Determining solar abundances using helioseismology

Antia, H. M. ; Basu, Sarbani (2006) Determining solar abundances using helioseismology Astrophysical Journal, 644 (2). pp. 1292-1298. ISSN 0004-637X

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The recent downward revision of solar photospheric abundances of oxygen and other heavy elements has resulted in serious discrepancies between solar models and solar structure as determined through helioseismology. In this work we investigate the possibility of determining the solar heavy-element abundance without reference to spectroscopy by using helioseismic data. Using the dimensionless sound-speed derivative in the solar convection zone, we find that the heavy-element abundance Z=0.0172 ± 0.002, which is closer to the older, higher value of the abundances.

Item Type:Article
Source:Copyright of this article belongs to American Astronomical Society.
ID Code:12386
Deposited On:10 Nov 2010 06:18
Last Modified:16 May 2016 21:44

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