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| Format: | Preprint |
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2026
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| Online-Zugang: | https://arxiv.org/abs/2603.29242 |
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| _version_ | 1866911556499931136 |
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| author | Zhang, Chuhan Krumholz, Mark R. Ness, Melissa K. Ting, Yuan-sen Li, Zefeng Hu, Zipeng |
| author_facet | Zhang, Chuhan Krumholz, Mark R. Ness, Melissa K. Ting, Yuan-sen Li, Zefeng Hu, Zipeng |
| contents | We present the Ripples of Stellar Enrichment (RoSE) simulations, which follow a Milky Way-like isolated disc galaxy with star-by-star feedback and nucleosynthesis from all significant channels -- Wolf-Rayet stars, type II supernovae, type Ia supernovae, asymptotic giant branch stars, and neutron star mergers. We use these simulations to test how elements' diverse nucleosynthetic origins imprint spatial, temporal, and inter-element abundance correlations in gas and stars. We find that nucleosynthetic source composition is the primary organising principle of elemental structure: elements sharing a dominant production channel exhibit similar spatial statistics and temporal statistics and their abundances are strongly correlated with one another, while mixed-source pairs are much more weakly correlated. We show that a simple linear regression model based only on how element pairs differ in their nucleosynthetic origin is able to predict, with high fidelity, how strongly their abundances correlate, in both interstellar medium gas and coeval stars. Comparison with Milky Way stellar abundance data shows encouraging qualitative agreement, with differences between simulations and observations comparable to the scatter between independent observational datasets. These results provide first-principles that support for a source-driven framework of galactic chemical structure and connect analytic theory, simulations, and stellar abundance observations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_29242 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Ripples of Stellar Enrichment (RoSE) -- simulating element production and mixing in the Milky Way star-by-star Zhang, Chuhan Krumholz, Mark R. Ness, Melissa K. Ting, Yuan-sen Li, Zefeng Hu, Zipeng Astrophysics of Galaxies We present the Ripples of Stellar Enrichment (RoSE) simulations, which follow a Milky Way-like isolated disc galaxy with star-by-star feedback and nucleosynthesis from all significant channels -- Wolf-Rayet stars, type II supernovae, type Ia supernovae, asymptotic giant branch stars, and neutron star mergers. We use these simulations to test how elements' diverse nucleosynthetic origins imprint spatial, temporal, and inter-element abundance correlations in gas and stars. We find that nucleosynthetic source composition is the primary organising principle of elemental structure: elements sharing a dominant production channel exhibit similar spatial statistics and temporal statistics and their abundances are strongly correlated with one another, while mixed-source pairs are much more weakly correlated. We show that a simple linear regression model based only on how element pairs differ in their nucleosynthetic origin is able to predict, with high fidelity, how strongly their abundances correlate, in both interstellar medium gas and coeval stars. Comparison with Milky Way stellar abundance data shows encouraging qualitative agreement, with differences between simulations and observations comparable to the scatter between independent observational datasets. These results provide first-principles that support for a source-driven framework of galactic chemical structure and connect analytic theory, simulations, and stellar abundance observations. |
| title | Ripples of Stellar Enrichment (RoSE) -- simulating element production and mixing in the Milky Way star-by-star |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2603.29242 |