VP
Vinicius M. Placco
astro-ph.GAastro-ph.SRastro-ph.IMastro-ph.HEastro-ph.COastro-ph.EPnucl-exnucl-th
On Valency
published · living versionsW_ryfp3y5e·v1 · currentpublished
The Pristine survey XXXI. A stream offset from the Stream: very metal-poor stellar debris trailing 100 from the LMC-SMC system
with Akshara Viswanathan, Kim A. Venn, Julio F. Navarro, Daniel A. Boyea +21
1 version
Preprints & journals
145 papers in the corpus · 2009–2026J-PLUS: Identifying Outlier Spectral Energy Distributions in the Fourth Data Release Using Unsupervised Machine Learning2610.27252v1 · F. Quispe-Huaynasi, F. Roig, V. Loaiza-Tacuri et al.2026 · 0 citationsarXiv
The -Process Alliance: On J0010$-$1735, an Accreted, Chemically Unusual, Metal-poor Star with -process Enhancement2610.14987v1 · Zoe Hackshaw, Rana Ezzeddine, Shivani P. Shah et al.2026 · 0 citationsarXiv
Chemo-dynamical Analysis of a CNO-Enhanced Ultra Metal-poor Star (): Insights into Early Enrichment by Faint Population III Supernova2609.13373v2 · Guilherme Limberg, Vinicius M. Placco, Alexander P. Ji et al.2026 · 0 citationsarXiv
The S-PLUS Fifth Data-Release: Over 4500 square degrees of the Southern Sky and a multicolor view of the Hydra and Antlia galaxy clusters2607.15891v1 · Erik Vinicius Rodrigues de Lima, Gustavo Bernhard Oliveira Schwarz, F'abio Rafael Herpich et al.2026 · 1 citationarXiv
The Carbon-Dependent Binary Frequency of CEMP-no Stars2607.13020v2 · John D. Dixon, Terese T. Hansen, Jennifer Marshall et al.2026 · 0 citationsarXiv
Near-Infrared Observations of BD+44 493 with IGRINS-22607.13201v1 · Vinicius M. Placco, William D. Vacca2026 · 0 citationsarXiv
Deep Imaging of Grus II and Horologium II: Structure and Extent of Two Ultra-Faint Milky Way Satellites2606.25058v1 · Deepthi S. Prabhu, David J. Sand, Anirudh Chiti et al.2026 · 0 citationsarXiv
Variables in S-PLUS: I. Multiband period-luminosity relations and reddening maps of the Magellanic Clouds using classical Cepheids2606.20953v1 · Debasish Hazarika, Carlos E. Ferreira Lopes, M'arcio Catelan et al.2026 · 1 citationarXiv
The DECam MAGIC Survey Mapping the Ancient Galaxy in CaHK: Overview and Summary of Early Science2605.26581v1 · A. Chiti, A. Drlica-Wagner, A. B. Pace et al.2026 · 1 citationarXiv
The \emph{R}-process Alliance: A Bright, Strongly \emph{R}-process-enhanced Extremely Metal-poor Star Observed with GHOST2605.20614v1 · Mohammad K. Mardini, Anna Frebel, Vinicius M. Placco et al.2026 · 0 citationsarXiv
The -Process Alliance: The -Process Enhancement of Stars from Chemodynamically Tagged Groups in the Milky Way Halo2605.11087v1 · Jessica Merritt Agnos, Charli M. Sakari, Pedro Silva et al.2026 · 0 citationsarXiv
The Metallicity Gradient of Sagittarius Dwarf Spheroidal Galaxy Prior to Infall Constrained by S-PLUS Observations of its Tidal Stream2604.16727v1 · Felipe Almeida-Fernandes, Guilherme Limberg, H'elio D. Perottoni et al.2026 · 0 citationsarXiv
The DECam MAGIC Survey: Investigating the Jet Stellar Stream with Photometric Metallicities2604.13374v2 · H. Q. Do, A. Chiti, P. S. Ferguson et al.2026 · 0 citationsarXiv
The -Process Alliance: Actinide Abundances, Variation, and Evolution in Metal-Poor Stars2604.12892v2 · Shivani P. Shah, Rana Ezzeddine, Erika M. Holmbeck et al.2026 · 0 citationsVolume 1009, Issue 2, 2026, 27pp
OJALÁ: Optimizing J-PAS Astronomy for Large-scale Analysis. A foundation model for the SED of galaxies, QSOs and stars2604.00661v1 · G. Mart'inez-Solaeche, R. M. Gonz'alez Delgado, R. Garc'ia-Benito et al.2026 · 0 citationsarXiv
