activity
20032025
most citedThe Seventh Data Release of the Sloan Digital Sky Survey

5.4k citations · 10k across the 45 of their papers we have counts for

collaborators

45 papers

astro-ph.GA2025★ 2 cited

Deciphering the Milky Way's star formation at cosmic noon with high proper-motion stars: A precursor to the merger-driven starburst

Deokkeun An, Young Sun Lee, Yutaka Hirai +1

Evidence suggests that the Milky Way (MW) underwent a major collision with the Gaia-Sausage/Enceladus (GSE) dwarf galaxy around cosmic noon. While GSE has since been fully disrupte…

astro-ph.GA2024★ 8 cited

A Blueprint for the Milky Way's Stellar Populations. V. 3D Local Dust Extinction

Deokkeun An, Timothy C. Beers, Anirudh Chiti

Using a grid of empirically calibrated synthetic spectra developed in our previous study, we construct an all-sky 3D extinction map from the large collection of low-resolution XP s…

astro-ph.GA2022★ 13 cited

Chemodynamical Analysis of Metal-rich High-eccentricity Stars in the Milky Way's Disk

Ayeon Lee, Young Sun Lee, Young Kwang Kim +2

We present a chemodynamical analysis of 11,562 metal-rich, high-eccentricity halo-like main-sequence (MS) stars, which has been referred to as the Splash or Splashed Disk, selected…

astro-ph.GA2022★ 9 cited

A Blueprint for the Milky Way's Stellar Populations. IV. A String of Pearls the Galactic Starburst Sequence

Deokkeun An, Timothy C. Beers, Young Sun Lee +1

We continue our series of papers on phase-space distributions of stars in the Milky Way based on photometrically derived metallicities and Gaia astrometry, with a focus on the halo…

astro-ph.GA2022★ 10 cited

Massive Young Stellar Objects in the Galactic Center. II. Seeing Through the Ice-rich Envelopes

Dajeong Jang, Deokkeun An, Kris Sellgren +3

To study the demographics of interstellar ices in the Central Molecular Zone (CMZ) of the Milky Way, we obtain near-infrared spectra of red point sources using NASA IRTF/SpeX…

astro-ph.GA2021★ 21 cited

A Blueprint for the Milky Way's Stellar Populations. III. Spatial Distributions and Population Fractions of Local Halo Stars

Deokkeun An, Timothy C. Beers

We analyze the observed spatial, chemical and dynamical distributions of local metal-poor stars, based on photometrically derived metallicity and distance estimates along with prop…