Author
Listed:
- Thomas Masseron
(Instituto de Astrofísica de Canarias
Universidad de La Laguna)
- D. A. García-Hernández
(Instituto de Astrofísica de Canarias
Universidad de La Laguna)
- Raúl Santoveña
(CITIC, Centre for Information and Communications Technology Research, Universidade da Coruña, Campus de Elviña sn
University of A Coruna)
- Arturo Manchado
(Instituto de Astrofísica de Canarias
Universidad de La Laguna
Consejo Superior de Investigaciones Científicas)
- Olga Zamora
(Instituto de Astrofísica de Canarias
Universidad de La Laguna)
- Minia Manteiga
(CITIC, Centre for Information and Communications Technology Research, Universidade da Coruña, Campus de Elviña sn
Universidade da Coruña (UDC))
- Carlos Dafonte
(CITIC, Centre for Information and Communications Technology Research, Universidade da Coruña, Campus de Elviña sn
University of A Coruna)
Abstract
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.
Suggested Citation
Thomas Masseron & D. A. García-Hernández & Raúl Santoveña & Arturo Manchado & Olga Zamora & Minia Manteiga & Carlos Dafonte, 2020.
"Phosphorus-rich stars with unusual abundances are challenging theoretical predictions,"
Nature Communications, Nature, vol. 11(1), pages 1-11, December.
Handle:
RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17649-9
DOI: 10.1038/s41467-020-17649-9
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