Bibliographic Details
| Title: |
DIAGNOSTICS OF THE INTERNAL STRUCTURE OF STARS USING THE DIFFERENTIAL RESPONSE TECHNIQUE. |
| Authors: |
Roxburgh, Ian1,2, Vorontsov, Sergei1,3 |
| Source: |
Astrophysics & Space Science. 2003, Vol. 284 Issue 1, p187-191. 5p. |
| Subjects: |
Solar interior, Stellar oscillations, Stellar evolution, Stellar mass, Calibration, Asteroseismology |
| Abstract: |
We address the problem of the diagnosing the deep interior structure of stars using acoustic p-modes, and investigate the diagnostic capabilities of two complementary approaches both based on the differential response technique (Vorontsov, 1998): (a) direct calibration using a grid of evolutionary stellar models, and (b) linear and non-linear (with consecutive linearisations) inversion of low-degree frequencies. We apply this analysis to the frequencies of a model of an old 0.8M[This symbol cannot be presented in ASCII format] star, and to the solar frequencies obtained from BiSON measurements, using a 2-D grid of reference models of different mass and age. We explore the convergence and stability of the asteroseismic inversion, performed with the adaptive regularisation technique of Strakhov and Vorontsov (2001). [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
