Streams, substructures, and the early history of the Milky Way

A Helmi - Annual Review of Astronomy and Astrophysics, 2020 - annualreviews.org
The advent of the second data release of the Gaia mission, in combination with data from
large spectroscopic surveys, is revolutionizing our understanding of the Galaxy. Thanks to …

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 …

The global dynamical atlas of the milky way mergers: Constraints from Gaia EDR3–based orbits of globular clusters, stellar streams, and satellite galaxies

K Malhan, RA Ibata, S Sharma, B Famaey… - The Astrophysical …, 2022 - iopscience.iop.org
Abstract The Milky Way halo was predominantly formed by the merging of numerous
progenitor galaxies. However, our knowledge of this process is still incomplete, especially in …

Evidence from the h3 survey that the stellar halo is entirely comprised of substructure

RP Naidu, C Conroy, A Bonaca… - The Astrophysical …, 2020 - iopscience.iop.org
In the ΛCDM paradigm, the Galactic stellar halo is predicted to harbor the accreted debris of
smaller systems. To identify these systems, the H3 Spectroscopic Survey, combined with …

The milky way total mass profile as inferred from Gaia DR2

M Cautun, A Benitez-Llambay… - Monthly Notices of …, 2020 - academic.oup.com
ABSTRACT We determine the Milky Way (MW) mass profile inferred from fitting physically
motivated models to the Gaia DR2 Galactic rotation curve and other data. Using various …

The biggest splash

V Belokurov, JL Sanders, A Fattahi… - Monthly Notices of …, 2020 - academic.oup.com
Using a large sample of bright nearby stars with accurate Gaia Data Release 2 astrometry
and auxiliary spectroscopy we map out the properties of the principle Galactic components …

Reconstructing the last major merger of the Milky Way with the H3 survey

RP Naidu, C Conroy, A Bonaca, D Zaritsky… - The Astrophysical …, 2021 - iopscience.iop.org
Several lines of evidence suggest that the Milky Way underwent a major merger at z∼ 2 with
the Gaia-Sausage-Enceladus (GSE) galaxy. Here we use H3 Survey data to argue that GSE …

Kraken reveals itself–the merger history of the Milky Way reconstructed with the E-MOSAICS simulations

JMD Kruijssen, JL Pfeffer, M Chevance… - Monthly Notices of …, 2020 - academic.oup.com
Globular clusters (GCs) formed when the Milky Way experienced a phase of rapid assembly.
We use the wealth of information contained in the Galactic GC population to quantify the …

Milky Way's Eccentric Constituents with Gaia, APOGEE, and GALAH

GC Myeong, V Belokurov, DS Aguado… - The Astrophysical …, 2022 - iopscience.iop.org
We report the results of an unsupervised decomposition of the local stellar halo in the
chemodynamical space spanned by the abundance measurements from APOGEE DR17 …

Nitrogen enrichment and clustered star formation at the dawn of the Galaxy

V Belokurov, A Kravtsov - Monthly Notices of the Royal …, 2023 - academic.oup.com
Anomalously high nitrogen-to-oxygen abundance ratios [N/O] are observed in globular
clusters (GCs), among the field stars of the Milky Way (MW), and even in the gas in az≈ 11 …