Solar constraints
نویسندگان
چکیده
منابع مشابه
Solar Models with Helioseismic Constraints and the Solar Neutrino Problem
Imposing a constraint of the sound-speed profile determined from helioseismology and updating the microphysics, we have revised our seismic solar model, constructed with the assumption of a homogeneous metal abundance distribution, and have shown that the theoretically expected neutrino fluxes are still significantly more than the observations. With the same sound-speed profile constraint, we a...
متن کاملLocalized Helioseismic Constraints on Solar Structure
Localized differences between the real Sun and standard solar models are shown to be small. The sound speeds of the real and the standard model Suns typically differ by less than 0.3% for regions of radial width 30.1 RJ in the solar core. Subject headings: nuclear reactions, nucleosynthesis, abundances — Sun: interior — Sun: oscillations
متن کاملHelioseismic Constraints on the Properties of the Solar Core and on the Solar Neutrino Fluxes
The temperature and the abundance of hydrogen in the Sun's interior are estimated by the method of`secondary' inversion of solar oscillation frequencies. In this method, the equations of state and thermal balance are used in addition to the hydrostatic equations. The temperature of the solar core estimated from the current helioseismic data is slightly higher than in the standard solar model, t...
متن کاملStandard Solar Models in the Light of New Helioseismic Constraints I The Solar Core
In this paper, we examine a new updated solar model taking advantage of the recent reexamination of the nuclear reaction rates and of the microscopic diffusion of helium and heavy elements. Our best model fits the helioseismic data reasonably well: the base of the convective zone is at R bcz = 0.715, the photospheric helium in mass fraction is 0.243, the sound speed square difference between th...
متن کاملHelioseismic Constraints on the Solar Structure and the Solar Neutrino Problem
The inversion of helioseismic modes leads to precise constraints on the internal structure of the Sun, which must be satissed by the computed solar models. Including the element segregation which occurred in the Sun since its formation leads to solar models in much better agreement with the inversion structure than those which ignore it. However the observed lithium depletion cannot be explaine...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1984
ISSN: 0074-1809
DOI: 10.1017/s0074180900030539