activity
20192026
most citedSystematically Measuring Ultra-Diffuse Galaxies (SMUDGes). V. The Complete SMUDGes Catalog and the Nature of Ultra-Diffuse Galaxies

69 citations · 183 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.GA2026

SMUDGes Below the Surface: Clusters Confirm the Diversity of Low-Surface-Brightness Galaxies

Donghyeon J. Khim, Dennis Zaritsky, Loraine Sandoval Ascencio +2

We use spatially resolved Keck Cosmic Web Imager spectroscopy to study high-surface-brightness stellar components and internal kinematics in 44 low-surface-brightness galaxies from…

astro-ph.GA2026

Systematically Measuring Ultra-Diffuse Galaxies. IX. A Gyr in the Life of Nearby Low Surface Brightness Galaxies

Dennis Zaritsky, Richard Donnerstein, Loraine Sandoval Ascencio +3

We augment the published optical photometry of ultra-diffuse galaxy candidates in the SMUDGes catalog with UV and IR measurements to investigate the recent ( Gyr) star formatio…

astro-ph.GA2026

ID-MAGE II: The Star Forming Satellites of Low-Mass Hosts

Laura Congreve Hunter, Burçin Mutlu-Pakdil, Michael B. Farnell +14

We present results from our ongoing campaign to follow up the satellite candidates from the Identifying Dwarfs of MC Analog GalaxiEs (ID-MAGE) survey. Previously, we published a li…

astro-ph.GA2026

Blobs and Blurs: A Citizen Science-Identified Catalog of Diffuse Galaxies in the Fornax Cluster

Nicolas Mazziotti, Michael G. Jones, Donghyeon J. Khim +2

We present a catalog of 643 diffuse galaxies identified through a citizen science search of the Fornax cluster, of which we estimate 21.8% are nucleated (139/637; 6 inconclusive).…

astro-ph.GA2025

SEAMLESS Survey: Four Faint Dwarf Galaxies Tracing Low-Mass Galaxy Evolution Across Environments

Catherine E. Fielder, Michael G. Jones, David J. Sand +11

We report on four Local Volume dwarf galaxies identified through our ongoing SEmi-Automated Machine LEarning Search for Semi-resolved galaxies (SEAMLESS): Hydrus A, LEDA 486718, Ce…

astro-ph.GA2025★ 4 cited

Systematically Measuring Ultra-Diffuse Galaxies. VIII. Misfits, Miscasts, and Miscreants

Dennis Zaritsky, Richard Donnerstein, Donghyeon J. Khim

We re-examine the 7,070 candidate ultra-diffuse galaxies (UDGs) in the SMUDGes survey and provide classifications based on their visual morphology. Among the more interesting cases…

astro-ph.GA2025

Identifying Dwarfs of MC Analog GalaxiEs (ID-MAGE): The Search for Satellites Around Low-Mass Hosts

Laura Congreve Hunter, Burçin Mutlu-Pakdil, David J. Sand +11

We present results from ID-MAGE (Identifying Dwarfs of MC Analog GalaxiEs), a survey aimed at identifying and characterizing unresolved satellite galaxies around 36~nearby LMC- and…

astro-ph.GA2025★ 5 cited

A Closer Look at an Unusual Ultra-Diffuse Galaxy

Donghyeon J. Khim, Dennis Zaritsky, Loraine Sandoval Ascencio +2

We present a spectroscopic study of the ``Disco Ball'' (SMDG0038365-064207), a rotationally-supported, red-sequence, ultra-diffuse galaxy (UDG) with a nuclear star cluster (NSC), m…

astro-ph.GA2025★ 3 cited

Caught in the Act of Quenching? -- A Population of Post-Starburst Ultra-Diffuse Galaxies

Loraine Sandoval Ascencio, M. C. Cooper, Dennis Zaritsky +3

We report the discovery of post-starburst ultra-diffuse galaxies (UDGs), identified through spectroscopic analysis with KCWI at the Keck II Telescope. Our analysis is based on a sa…

astro-ph.GA2024★ 8 cited

Properties of Nuclear Star Clusters in Low Surface Brightness Galaxies

Donghyeon J. Khim, Dennis Zaritsky, Mika Lambert +1

Using the SMUDGes and SDSS catalogs, and our own reprocessing of the Legacy Surveys imaging, we investigate the properties of nuclear star clusters (NSCs) in galaxies having centra…

astro-ph.GA2023

Systematically Measuring Ultra-Diffuse Galaxies (SMUDGes). VI. Nuclear Star Clusters

Mika Lambert, Donghyeon J. Khim, Dennis Zaritsky +1

We present our photometric search for potential nuclear star clusters (NSCs) in ultra-diffuse galaxies (UDGs) as an extension of the SMUDGes catalog. We identify 325 SMUDGes galaxi…

astro-ph.GA2023★ 69 cited

Systematically Measuring Ultra-Diffuse Galaxies (SMUDGes). V. The Complete SMUDGes Catalog and the Nature of Ultra-Diffuse Galaxies

Dennis Zaritsky, Richard Donnerstein, Arjun Dey +5

We present the completed catalog of ultra-diffuse galaxy (UDG) candidates (7070 objects) from our search of the DR9 Legacy Survey images, including distance and total mass estimate…

astro-ph.GA2023★ 6 cited

An Enigmatic 380 kpc Long Linear Collimated Galactic Tail

Dennis Zaritsky, Jacob P. Crossett, Yara L. Jaffé +7

We present an intriguing, serendipitously-detected system consisting of an S0/a galaxy, which we refer to as the "Kite", and a highly-collimated tail of gas and stars that extends…

astro-ph.GA2020★ 20 cited

Star-Gas Misalignment in Galaxies: II. Origins Found from the Horizon-AGN Simulation

Donghyeon J. Khim, Sukyoung K. Yi, Christophe Pichon +5

There have been many studies aiming to reveal the origins of the star-gas misalignment found in galaxies, but there still is a lack of understanding of the contribution from each f…

astro-ph.GA2020★ 48 cited

The MAGPI Survey -- science goals, design, observing strategy, early results and theoretical framework

C. Foster, J. T. Mendel, C. D. P. Lagos +40

We present an overview of the Middle Ages Galaxy Properties with Integral Field Spectroscopy (MAGPI) survey, a Large Program on ESO/VLT. MAGPI is designed to study the physical dri…

astro-ph.GA2019★ 20 cited

Star-gas misalignment in galaxies: I. The properties of galaxies from the Horizon-AGN simulation and comparisons to SAMI

Donghyeon J. Khim, Sukyoung K. Yi, Yohan Dubois +12

Recent integral field spectroscopy observations have found that about 11% of galaxies show star-gas misalignment. The misalignment possibly results from external effects such as ga…