On the seismic age of the Sun

Details On the seismic age of the Sun On the seismic age of the Sun

2007-10-03

arxiv.org/abs/0710.0762v1

AIPConf.Proc.948:219-224,2007

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures, in Stancliffe R.J., Dewi J., Houdek G., Martin R.G., Tout C.A., eds, AIP Conf. Proc., Unsolved Problems in

Scientific paper

10.1063/1.2818974

We use low-degree acoustic modes obtained by the BiSON to estimate the main-sequence age $t_\odot$ 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_\odot=4.68\pm0.02 $Gy, coupled with an initial heavy-element abundance $Z=0.0169\pm0.0005$. 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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