ar X iv : 0 71 0 . 07 62 v 1 [ as tr o - ph ] 3 O ct 2 00 7 On the seismic age of the Sun

نویسنده

  • D. O. Gough
چکیده

We use low-degree acoustic modes obtained by the BiSON to estimate the mainsequence age t⊙ of the Sun. The calibration is accomplished by linearizing the deviations from a standard solar model the seismic frequencies of which are close to those of the Sun. Formally, we obtain the preliminary value t⊙ = 4.68±0.02Gy, coupled with an initial heavy-element abundance Z = 0.0169± 0.0005. The quoted standard errors, which are not independent, are upper bounds implied under the assumption that the standard errors in the observed frequencies are independent.

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تاریخ انتشار 2008