The solar model problem resurrected
Abstract
The new solar composition, when applied to compute a model of the Sun, leads to serious disagreement between the predictions of the model and the observations obtained by helioseismology. New measurements of the coronal Ne/O abundance ratio in nearby stars using X-ray spectra typically find high values of Ne/O=0.4 rather than 0.15 normally adopted for the Sun. Drake & Testa (2005) suggest that this high Ne/O ratio is appropriate also for the Sun, which would bring the solar models back in agreement with the helioseismological observations. Here we present arguments why the high Ne/O ratio is unlikely to be applicable to the Sun.
- Publication:
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arXiv e-prints
- Pub Date:
- October 2005
- DOI:
- 10.48550/arXiv.astro-ph/0510377
- arXiv:
- arXiv:astro-ph/0510377
- Bibcode:
- 2005astro.ph.10377A
- Keywords:
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- Astrophysics
- E-Print:
- Submitted to Nature as Brief Communications Arising following paper "The solar model problem solved by the abundance of neon in stars of the local cosmos" by Drake &