منابع مشابه
Standard Solar Models
A lot of progress has been made in understanding the robustness of solar model predictions since Neutrino 96 [1]. In this talk, I will first summarize the new ingredients and then give the current best-estimates. Then I will discuss the uncertainties in the predictions. Many of the results given here are adopted from the recent BP98 paper [2]. As we shall see in Section 3, there is excellent ag...
متن کاملHelioseismology and Standard Solar Models
We present a systematical analysis of uncertainties in the helioseismological determination of quantities characterizing the solar structure. We discuss the effect of errors on the measured frequencies, the residual solar model dependence and the uncertainties of the inversion method. We find Y ph = 0.238 − 0.259, R b /R ⊙ = 0.708 − 0.714 and ρ b = (0.185 − 0.199) gr/cm 3 (the index b refers to...
متن کاملAre Standard Solar Models Reliable?
The sound speeds of solar models that include element diffusion agree with helioseismological measurements to a rms discrepancy of better than 0.2% throughout almost the entire Sun. Models that do not include diffusion, or in which the interior of the Sun is assumed to be significantly mixed, are effectively ruled out by helioseismology. Standard solar models predict the measured properties of ...
متن کاملSolar Models with Non–standard Chemical Composition
The OPAL monochromatic opacity tables are used to evaluate the impact of a non-standard chemical composition on solar models. A calibrated olar model with consistent diffusion including the effect of radiative forces and ionization on drift velocities is presented. It is shown that surface abundances are predicted to change slightly more than in the standard solar models. All elements included ...
متن کاملStandard Solar Neutrinos and The Standard Solar Model
The standard solar model (SSM) yield a 8B solar neutrino flux which is consistent within the theoretical and experimental uncertainties with that observed at SuperKamiokande. The combined results from the SuperKamiokande and the Chlorine solar neutrino experiments do not provide a solid evidence for neutrino properties beyond the minimal standard electroweak model. The results from the Gallium ...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1999
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(99)00399-0