A new deepening of mass-radius empirical relation for main sequence stars
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866909734301335552 |
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| author | Camposeo, Salvatore |
| author_facet | Camposeo, Salvatore |
| contents | In the following paper I have compared some typical mass-radius relations for main sequence stars by studying their level of agreement with DEBCat [https://doi.org/10.48550/arXiv.1411.1219], which is a recent catalogue by J. Southworth. Models chosen for testing were originally developed using older, smaller datasets than DEBCat. Each model follows a two-piece function structure, where each branch is a monomial power-law. This approach is motivated by theoretical considerations suggesting that low-mass and high-mass main sequence stars exhibit distinct behaviors in energy production and energy transport. Best level of agreement is found for Zamorano's model [https://doi.org/10.1007/bf00653969]. Also a new empirical relation is proposed by fitting a two-piece monomial power-law to DEBCat main sequence stars. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_08845 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A new deepening of mass-radius empirical relation for main sequence stars Camposeo, Salvatore Solar and Stellar Astrophysics In the following paper I have compared some typical mass-radius relations for main sequence stars by studying their level of agreement with DEBCat [https://doi.org/10.48550/arXiv.1411.1219], which is a recent catalogue by J. Southworth. Models chosen for testing were originally developed using older, smaller datasets than DEBCat. Each model follows a two-piece function structure, where each branch is a monomial power-law. This approach is motivated by theoretical considerations suggesting that low-mass and high-mass main sequence stars exhibit distinct behaviors in energy production and energy transport. Best level of agreement is found for Zamorano's model [https://doi.org/10.1007/bf00653969]. Also a new empirical relation is proposed by fitting a two-piece monomial power-law to DEBCat main sequence stars. |
| title | A new deepening of mass-radius empirical relation for main sequence stars |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2508.08845 |