The Actinide-Boost Star LAMOST J122216.85-063345.2: A Detailed R-process Abundance Study with Gemini-S/GHOST2603.29246v1 · Miji Jeong, Young Sun Lee, Vinicius M. Placco et al.2026 · 0 citationsarXiv
Stellar characterization with photometric colors from J-PLUS and 2MASS surveys2603.17083v3 · J. F. Aguilar, P. Cruz, E. Solano et al.2026 · 0 citationsarXiv
Quantifying Element Importance for Mass Recovery from Population III Supernova Yield Fits2603.02440v1 · Zhongyuan Zhang, Alexander P Ji, Vinicius M Placco et al.2026 · 0 citationsAstrophys. J. 1004, 252 (2026)
The primordial nature of the C-19 stellar stream2603.02445v1 · Kim A. Venn, Zhen Yuan, Nicolas F. Martin et al.2026 · 0 citationsarXiv
The DECam MAGIC Survey: Uncovering the Tidal Tails of the Crater II Dwarf Galaxy2602.21283v2 · Kaia R. Atzberger, Andrew B. Pace, Nitya Kallivayalil et al.2026 · 0 citationsarXiv
Carbon-Enhanced Metal-Poor Star Candidates in the Milky Way from J-PLUS and S-PLUS2602.10325v1 · Jihye Hong, Timothy C. Beers, Yang Huang et al.2026 · 1 citationarXiv
HE0144-4657: A Carbon-Enhanced Ultra Metal-Poor Star ([Fe/H] ~ -4.1) from the Helmi Stream Disrupted Dwarf Galaxy2601.15974v2 · Vinicius M. Placco, Guilherme Limberg, Catherine R. Kennedy et al.2026 · 1 citationThe Astrophysical Journal Letters, 2026, Volume 1000, Number 1, L34
J-PAS: A Neural Network Approach to Single Stellar Population Characterization2511.09081v1 · H. Dom'inguez S'anchez, P. Coelho, G. Bruzual et al.2025 · 1 citationA&A 705, A219 (2026)
J-PLUS Reconstructing the Milky Way Disc's star formation history with twelve-filter photometry2511.07596v2 · J. A. Alzate-Trujillo, A. del Pino, C. L'opez-Sanjuan et al.2025 · 0 citationsarXiv
The R-Process Alliance: Exploring the cosmic scatter among ten r-process sites with stellar abundances2510.25500v1 · Mila Racca, Terese T. Hansen, Ian U. Roederer et al.2025 · 6 citationsA&A 704, A282 (2025)
Ultra-Faint Milky Way Satellites Discovered in Carina, Phoenix, and Telescopium with DELVE Data Release 32510.11684v2 · C. Y. Tan, W. Cerny, A. B. Pace et al.2025 · 3 citationsApJ 1000, 46 (2026)
J-VAR: the northern variable sky in 7 filters -- First Data Release2509.00214v1 · A. Ederoclite, H. V'azquez Rami'o, A. Alvarez-Candal et al.2025 · 0 citationsarXiv
Not-so-heavy metal(s): Chemical Abundances in the Ultra-faint Dwarf Galaxies Eridanus IV and Centaurus I2508.11012v1 · Mair'ead E Heiger, Alexander P Ji, Ting S Li et al.2025 · 0 citationsarXiv
A second-generation star in a relic dwarf galaxy2508.04053v2 · Anirudh Chiti, Vinicius M. Placco, Andrew B. Pace et al.2025 · 4 citationsarXiv
Discovery of an Star in XP Spectra2508.00067v1 · Guilherme Limberg, Vinicius M. Placco, Alexander P. Ji et al.2025 · 13 citationsarXiv
Abundances of P, S, and K in 58 bulge spheroid stars from APOGEE2507.11667v1 · B. Barbuy, H. Ernandes, A.C.S. Friaca et al.2025 · 8 citationsarXiv
Spectroscopic Analysis of Pictor II: a very low metallicity ultra-faint dwarf galaxy bound to the Large Magellanic Cloud2506.21841v2 · A. B. Pace, T. S. Li, A. P. Ji et al.2025 · 9 citationsarXiv
The DECam MAGIC Survey: Spectroscopic Follow-up of the Most Metal-Poor Stars in the Distant Milky Way Halo2506.19163v1 · Vinicius M. Placco, Guilherme Limberg, Anirudh Chiti et al.2025 · 13 citationsarXiv
