SMSS J022423.27$-$573705.1: An Extremely Metal-Poor Star with the Most Pronounced Weak $r$-Process Signature

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	Okada, Hiroko, Aoki, Wako, Tominaga, Nozomu, Honda, Satoshi
Format:	Preprint
Published:	2025
Subjects:	Solar and Stellar Astrophysics
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Similar Items

Detailed Chemical Abundance Analysis of Metal-Poor Turn-Off Stars: One with [Fe/H] < -4 and Three with [Fe/H] < -3
by: Suda, Takuma, et al.
Published: (2025)

Observations of Extremely Metal-Poor O Stars: Weak Winds and Constraints for Evolution Models
by: Telford, O. Grace, et al.
Published: (2024)

An Actinide-boost Star Discovered in the Gaia-Sausage-Enceladus
by: Lin, Yangming, et al.
Published: (2025)

A New Subclass of Carbon-Enhanced Metal-Poor Stars at Extremely Low Metallicity
by: Lee, Young Sun, et al.
Published: (2025)

Echoes of the First Stars: Massive Star Evolution in Extremely Metal-Poor Environments with the Habitable Worlds Observatory
by: Senchyna, Peter, et al.
Published: (2025)

The DECam MAGIC Survey: Spectroscopic Follow-up of the Most Metal-Poor Stars in the Distant Milky Way Halo
by: Placco, Vinicius M., et al.
Published: (2025)

Detection of the actinide Th in an r-process-enhanced star with accretion origin
by: Qianfan, Xing, et al.
Published: (2024)

A Systematic NLTE Study of Very Metal-Poor Stars with Metallicity Down to $-4.3$ dex. II. Lithium Abundance and New Insight to the Lithium Plateau
by: Yan, Hong-Liang, et al.
Published: (2026)

Origin of $α$-Poor Very Metal-Poor Stars
by: Jeena, S. K., et al.
Published: (2024)

New Stellar Parameters, Metallicities, and Elemental Abundance Ratios for 311 Metal-Poor Stars
by: Mittal, Sanil, et al.
Published: (2025)

Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. III. Dynamically Tagged Groups and Chemodynamical Properties
by: Zhang, Ruizhi, et al.
Published: (2024)

Detailed Abundance Determination of Metal-Poor Stars with X-Shooter I. Unusual Chemistry in Halo Stars
by: Lowe, Benjamin D. C., et al.
Published: (2025)

Stellar parameters, extinction, and distances for stars in SMSS DR2 by SPar method
by: Sun, Mingxu, et al.
Published: (2025)

The $R$-Process Alliance: Actinide Abundances, Variation, and Evolution in Metal-Poor Stars
by: Shah, Shivani P., et al.
Published: (2026)

On the Chemical Composition of the Evolved Very Bright Metal-Poor Star HD 1936
by: Çalışkan, Şeyma, et al.
Published: (2024)

A New LISA-Detectable Type Ia Supernova Progenitor in the Southern Sky: SMSS J1138-5139
by: Kosakowski, Alekzander, et al.
Published: (2024)

Discovery of A New Blue Large-Amplitude Pulsator in the SkyMapper DR2: SMSS J184506.82-300804.7
by: Chang, Seo-Won, et al.
Published: (2023)

Th/Eu abundance ratio of red giants in the Kepler Field
by: Azhari, Ainun, et al.
Published: (2025)

Discovery of a Metal-Poor Red Giant Star with the Highest Ultra-Lithium Enhancement
by: Kowkabany, Jeremy, et al.
Published: (2022)

The Effect of Different Methods for Accounting for $α$-enhancement on the Asteroseismic Modeling of Metal-Poor Stars
by: Lindsay, Christopher J., et al.
Published: (2026)

An Ancient Brown Dwarf Transiting a Metal-Poor Thick Disk Star
by: Redai, Jéa Adams, et al.
Published: (2025)

Stellar Models are Reliable at Low Metallicity: An Asteroseismic Age for the Ancient Very Metal-Poor Star KIC 8144907
by: Huber, Daniel, et al.
Published: (2024)

Discovery of an Extremely r-process-enhanced Thin-disk Star with [Eu/H] = +0.78
by: Xie, Xiao-Jin, et al.
Published: (2024)

A Spectroscopic Survey of Metal-Poor OB Stars in Local Dwarf Galaxy NGC 3109
by: Mintz, Abby, et al.
Published: (2025)

TOI-7169 b: A Hot Jupiter Transiting a Metal-Poor Star
by: Simon, Joshua D., et al.
Published: (2026)

A Catalog of 1,408 Carbon-Enhanced Metal-Poor Stars from LAMOST DR11
by: Liu, Xianqi, et al.
Published: (2026)

The Abundance Origin Of A Highly r-process-Enhanced r-II Star: LAMOST J020623.21+494127.9
by: Ashraf, Muhammad Zeshan, et al.
Published: (2025)

Stellar Ancestry Unlocked: Chemical and Orbital Clues Link Metal Poor Stars to Globular Clusters and the Galaxy's Thick Disk
by: Yolalan, Gizay, et al.
Published: (2025)

Spectroscopic and Dynamic Orbital Analyses of Metal-Poor and High Proper Motion Stars: I. HD\,8724 and HD\,195633
by: Marismak, M., et al.
Published: (2024)

On the Origin of Neutron-capture Elements in r-I and r-II Stars: A Differential-abundance Analysis
by: Saraf, Pallavi, et al.
Published: (2025)

Recent Advances in Understanding R-Process Nucleosynthesis in Metal-Poor Stars and Stellar Systems
by: Bandyopadhyay, Avrajit, et al.
Published: (2025)

Abundance Pattern Fitting with Bayesian Inference: Constraining First Stars' Properties and Their Explosion Mechanism with Extremely Metal-poor Stars
by: Jiang, Ruizheng, et al.
Published: (2025)

Elemental abundances of 44 very metal-poor stars determined from Subaru/IRD near-infrared spectra
by: Aoki, Wako, et al.
Published: (2025)

Bridging the gap: consistent modeling of protoplanetary disk heating and gap formation by planet-induced spiral shocks
by: Okuzumi, Satoshi, et al.
Published: (2025)

Hydrodynamical simulations of the vertical shear instability with dynamic dust and cooling rates in protoplanetary disks
by: Fukuhara, Yuya, et al.
Published: (2025)

Signatures of Star-planet Interactions
by: Shkolnik, Evgenya L., et al.
Published: (2017)

Stellar Parameters for over Fifty Million stars from SMSS DR4 and Gaia DR3
by: Huang, Yang, et al.
Published: (2025)

Asteroseismology of Metal-Poor Red Giants Observed by TESS
by: Marasco, Corin, et al.
Published: (2025)

Discovery of SiC and Iron Dust Around AGB Stars in the very Metal-Poor Sextans A Dwarf Galaxy with JWST: Implications for Dust Production at High Redshift
by: Boyer, M. L., et al.
Published: (2025)

Most Rotational Variables Dominated by a Single Bright Feature are $α^2$ CVn Stars
by: Heinze, A. N., et al.
Published: (2023)