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.
Keywords
Cite
@article{arxiv.astro-ph/0510377,
title = {The solar model problem resurrected},
author = {M. Asplund and N. Grevesse and M. Guedel and A. J. Sauval},
journal= {arXiv preprint arXiv:astro-ph/0510377},
year = {2007}
}
Comments
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 & Testa, Nature 436 (2005) 525-528 (astro-ph/0506182)