas that sustains star formation over cosmic timescales. Precise distance measurements are therefore essential to quantify their mass…

astro-ph.GA2025★ 6 cited

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…

astro-ph.GA2025★ 8 cited

The Nineteenth Data Release of the Sloan Digital Sky Survey

SDSS Collaboration, Gautham Adamane Pallathadka, Mojgan Aghakhanloo +210

Mapping the local and distant Universe is key to our understanding of it. For decades, the Sloan Digital Sky Survey (SDSS) has made a concerted effort to map millions of celestial…

astro-ph.GA2025

Tidal Debris Candidates from the Centauri Accretion Event and its Role in Building Up the Milky Way Halo

Borja Anguiano, Arik Mitschang, Takanobu Kirihara +11

We identify stellar tidal debris from the Centauri ( Cen) system among field stars in the APOGEE survey via chemical tagging using a neural network trained on APOGEE observa…

astro-ph.GA2025★ 3 cited

Andromeda XXXV: The Faintest Dwarf Satellite of the Andromeda Galaxy

Jose Marco Arias, Eric F. Bell, Katya Gozman +8

We present the discovery of Andromeda XXXV, the faintest Andromeda satellite galaxy discovered to date, identified as an overdensity of stars in the Pan-Andromeda Archaeological Su…

astro-ph.GA2025★ 15 cited

Vertical structure and kinematics of the LMC disc from SDSS/Gaia

Ó. Jiménez-Arranz, D. Horta, R. P. van der Marel +4

[Abbreviated] Context: Studies of the LMC's internal kinematics have provided a detailed view of its structure, largely by the exquisite proper motion data supplied by Gaia. Howeve…

astro-ph.GA2024

Discovery and Spectroscopic Confirmation of Aquarius III: A Low-Mass Milky Way Satellite Galaxy

W. Cerny, A. Chiti, M. Geha +37

We present the discovery of Aquarius III, an ultra-faint Milky Way satellite galaxy identified in the second data release of the DECam Local Volume Exploration (DELVE) survey. Base…

astro-ph.GA2024★ 19 cited

A Pride of Satellites in the Constellation Leo? Discovery of the Leo VI Milky Way Satellite Galaxy with DELVE Early Data Release 3

C. Y. Tan, W. Cerny, A. Drlica-Wagner +32

We report the discovery and spectroscopic confirmation of an ultra-faint Milky Way (MW) satellite in the constellation of Leo. This system was discovered as a spatial overdensity o…

astro-ph.GA2024

Unveiling the purely young star formation history of the SMC's northeastern shell from colour-magnitude diagram fitting

Joanna D. Sakowska, Noelia E. D. Noël, Tomás Ruiz-Lara +12

We obtain a quantitative star formation history (SFH) of a shell-like structure ('shell') located in the northeastern part of the Small Magellanic Cloud (SMC). We use the Survey of…

astro-ph.GA2024★ 1 cited

The Extremely Metal Rich Knot of Stars at the Heart of the Galaxy

Hans-Walter Rix, Vedant Chandra, Gail Zasowski +15

We show with Gaia XP spectroscopy that extremely metal-rich stars in the Milky Way (EMR; ) - but only those - are largely confined to a tight "knot" at the center…

astro-ph.GA2024

A perspective on the Milky Way Bulge-Bar as seen from the neutron-capture elements Cerium and Neodymium with APOGEE

J. V. Sales-Silva, K. Cunha, V. V. Smith +28

This study probes the chemical abundances of the neutron-capture elements cerium and neodymium in the inner Milky Way from an analysis of a sample of 2000 stars in the Galact…