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Phosphorus-rich stars with unusual abundances are challenging theoretical predictions
Almost all chemical elements have been made by nucleosynthetic reactions in various kind of stars and have been accumulated along our cosmic history. Among those elements, the origin of phosphorus is of extreme interest because it is known to be essential for life such as we know on Earth. However,...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7403594/ https://www.ncbi.nlm.nih.gov/pubmed/32753582 http://dx.doi.org/10.1038/s41467-020-17649-9 |
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author | Masseron, Thomas García-Hernández, D. A. Santoveña, Raúl Manchado, Arturo Zamora, Olga Manteiga, Minia Dafonte, Carlos |
author_facet | Masseron, Thomas García-Hernández, D. A. Santoveña, Raúl Manchado, Arturo Zamora, Olga Manteiga, Minia Dafonte, Carlos |
author_sort | Masseron, Thomas |
collection | PubMed |
description | Almost all chemical elements have been made by nucleosynthetic reactions in various kind of stars and have been accumulated along our cosmic history. Among those elements, the origin of phosphorus is of extreme interest because it is known to be essential for life such as we know on Earth. However, current models of (Galactic) chemical evolution under-predict the phosphorus we observe in our Solar System. Here we report the discovery of 15 phosphorus-rich stars with unusual overabundances of O, Mg, Si, Al, and Ce. Phosphorus-rich stars likely inherit their peculiar chemistry from another nearby stellar source but their intriguing chemical abundance pattern challenge the present stellar nucleosynthesis theoretical predictions. Specific effects such as rotation or advanced nucleosynthesis in convective-reactive regions in massive stars represent the most promising alternatives to explain the existence of phosphorus-rich stars. The phosphorus-rich stars progenitors may significantly contribute to the phosphorus present on Earth today. |
format | Online Article Text |
id | pubmed-7403594 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-74035942020-08-13 Phosphorus-rich stars with unusual abundances are challenging theoretical predictions Masseron, Thomas García-Hernández, D. A. Santoveña, Raúl Manchado, Arturo Zamora, Olga Manteiga, Minia Dafonte, Carlos Nat Commun Article Almost all chemical elements have been made by nucleosynthetic reactions in various kind of stars and have been accumulated along our cosmic history. Among those elements, the origin of phosphorus is of extreme interest because it is known to be essential for life such as we know on Earth. However, current models of (Galactic) chemical evolution under-predict the phosphorus we observe in our Solar System. Here we report the discovery of 15 phosphorus-rich stars with unusual overabundances of O, Mg, Si, Al, and Ce. Phosphorus-rich stars likely inherit their peculiar chemistry from another nearby stellar source but their intriguing chemical abundance pattern challenge the present stellar nucleosynthesis theoretical predictions. Specific effects such as rotation or advanced nucleosynthesis in convective-reactive regions in massive stars represent the most promising alternatives to explain the existence of phosphorus-rich stars. The phosphorus-rich stars progenitors may significantly contribute to the phosphorus present on Earth today. Nature Publishing Group UK 2020-08-04 /pmc/articles/PMC7403594/ /pubmed/32753582 http://dx.doi.org/10.1038/s41467-020-17649-9 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Masseron, Thomas García-Hernández, D. A. Santoveña, Raúl Manchado, Arturo Zamora, Olga Manteiga, Minia Dafonte, Carlos Phosphorus-rich stars with unusual abundances are challenging theoretical predictions |
title | Phosphorus-rich stars with unusual abundances are challenging theoretical predictions |
title_full | Phosphorus-rich stars with unusual abundances are challenging theoretical predictions |
title_fullStr | Phosphorus-rich stars with unusual abundances are challenging theoretical predictions |
title_full_unstemmed | Phosphorus-rich stars with unusual abundances are challenging theoretical predictions |
title_short | Phosphorus-rich stars with unusual abundances are challenging theoretical predictions |
title_sort | phosphorus-rich stars with unusual abundances are challenging theoretical predictions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7403594/ https://www.ncbi.nlm.nih.gov/pubmed/32753582 http://dx.doi.org/10.1038/s41467-020-17649-9 |
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