Evolution of the Convective Core Mass during the Main Sequence
We construct a semianalytical model that describes the convective core mass evolution of massive stars experiencing mass loss during the main-sequence stage. We first conduct a suite of 1D stellar evolution calculations to build insight into how convective core masses behave under idealized mass los...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/adc5fa |
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| author | Minori Shikauchi Ryosuke Hirai Ilya Mandel |
| author_facet | Minori Shikauchi Ryosuke Hirai Ilya Mandel |
| author_sort | Minori Shikauchi |
| collection | DOAJ |
| description | We construct a semianalytical model that describes the convective core mass evolution of massive stars experiencing mass loss during the main-sequence stage. We first conduct a suite of 1D stellar evolution calculations to build insight into how convective core masses behave under idealized mass loss. Based on these simulations, we find several universal relations between global properties of the star that hold regardless of the mass loss history. By combining these relations, we construct a semianalytic framework that can predict the convective core mass evolution for arbitrary mass-loss histories, and hence the helium core mass at the end of the main sequence. Our formulae improve upon existing methods for predicting the core mass in rapid population synthesis codes. |
| format | Article |
| id | doaj-art-78110b97bb6549269ae698c723efccb4 |
| institution | OA Journals |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-78110b97bb6549269ae698c723efccb42025-08-20T02:27:10ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01984214910.3847/1538-4357/adc5faEvolution of the Convective Core Mass during the Main SequenceMinori Shikauchi0https://orcid.org/0000-0002-3561-8658Ryosuke Hirai1https://orcid.org/0000-0002-8032-8174Ilya Mandel2https://orcid.org/0000-0002-6134-8946K4 Digital , 13th Floor, Kanden Building, 3-6-16 Nakanoshima, Kita-ku, Osaka 530-0005, Japan ; minori.shikauchi1020@gmail.comAstrophysical Big Bang Laboratory (ABBL) , Cluster for Pioneering Research, RIKEN, Wako, Saitama 351-0198, Japan; School of Physics and Astronomy , Monash University, Clayton, VIC3800, Australia; OzGrav: The ARC Centre of Excellence for Gravitational Wave Discovery , Clayton, VIC3800, AustraliaSchool of Physics and Astronomy , Monash University, Clayton, VIC3800, Australia; OzGrav: The ARC Centre of Excellence for Gravitational Wave Discovery , Clayton, VIC3800, AustraliaWe construct a semianalytical model that describes the convective core mass evolution of massive stars experiencing mass loss during the main-sequence stage. We first conduct a suite of 1D stellar evolution calculations to build insight into how convective core masses behave under idealized mass loss. Based on these simulations, we find several universal relations between global properties of the star that hold regardless of the mass loss history. By combining these relations, we construct a semianalytic framework that can predict the convective core mass evolution for arbitrary mass-loss histories, and hence the helium core mass at the end of the main sequence. Our formulae improve upon existing methods for predicting the core mass in rapid population synthesis codes.https://doi.org/10.3847/1538-4357/adc5faStellar evolutionBinary starsMassive stars |
| spellingShingle | Minori Shikauchi Ryosuke Hirai Ilya Mandel Evolution of the Convective Core Mass during the Main Sequence The Astrophysical Journal Stellar evolution Binary stars Massive stars |
| title | Evolution of the Convective Core Mass during the Main Sequence |
| title_full | Evolution of the Convective Core Mass during the Main Sequence |
| title_fullStr | Evolution of the Convective Core Mass during the Main Sequence |
| title_full_unstemmed | Evolution of the Convective Core Mass during the Main Sequence |
| title_short | Evolution of the Convective Core Mass during the Main Sequence |
| title_sort | evolution of the convective core mass during the main sequence |
| topic | Stellar evolution Binary stars Massive stars |
| url | https://doi.org/10.3847/1538-4357/adc5fa |
| work_keys_str_mv | AT minorishikauchi evolutionoftheconvectivecoremassduringthemainsequence AT ryosukehirai evolutionoftheconvectivecoremassduringthemainsequence AT ilyamandel evolutionoftheconvectivecoremassduringthemainsequence |