Seismic Test of Solar Models, Solar Neutrinos and Implications for Metal-Rich Accretion

Details Seismic Test of Solar Models, Solar Neutrinos and Implications for Metal-Rich Accretion Seismic Test of Solar Models, Solar Neutrinos and Implications for Metal-Rich Accretion

2001-11-05

arxiv.org/abs/astro-ph/0111096v2

Astrophys.J. 576 (2002) 1075-1084

Astronomy and Astrophysics

Astrophysics

Revision: 23 pages, 8 figures, 3 tables, to be published in ApJ, Sept 2002. Used newer neutrino cross sections, modified text

Scientific paper

10.1086/341795

The Sun is believed to have been the recipient of a substantial amount of metal-rich material over the course of its evolution, particularly in the early stages of the Solar System. With a long diffusion timescale, the majority of this accreted matter should still exist in the solar convection zone, enhancing its observed surface abundance, and implying a lower-abundance core. While helioseismology rules out solar models with near-zero metallicity cores, some solar models with enhanced metallicity in the convection zone might be viable, as small perturbations to the standard model. Because of the reduced interior opacity and core temperature, the neutrino flux predicted for such models is lower than that predicted by the standard solar model. This paper examines how compatible inhomogeneous solar models of this kind are with the observed low and intermediate degree p-mode oscillation data, and with the solar neutrino data from the SNO Collaboration. We set an upper limit on how much metal-rich accretion took place during the early evolution of the Sun at about 2 Earth masses of iron (or about 40 Earth masses of meteoric material).

Affiliated with

Also associated with

No associations

Rating

Seismic Test of Solar Models, Solar Neutrinos and Implications for Metal-Rich Accretion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Seismic Test of Solar Models, Solar Neutrinos and Implications for Metal-Rich Accretion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seismic Test of Solar Models, Solar Neutrinos and Implications for Metal-Rich Accretion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-591646