We present our results concerning a systematical analysis of helioseismic implications on solar structure and neutrino production. We find Y(ph) = 0.238 - 0.259, R(b)/R. = 0.708 - 0.714 and rho(b) = (0.185 - 0.199) gr/cm(3). In the interval 0.2 < R/R. < 0.65, the quantity U = P/rho is determined with and accuracy of +/-5 parts per thousand or better. At the solar center still one has remarkable accuracy, Delta U/U <4%. We compare the predictions of recent, solar models (standard and non-standard) with the helioseismic results. By constructing helioseismically constrained solar models, the central solar temperature is found to be T = 1.58 x 10(7) K with a conservatively estimated accuracy of 1.4%, so that the major unceratainty on neutrino fluxes is due to nuclear cross section and not to salar inputs.

Helio seismology, solar models and neutrino fluxes

CASTELLANI, VITTORIO;DEGL'INNOCENTI, SCILLA;
1999

Abstract

We present our results concerning a systematical analysis of helioseismic implications on solar structure and neutrino production. We find Y(ph) = 0.238 - 0.259, R(b)/R. = 0.708 - 0.714 and rho(b) = (0.185 - 0.199) gr/cm(3). In the interval 0.2 < R/R. < 0.65, the quantity U = P/rho is determined with and accuracy of +/-5 parts per thousand or better. At the solar center still one has remarkable accuracy, Delta U/U <4%. We compare the predictions of recent, solar models (standard and non-standard) with the helioseismic results. By constructing helioseismically constrained solar models, the central solar temperature is found to be T = 1.58 x 10(7) K with a conservatively estimated accuracy of 1.4%, so that the major unceratainty on neutrino fluxes is due to nuclear cross section and not to salar inputs.
Castellani, Vittorio; Degl'Innocenti, Scilla; Dziembowski, Wa; Fiorentini, G; Ricci, B.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/206352
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 14
  • ???jsp.display-item.citation.isi??? 13
social impact