activity
20212026
most citedThe Complexity of the Cetus Stream Unveiled from the Fusion of STREAMFINDER and StarGO

39 citations · 169 across the 28 of their papers we have counts for

collaborators

29 papers

astro-ph.GA2026

Hidden in the Halo: New Diffuse Star Clusters in the M82 Starburst with JWST

Deepthi S. Prabhu, David J. Sand, Burcin Mutlu-Pakdil +12

Diffuse star clusters (DSCs) occupy a poorly explored region of the size-luminosity plane between classical globular clusters (GCs) and dwarf galaxies. Here we report the discovery…

astro-ph.GA2026

Discovery, Characterization, and Potential Origins of a Stream in the Stellar Halo of Nearby LMC-Mass Galaxy NGC 55

Benjamin N. Velguth, Burçin Mutlu-Pakdil, Erik Tollerud +33

We present a previously undetected stellar stream in the halo of the LMC-mass dwarf galaxy NGC 55 (2 Mpc), as part of an ongoing effort to characterize the stellar halos of LMC/SMC…

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

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

Andromeda XXXVI: discovery of a new ultra-faint dwarf galaxy towards M31

Joanna D. Sakowska, David Martínez-Delgado, Michelle L. M. Collins +4

We present deep imaging of Andromeda XXXVI (And XXXVI), a dwarf galaxy discovered through visual inspection of the Pan-Andromeda Archaeological Survey, using observations obtained…

astro-ph.IM2025

Why the Northern Hemisphere Needs a 30-40 m Telescope and the Science at Stake: A Low Surface Brightness Science Case

Mireia Montes, Ignacio Trujillo, David Martínez Delgado +27

The Extragalactic Low Surface Brightness (LSB, mag/arcsec) Universe represents a crucial, yet largely unseen, frontier in modern astrophysics. This faint realm…

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

Is M31 at the center of its satellite system ?

Amandine Doliva-Dolinsky, N. F. Martin, Michelle L. M. Collins

The arrangement of M31's dwarf galaxies exhibits anisotropy, with the majority located in the hemisphere between the Milky Way and the host galaxy. This study aims to investigate w…

astro-ph.GA2025

Hubble Space Telescope Imaging of Three Isolated Faint Dwarf Galaxies Beyond the Local Group: Pavo, Corvus A, and Kamino

Burçin Mutlu-Pakdil, Michael G. Jones, David J. Sand +14

We present new Hubble Space Telescope (HST) imaging of three recently discovered star-forming dwarf galaxies beyond the Local Group: Pavo, Corvus A, and Kamino. The discovery of Ka…

astro-ph.GA2025★ 2 cited

DELVE Milky Way Satellite Galaxy Census I: Satellite Population and Survey Selection Function in DES, DELVE, and Pan-STARRS

C. Y. Tan, A. Drlica-Wagner, A. B. Pace +84

The properties of Milky Way satellite galaxies have important implications for galaxy formation, reionization, and the fundamental physics of dark matter. However, the population o…

astro-ph.GA2025★ 1 cited

Star formation histories and gas content limits of three ultra-faint dwarfs on the periphery of M31

Michael G. Jones, David J. Sand, Paul Bennet +9

We present Hubble Space Telescope (HST) imaging of Pegasus V and Pisces VII, along with a re-analysis of the archival imaging of Pegasus W, and Jansky Very Large Array (VLA) neutra…

astro-ph.GA2025

Pavo: Stellar feedback in action in a low-mass dwarf galaxy

Michael G. Jones, Martin P. Rey, David J. Sand +13

MeerKAT observations of the recently discovered, extremely low mass galaxy, Pavo, have revealed a neutral gas (HI) reservoir that was undetected in archival HI single dish data. We…

astro-ph.GA2025

The NGC3109 Satellite System: The First Systematic Resolved Search for Dwarf Galaxies Around a SMC-mass Host

Amandine Doliva-Dolinsky, Burçin Mutlu-Pakdil, Denija Crnojević +38

We report the results of the deepest search to date for dwarf galaxies around NGC3109, a barred spiral galaxy with a mass similar to that of the Small Magellanic Cloud (SMC), using…

astro-ph.GA2025★ 4 cited

DELVE-DEEP Survey: The Faint Satellite System of NGC 55

Jonah Medoff, Burçin Mutlu-Pakdil, Jeffrey L. Carlin +24

We report the first comprehensive census of the satellite dwarf galaxies around NGC 55 ( Mpc) as a part of the DECam Local Volume Exploration DEEP (DELVE-DEEP) survey. NGC 55…

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★ 1 cited

The satellite galaxies of the Milky Way and Andromeda

Amandine Doliva-Dolinsky, Michelle L. M. Collins, Nicolas F. Martin

The satellite galaxies of the Local Group provide us with an important probe of galaxy formation, evolution, and cosmology. The two large spirals that dominate this group -- the Mi…

astro-ph.GA2025

Streams, Shells, and Substructures in the Accretion-Built Stellar Halo of NGC 300

Catherine E. Fielder, David J. Sand, Michael G. Jones +27

We present deep optical observations of the stellar halo of NGC 300, an LMC-mass galaxy, acquired with the DEEP sub-component of the DECam Local Volume Exploration survey (DELVE) u…

astro-ph.GA2025

Deep Photometric Observations of Ultra-Faint Milky Way Satellites Centaurus I and Eridanus IV

Quinn O. Casey, Burçin Mutlu-Pakdil, David J. Sand +19

We present deep MagellanMegacam imaging of Centaurus I (Cen I) and Eridanus IV (Eri IV), two recently discovered Milky Way ultra-faint satellites. Our data reach magni…

astro-ph.GA2024★ 12 cited

A census of dwarf galaxy satellites around LMC-mass galaxy NGC 2403

Jeffrey L. Carlin, David J. Sand, Burcin Mutlu-Pakdil +11

We present the first comprehensive census of the satellite population around a Large Magellanic Cloud (LMC) stellar-mass galaxy, as part of the Magellanic Analog Dwarf Companions a…

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

Three Quenched, Faint Dwarf Galaxies in the Direction of NGC 300: New Probes of Reionization and Internal Feedback

D. J. Sand, B. Mutlu-Pakdil, M. G. Jones +18

We report the discovery of three faint and ultra-faint dwarf galaxies -- Sculptor A, Sculptor B and Sculptor C -- in the direction of NGC 300 (D=2.0 Mpc), a Large Magellanic Cloud-…

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

Corvus A: A low-mass, isolated galaxy at 3.5 Mpc

Michael G. Jones, David J. Sand, Burcin Mutlu-Pakdil +9

We report the discovery of Corvus A, a low-mass, gas-rich galaxy at a distance of approximately 3.5 Mpc, identified in DR10 of the Dark Energy Camera Legacy Imaging Survey during t…

astro-ph.GA2024★ 11 cited

The Pristine survey: XXV. The very metal-poor Galaxy: Chemodynamics through the follow-up of the Pristine-Gaia synthetic catalogue

Akshara Viswanathan, Zhen Yuan, Anke Ardern-Arentsen +27

The Pristine-\textit{Gaia} synthetic catalogue provides reliable photometric metallicities for 30 million FGK stars using the Pristine survey model and Gaia XP spectra. We pe…