From the s-Process to the i-Process: A New Perspective on the Chemical Enrichment of Extrinsic Stars

Separating stars enriched in the s- and r-processes of nucleosynthesis is usually achieved by analyzing the element ratios of s-process elements (like Ba or La) to r-process elements (like Eu). The situation becomes more complex when analyzing CEMP-rs stars, which are carbon-enriched metal-poor objects enriched in a mixture of s- and r-elements. These objects, possibly resulting from the i-process of nucleosynthesis, are notoriously difficult to classify based on elemental ratios. Recent theoretical studies have outlined, however, that the s-, i-, and r-processes produce distinct isotopic mixtures. Here, we propose to analyze a sample of stars known to be enriched in s, r, or r + s elements and to determine the odd-to-even isotopic ratio measured on atomic lines of barium, in order to validate or disprove their assignation.

Authors

Institutions

Publication Details

Journal
Galaxies
Published
2024-12-23
DOI
https://doi.org/10.3390/galaxies12060089
Citations
3
Primary Topic
Stellar, planetary, and galactic studies
Type
article
Field-Weighted Citation Impact
0.99

Funders

Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

From the s-Process to the i-Process: A New Perspective on the Chemical Enrichment of Extrinsic Stars

M. Bergemann, Drisya Karinkuzhi, Jeffrey M. Gerber, T. Merle et al.
3 citations
Galaxies
Stellar, planetary, and galactic studies
0.99
article

From the s-Process to the i-Process: A New Perspective on the Chemical Enrichment of Extrinsic Stars

M. Bergemann, Drisya Karinkuzhi, Jeffrey M. Gerber, T. Merle, A. Jorissen, S. Goriely, R. E. Giribaldi, S. Van Eck, L. Siess, Nicholas Storm, A. Choplin, Adrian Lambotte
article en
3 citations

Abstract

Separating stars enriched in the s- and r-processes of nucleosynthesis is usually achieved by analyzing the element ratios of s-process elements (like Ba or La) to r-process elements (like Eu). The situation becomes more complex when analyzing CEMP-rs stars, which are carbon-enriched metal-poor objects enriched in a mixture of s- and r-elements. These objects, possibly resulting from the i-process of nucleosynthesis, are notoriously difficult to classify based on elemental ratios. Recent theoretical studies have outlined, however, that the s-, i-, and r-processes produce distinct isotopic mixtures. Here, we propose to analyze a sample of stars known to be enriched in s, r, or r + s elements and to determine the odd-to-even isotopic ratio measured on atomic lines of barium, in order to validate or disprove their assignation.

GalaxiesVol. 12(6)
University of Calicut (IN), Université Libre de Bruxelles (BE), Purdue University West Lafayette (US), Royal Observatory of Belgium (BE), Max Planck Institute for Astronomy (DE)
Fonds De La Recherche Scientifique - FNRS
Openalex Percentile: Top 22%
Stellar, planetary, and galactic studies
0.99
DOIOpen Access PDFOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.

From the s-Process to the i-Process: A New Perspective on the Chemical Enrichment of Extrinsic Stars — M. Bergemann, Drisya Karinkuzhi, et al. · Galaxies (2024) | TGRS Research Map | TGRS