Galactic Archaeology with Gaia

AJ Deason, V Belokurov - New Astronomy Reviews, 2024 - Elsevier
The Gaia mission has revolutionized our view of the Milky Way and its satellite citizens. The
field of Galactic Archaeology has been piecing together the formation and evolution of the …

Gaia's brightest very metal-poor (VMP) stars-Metallicity catalogue of a thousand VMP stars from Gaia's radial velocity spectrometer spectra

A Viswanathan, E Starkenburg, T Matsuno… - Astronomy & …, 2024 - aanda.org
Context. Gaia DR3 has offered the scientific community a remarkable dataset of
approximately one million spectra acquired with the radial velocity spectrometer (RVS) in the …

Swarming in stellar streams: Unveiling the structure of the Jhelum stream with ant colony-inspired computation

P Awad, M Canducci, E Balbinot… - Astronomy & …, 2024 - aanda.org
The halo of the Milky Way galaxy hosts multiple dynamically coherent substructures known
as stellar streams that are remnants of tidally disrupted orbiting systems such as globular …

Action and energy clustering of stellar streams in deforming Milky Way dark matter haloes

RAN Brooks, JL Sanders, S Lilleengen… - Monthly Notices of …, 2024 - academic.oup.com
We investigate the non-adiabatic effect of time-dependent deformations in the Milky Way
(MW) halo potential on stellar streams. Specifically, we consider the MW's response to the …

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

A Viswanathan, Z Yuan, A Ardern-Arentsen… - arXiv preprint arXiv …, 2024 - arxiv.org
The Pristine-\textit {Gaia} synthetic catalogue provides reliable photometric metallicities for
$\sim $30 million FGK stars using the Pristine survey model and Gaia XP spectra. We …

Filling in the Blanks: A Method to Infer the Substructure Membership and Dynamics of 5D Stars

TM Callingham, A Helmi - arXiv preprint arXiv:2405.10168, 2024 - arxiv.org
We present and test a method to infer a probability density function (PDF) for the missing
vlos of a star with 5D information within $2.5 $ kpc. We use stars from the Gaia DR3 RVS …

The Pristine Survey--XXVII. Journey to the Galactic outskirts--Mapping the outer halo red giant stars down to the very metal-poor end

A Viswanathan, A Byström, E Starkenburg… - arXiv preprint arXiv …, 2024 - arxiv.org
Context: In the context of Galactic archaeology, the outer halo remains relatively unexplored
with respect to its metallicity distribution, merger debris, and the abundance of known …

Skyward AI: Advancing Astronomy with Intelligent Machines

S Bialek - 2023 - dspace.library.uvic.ca
This dissertation represents the work I did in integrating advanced machine learning
techniques into three important challenges that the field of astronomy currently faces. Firstly …

Exploring the chemodynamics of metal-poor stellar populations

AR da Silva, R Smiljanic - Astronomy & Astrophysics, 2023 - aanda.org
Context. Metal-poor stars are key for studying the formation and evolution of the Galaxy.
Evidence of the early mergers that built up the Galaxy remains in the distributions of …

From the Large-Scale Structure to the Milky Way Halo: Machine Learning techniques for structure detection and analysis

P Awad - 2024 - research.rug.nl
The growing significance of structure detection in astronomy, driven by large simulations
and observational surveys necessitates the development of efficient structure mining tools …