Probing Abundance Variations among Multiple Stellar Populations in the Metal-Poor Globular Cluster NGC 2298 using Gemini-South/GHOST2505.04001v1 · Avrajit Bandyopadhyay, Rana Ezzeddine, Vinicius M. Placco et al.2025 · 4 citationsarXiv
An Unsupervised Machine Learning Approach to Identify Spectral Energy Distribution Outliers: Application to the S-PLUS DR4 data2504.18491v1 · F. Quispe-Huaynasi, F. Roig, N. Holanda et al.2025 · 6 citationsarXiv
The DECam MAGIC Survey: A Wide-field Photometric Metallicity Study of the Sculptor Dwarf Spheroidal Galaxy2504.03593v2 · Fabr'icia O. Barbosa, Anirudh Chiti, Guilherme Limberg et al.2025 · 5 citationsarXiv
Elemental abundances of 44 very metal-poor stars determined from Subaru/IRD near-infrared spectra2503.11487v1 · Wako Aoki, Timothy C. Beers, Satoshi Honda et al.2025 · 3 citationsarXiv
GHOST Reduced Data Products for the Gemini Observatory Community and Beyond2412.13239v1 · Vinicius M. Placco, David Herrera, Brian M. Merino et al.2024 · 4 citationsarXiv
Abundances of iron-peak elements in 58 bulge spheroid stars from APOGEE2410.13751v1 · B. Barbuy, A.C.S. Friaca, H. Ernandes et al.2024 · 7 citationsarXiv
The -Process Alliance: Enrichment of -process Elements in a Simulated Milky Way-like Galaxy2410.11943v2 · Yutaka Hirai, Timothy C. Beers, Young Sun Lee et al.2024 · 5 citationsarXiv
BD+44 493: Chemo-Dynamical Analysis and Constraints on Companion Planetary Masses from WIYN/NEID Spectroscopy2410.08943v1 · Vinicius M. Placco, Arvind F. Gupta, Felipe Almeida-Fernandes et al.2024 · 8 citationsarXiv
Discovery and Spectroscopic Confirmation of Aquarius III: A Low-Mass Milky Way Satellite Galaxy2410.00981v1 · W. Cerny, A. Chiti, M. Geha et al.2024 · 13 citationsarXiv
Gemini High-resolution Optical SpecTrograph (GHOST) at Gemini-South: Instrument performance and integration, first science, and next steps2409.05855v2 · V. M. Kalari, R. J. Diaz, G. Robertson et al.2024 · 20 citationsarXiv
The R-Process Alliance: Fifth Data Release from the Search for R-Process-Enhanced Metal-poor Stars in the Galactic Halo with the GTC2408.03731v3 · Avrajit Bandyopadhyay, Rana Ezzeddine, Carlos Allende Prieto et al.2024 · 26 citationsThe Astrophysical Journal Supplement , 2024, Volume 274, Number 2, Page 39
The Fourth S-PLUS Data Release: 12-filter photometry covering square degrees in the southern hemisphere2407.20701v1 · Fabio R. Herpich, Felipe Almeida-Fernandes, Gustavo B. Oliveira Schwarz et al.2024 · 0 citationsarXiv
High-Resolution Dayside Spectroscopy of WASP-189b: Detection of Iron during the GHOST/Gemini South System Verification Run2407.11281v1 · Emily K. Deibert, Adam B. Langeveld, Mitchell E. Young et al.2024 · 8 citationsarXiv
The S-PLUS Ultra-Short Survey: first data release2407.05004v1 · H'elio D. Perottoni, Vinicius M. Placco, Felipe Almeida-Fernandes et al.2024 · 11 citationsA&A 691, A138 (2024)
The R-Process Alliance: 2MASS J22132050-5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.452406.02691v1 · Ian U. Roederer, Timothy C. Beers, Kohei Hattori et al.2024 · 22 citationsarXiv
The R-Process Alliance: Analysis of Limited-r Stars2404.03379v1 · T. Xylakis-Dornbusch, T. T. Hansen, T. C. Beers et al.2024 · 10 citationsarXiv
The -Process Alliance: Detailed Composition of an -Process Enhanced Star with UV and Optical Spectroscopy2401.12311v1 · Shivani P. Shah, Rana Ezzeddine, Ian U. Roederer et al.2024 · 0 citationsarXiv
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