activity
20212026
most citedExtending the Chemical Reach of the H3 Survey: Detailed Abundances of the Dwarf-galaxy Stellar Stream Wukong/LMS-1

19 citations · 30 across the 6 of their papers we have counts for

collaborators

9 papers

astro-ph.GA2026

: Effects of a Central Black Hole in GSE-like Dwarf-galaxy Mergers Around Milky Way-like Hosts

Pedro Naethe Motta, João A. S. Amarante, Guilherme Limberg +6

Recent evidence points to an intermediate-mass black hole (IMBH) in the most massive globular cluster of the Milky Way, Centauri. This globular cluster is commonly associated w…

astro-ph.GA2026

Evidence for the Typhon Stellar Stream as the Remnant of a Recently-disrupted Dwarf Galaxy

João V. Nogueira-Santos, Guilherme Limberg, Silvia Rossi +4

In the hierarchical model of galaxy formation, the Milky Way's stellar halo assembles through the successive accretion of dwarf galaxies. While many resulting substructures have be…

astro-ph.GA2026

The Low- Splash Population in the Milky Way

Lais Borbolato, João A. S. Amarante, Hélio D. Perottoni +5

The Milky Way in-situ halo, also known as the Splash, consists of old (age 10 Gyr), metal-rich ([Fe/H] ), high- stars, i.e., thick disk-like chemistry, on halo-like…

astro-ph.GA2026

Characterizing the velocity anisotropy of the Milky Way's stellar halo

F. O. Barbosa, A. Pérez-Villegas, S. Rossi +6

Modeling the Milky Way stellar halo requires well-determined density and velocity anisotropy profiles. However, it has been challenging to gather a large sample of stars with six-d…

astro-ph.GA2025★ 1 cited

GASTRO library II: Exploring Chemical Bimodalities in Disk Galaxies with GSE-like Mergers and Massive Star-forming Clumps

João A. S. Amarante, Chervin F. P. Laporte, Victor P. Debattista +10

We use several smoothed particle hydrodynamics+N-body models as part of the GASTRO library to study the role of high-density star-forming clumpy regions and a single merger on the…

astro-ph.GA2025

Early Co-formation of the Milky Way's Thin and Thick Disks at Redshift z > 2

Lais Borbolato, Silvia Rossi, Hélio D. Perottoni +8

The Milky Way serves as a template for understanding the formation and evolution of late-type massive disk galaxies since we can obtain detailed chemical and kinematic information…

astro-ph.GA2023

All-sky Kinematics and Chemistry of Monoceros Stellar Overdensity

Lais Borbolato, Hélio D. Perottoni, Silvia Rossi +7

We explore the kinematic and chemical properties of Monoceros stellar overdensity by combining data from 2MASS, WISE, APOGEE, and . Monoceros is a structure located to…

astro-ph.GA2023★ 19 cited

Extending the Chemical Reach of the H3 Survey: Detailed Abundances of the Dwarf-galaxy Stellar Stream Wukong/LMS-1

Guilherme Limberg, Alexander P. Ji, Rohan P. Naidu +10

We present the first detailed chemical-abundance analysis of stars from the dwarf-galaxy stellar stream Wukong/LMS-1 covering a wide metallicity range ($-3.5 < \rm[Fe/H] \lesssim -…

astro-ph.EP2021★ 10 cited

Searching for Extragalactic Exoplanetary Systems: the Curious Case of BD+20 2457

Hélio D. Perottoni, João A. S. Amarante, Guilherme Limberg +4

Planets and their host stars carry a long-term memory of their origin in their chemical compositions. Thus, identifying planets formed in different environments improves our unders…