activity
20202026
most citedReconstructing the Disrupted Dwarf Galaxy -Sausage/Enceladus Using its Stars and Globular Clusters

90 citations · 572 across the 70 of their papers we have counts for

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Showing 2024Show all

14 papers · 1 filter

astro-ph.GA2024★ 5 cited

Black Hole Scaling Relations in the Dwarf-galaxy Regime with -Sausage/Enceladus and Centauri

Guilherme Limberg

The discovery of fast moving stars in the Milky Way's most massive globular cluster, Centauri (Cen), has provided strong evidence for an intermediate-mass black hole (IMBH) i…

astro-ph.GA2024★ 8 cited

Stellar atmospheric parameters and chemical abundances of about 5 million stars from S-PLUS multi-band photometry

C. E. Ferreira Lopes, L. A. Gutiérrez-Soto, V. S. Ferreira Alberice +30

Context. Spectroscopic surveys like APOGEE, GALAH, and LAMOST have significantly advanced our understanding of the Milky Way by providing extensive stellar parameters and chemical…

astro-ph.GA2024★ 11 cited

: New insights from deep spectroscopic observations of the tidal tails of the globular clusters NGC 1261 and NGC 1904

Petra Awad, Ting S. Li, Denis Erkal +22

As globular clusters (GCs) orbit the Milky Way, their stars are tidally stripped forming tidal tails that follow the orbit of the clusters around the Galaxy. The morphology of thes…

astro-ph.GA2024★ 3 cited

Chemical Abundances in the Leiptr Stellar Stream: A Disrupted Ultra-faint Dwarf Galaxy?

Kaia R. Atzberger, Sam A. Usman, Alexander P. Ji +11

Chemical abundances of stellar streams can be used to determine the nature of a stream's progenitor. Here we study the progenitor of the recently discovered Leiptr stellar stream,…

astro-ph.GA2024

Discovery and Spectroscopic Confirmation of Aquarius III: A Low-Mass Milky Way Satellite Galaxy

W. Cerny, A. Chiti, M. Geha +37

We present the discovery of Aquarius III, an ultra-faint Milky Way satellite galaxy identified in the second data release of the DECam Local Volume Exploration (DELVE) survey. Base…

astro-ph.GA2024★ 19 cited

A Pride of Satellites in the Constellation Leo? Discovery of the Leo VI Milky Way Satellite Galaxy with DELVE Early Data Release 3

C. Y. Tan, W. Cerny, A. Drlica-Wagner +32

We report the discovery and spectroscopic confirmation of an ultra-faint Milky Way (MW) satellite in the constellation of Leo. This system was discovered as a spatial overdensity o…

astro-ph.GA2024

The Fourth S-PLUS Data Release: 12-filter photometry covering square degrees in the southern hemisphere

Fabio R. Herpich, Felipe Almeida-Fernandes, Gustavo B. Oliveira Schwarz +68

The Southern Photometric Local Universe Survey (S-PLUS) is a project to map sq deg of the sky using twelve bands (seven narrow and five broadbands). Observations are per…

astro-ph.SR2024★ 10 cited

The S-PLUS Ultra-Short Survey: first data release

Hélio D. Perottoni, Vinicius M. Placco, Felipe Almeida-Fernandes +15

This paper presents the first public data release of the S-PLUS Ultra-Short Survey (USS), a photometric survey with short exposure times, covering approximately 9300 deg of t…

astro-ph.GA2024

The Rise of the -Process in the Gaia-Sausage/Enceladus Dwarf Galaxy

Xiaowei Ou, Alexander P. Ji, Anna Frebel +2

Neutron star mergers (NSMs) produce copious amounts of heavy r-process elements after a time delayed inspiral process. Once NSMs are present in a galaxy, r-process elements, such a…

astro-ph.GA2024

Stellar Metallicities from DECam -band Photometry: A Study of Milky Way Ultra-Faint Dwarf Galaxies

Yue Pan, Anirudh Chiti, Alex Drlica-Wagner +5

We conducted an in-depth analysis of candidate member stars located in the peripheries of three ultra-faint dwarf (UFD) galaxy satellites of the Milky Way: Boötes I (Boo1), Boötes…

astro-ph.GA2024★ 2 cited

Inferring dark matter subhalo properties from simulated subhalo-stream encounters

Tariq Hilmi, Denis Erkal, Sergey E. Koposov +9

In the cold dark matter paradigm, our Galaxy is predicted to contain >10000 dark matter subhaloes in the range which should be completely devoid of stars. Stella…

astro-ph.GA2024★ 1 cited

The Power of High Precision Broadband Photometry: Tracing the Milky Way Density Profile with Blue Horizontal Branch stars in the Dark Energy Survey

Fengqing Yu, Ting S. Li, Joshua S. Speagle +9

Blue Horizontal Branch (BHB) stars, excellent distant tracers for probing the Milky Way's halo density profile, are distinguished in the vs color space from ano…

astro-ph.GA2024★ 22 cited

Enrichment by Extragalactic First Stars in the Large Magellanic Cloud

Anirudh Chiti, Mohammad Mardini, Guilherme Limberg +8

The Large Magellanic Cloud (LMC) is the Milky Way's most massive satellite galaxy, which only recently (~2 billion years ago) fell into our Galaxy. Since stellar atmospheres preser…

astro-ph.GA2024

Multiple Populations and a CH Star Found in the 300S Globular Cluster Stellar Stream

Sam A. Usman, Alexander P. Ji, Ting S. Li +14

Milky Way globular clusters (GCs) display chemical enrichment in a phenomenon called multiple stellar populations (MSPs). While the enrichment mechanism is not fully understood, th…