Inversion for the structure of a star of 1.45 Msolar using the internal phase shift

Details Inversion for the structure of a star of 1.45 Msolar using the internal phase shift Inversion for the structure of a star of 1.45 Msolar using the internal phase shift

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.485..341r&link_type=abstract

In: Proceedings of the First Eddington Workshop on Stellar Structure and Habitable Planet Finding, 11 - 15 June 2001, Córdoba, S

Physics

5

Stars: Oscillations, Structure, Inversion

Scientific paper

We describe the results of an inversion for the internal structure of a star of 1.45 Msolar using the internal phase shifts. We derive the internal phase shifts from frequencies of p-modes with l = 0,1,2,3 in the range 500 - 2000 μHz, with random errors of the order of 0.3 μHz. To deduce the interior structure of the star we model the star by a set of values Di = Γ1dlogρ/dlogP at fractional mass points qi and search for the values of Di that give the best fit to the internal phase shifts. The internal density profile and the mass of the convective core are satisfactorily reproduced.

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