EDGE: The direct link between mass growth history and the extended stellar haloes of the faintest dwarf galaxies

A Goater, JI Read, NED Noël… - Monthly Notices of …, 2024 - academic.oup.com
Ultra-faint dwarf galaxies (UFDs) are commonly found in close proximity to the Milky Way
and other massive spiral galaxies. As such, their projected stellar ellipticity and extended …

The proto-galaxy of Milky Way-mass haloes in the FIRE simulations

D Horta, EC Cunningham, R Sanderson… - Monthly Notices of …, 2024 - academic.oup.com
Observational studies are finding stars believed to be relics of the earliest stages of
hierarchical mass assembly of the Milky Way (ie proto-galaxy). In this work, we contextualize …

Modelling the orbital histories of satellites of Milky Way-mass galaxies: testing static host potentials against cosmological simulations

IB Santistevan, A Wetzel, E Tollerud… - Monthly Notices of …, 2024 - academic.oup.com
Understanding the evolution of satellite galaxies of the Milky Way (MW) and M31 requires
modelling their orbital histories across cosmic time. Many works that model satellite orbits …

Via Machinae 2.0: Full-sky, model-agnostic search for stellar streams in Gaia DR2

D Shih, MR Buckley, L Necib - Monthly Notices of the Royal …, 2024 - academic.oup.com
We present an update to Via Machinae, an automated stellar stream-finding algorithm based
on the deep learning anomaly detector ANODE. Via Machinae identifies stellar streams …

Signatures of Tidal Disruption of the Hercules Ultrafaint Dwarf Galaxy

X Ou, A Chiti, N Shipp, JD Simon, M Geha… - The Astrophysical …, 2024 - iopscience.iop.org
The Hercules ultrafaint dwarf galaxy (UFD) has long been hypothesized to be tidally
disrupting, yet no conclusive evidence has been found for tidal disruption owing partly to …

Synthetic Gaia DR3 Surveys from the FIRE Cosmological Simulations of Milky Way-mass Galaxies

T Nguyen, X Ou, N Panithanpaisal… - The Astrophysical …, 2024 - iopscience.iop.org
The third data release (DR3) of Gaia has provided a fivefold increase in the number of radial
velocity measurements of stars, as well as a stark improvement in parallax and proper …

Devouring the Centaurus A Satellites: Modeling Dwarf Galaxies with Galacticus

S Weerasooriya, MS Bovill, MA Taylor… - The Astrophysical …, 2024 - iopscience.iop.org
For the first time, systematic studies of dwarf galaxies are being conducted throughout the
Local Volume, including the dwarf satellites of the nearby giant elliptical galaxy Centaurus A …

Applying machine learning to Galactic Archaeology: how well can we recover the origin of stars in Milky Way-like galaxies?

A Sante, AS Font, S Ortega-Martorell… - Monthly Notices of …, 2024 - academic.oup.com
We present several machine learning (ML) models developed to efficiently separate stars
formed in-situ in Milky Way-type galaxies from those that were formed externally and later …

[HTML][HTML] AuriDESI: mock catalogues for the DESI Milky Way Survey

N Kizhuprakkat, AP Cooper, AH Riley… - Monthly Notices of …, 2024 - academic.oup.com
ABSTRACT The Dark Energy Spectroscopic Instrument Milky Way Survey (DESI MWS) will
explore the assembly history of the Milky Way by characterizing remnants of ancient dwarf …

The Milky Way tomography with Subaru Hyper Suprime-Cam. I. Halo substructures

Y Suzuki, M Chiba, Y Komiyama… - Publications of the …, 2024 - academic.oup.com
We analyze the photometric data in the Wide layer of the Hyper Suprime-Cam Subaru
Strategic Program (HSC-SSP) over∼ 1200 deg2 to uncover new halo substructures beyond …