activity
20062026
most citedExploring Halo Substructure with Giant Stars XI: The Tidal Tails of the Carina Dwarf Spheroidal and the Discovery of Magellanic Cloud Stars in the Carina Foreground

187 citations · 2.4k across the 79 of their papers we have counts for

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Showing 2025Show all

11 papers · 1 filter

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★ 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 DECam MAGIC Survey: Spectroscopic Follow-up of the Most Metal-Poor Stars in the Distant Milky Way Halo

Vinicius M. Placco, Guilherme Limberg, Anirudh Chiti +21

In this work, we present high-resolution spectroscopic observations for six metal-poor stars with [Fe/H]<-3 (including one with [Fe/H]<-4), selected using narrow-band Ca II HK phot…

astro-ph.GA2025★ 9 cited

Spectroscopic Analysis of Pictor II: a very low metallicity ultra-faint dwarf galaxy bound to the Large Magellanic Cloud

A. B. Pace, T. S. Li, A. P. Ji +30

We present Magellan/IMACS and Magellan/MIKE spectroscopy of the ultra-faint dwarf (UFD) galaxy Pictor~II (Pic~II) that is located only 12 kpc from the Large Magellanic Cloud (LMC).…

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

X-ray Constraints on Wandering Black Holes in Stripped Galaxy Nuclei in the Halo of NGC 5128

S. L. Feyan, R. Urquhart, J. Strader +6

A subset of galaxies have dense nuclei, and when these galaxies are accreted and tidally stripped, the nuclei can masquerade as globular clusters in the halos of large galaxies. If…

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

The DECam MAGIC Survey: A Wide-field Photometric Metallicity Study of the Sculptor Dwarf Spheroidal Galaxy

Fabrícia O. Barbosa, Anirudh Chiti, Guilherme Limberg +26

The metallicity distribution function and internal chemical variations of a galaxy are fundamental to understand its formation and assembly history. In this work, we analyze photom…

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…