English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Solar activity and helioseismology show the limitation of the standard solarmodel and call for the inclusion of dynamical processes in both convective andradiative zones. We concentrate here on the radiative zone and first show thesensitivity of boron neutrinos to the microscopic physics included in solarmodels. We confront the neutrino predictions of the seismic model to all thedetected neutrino fluxes. Then we compute new models of the Sun including adetailed transport of angular momentum and chemicals due to internal rotationthat includes meridional circulation and shear induced turbulence. We use twostellar evolution codes: CESAM and STAREVOL to estimate the different terms. Wefollow three temporal evolutions of the internal rotation differing by theirinitial conditions: very slow, moderate and fast rotation, with magneticbraking at the arrival on the main sequence for the last two. We find that themeridional velocity in the present solar radiative zone is extremely small incomparison with those of the convective zone, smaller than 10^-6 cm/s insteadof m/s. All models lead to a radial differential rotation profile but with asignificantly different contrast. We compare these profiles to the presumedsolar internal rotation and show that if meridional circulation and shearturbulence were the only mechanisms transporting angular momentum within theSun, a rather slow rotation in the young Sun is favored. The transport byrotation slightly influence the sound speed profile but its potential impact onthe chemicals in the transition region between radiation and convective zones.This work pushes us to pursue the inclusion of the other dynamical processes tobetter reproduce the present observable and to describe the young active Sun.We also need to get a better knowledge of solar gravity mode splittings to usetheir constraints.

Seismic and dynamical solar models i-the impact of the solar rotation history on neutrinos and seismic indicators