The stellar halo of the Galaxy is tilted and doubly broken

JJ Han, C Conroy, BD Johnson… - The Astronomical …, 2022 - iopscience.iop.org
Modern Galactic surveys have revealed an ancient merger that dominates the stellar halo of
our galaxy (Gaia–Sausage–Enceladus, GSE). Using chemical abundances and kinematics …

Gastro Library. I. The Simulated Chemodynamical Properties of Several Gaia–Sausage–Enceladus-like Stellar Halos

JAS Amarante, VP Debattista, LBE Silva… - The Astrophysical …, 2022 - iopscience.iop.org
Abstract The Milky Way (MW) stellar halo contains relics of ancient mergers that tell the story
of our galaxy's formation. Some of them are identified due to their similarity in energy …

A tilt in the dark matter halo of the galaxy

JJ Han, RP Naidu, C Conroy, A Bonaca… - The Astrophysical …, 2022 - iopscience.iop.org
Recent observations of the stellar halo have uncovered the debris of an ancient merger,
Gaia–Sausage–Enceladus (GSE), estimated to have occurred≳ 8 Gyr ago. Follow-up …

Peeking beneath the precision floor− II. Probing the chemo-dynamical histories of the potential globular cluster siblings, NGC 288 and NGC 362

S Monty, D Yong, D Massari… - Monthly Notices of …, 2023 - academic.oup.com
The assembly history of the Milky Way (MW) is a rapidly evolving subject, with numerous
small accretion events and at least one major merger proposed in the MW's history. Accreted …

On the existence of a very metal-poor disc in the Milky Way

H Zhang, A Ardern-Arentsen… - Monthly Notices of the …, 2024 - academic.oup.com
The question of whether the Milky Way's disc extends to low metallicity has been the subject
of debate for many years. We aim to address the question by employing a large sample of …

A unified exploration of the chronology of the Galaxy

A Stokholm, V Aguirre Børsen-Koch… - Monthly Notices of …, 2023 - academic.oup.com
ABSTRACT The Milky Way has distinct structural stellar components linked to its formation
and subsequent evolution, but disentangling them is non-trivial. With the recent availability …

The Metal-weak Milky Way Stellar Disk Hidden in the Gaia–Sausage–Enceladus Debris: The APOGEE DR17 View

S Feltzing, D Feuillet - The Astrophysical Journal, 2023 - iopscience.iop.org
We have for the first time identified the early stellar disk in the Milky Way by using a
combination of elemental abundances and kinematics. Using data from APOGEE DR17 and …

The accreted galaxy: An overview of TESS metal-poor accreted star candidates

D de Brito Silva, P Jofré, C Worley, K Hawkins… - Astronomy & …, 2024 - aanda.org
The Milky Way is a mosaic of stars from different origins. In particular, metal-poor accreted
star candidates offer a unique opportunity to better understand the accretion history of the …

Chronology of the chemical enrichment of the old Galactic stellar populations

RE Giribaldi, R Smiljanic - Astronomy & Astrophysics, 2023 - aanda.org
Context. Over its history, the Milky Way has accreted several smaller satellite galaxies.
These mergers added stars and gas to the Galaxy and affected the properties of the pre …

The stellar halo in Local Group Hestia simulations-II. The accreted component

S Khoperskov, I Minchev, N Libeskind… - Astronomy & …, 2023 - aanda.org
Recent progress in understanding the assembly history of the Milky Way (MW) is driven by
the tremendous amount of high-quality data delivered by Gaia (ESA), revealing a number of …