carlos peña garay ific, valencianeutrino.pd.infn.it/neutel09/talks/pena-garay.pdfcarlos peña garay...
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![Page 1: Carlos Peña Garay IFIC, Valencianeutrino.pd.infn.it/NEUTEL09/Talks/Pena-Garay.pdfCarlos Peña Garay IFIC, Valencia Solar Metallicity “Un altro modo di guardare il cielo” How do](https://reader035.vdocuments.site/reader035/viewer/2022071211/6023b09771e15142f54088a8/html5/thumbnails/1.jpg)
March 10th, 2009 Neutrino Telescopes, Venice
Carlos Peña Garay IFIC, Valencia
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Solar Metallicity
“Un altro modo di guardare il cielo”
How do stars start?
Standard: Early Sun Chemically homogeneous (early fully convective Hayashi phase)
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BPS08: Improved S34 & S1,14 + GS98 Zi/X
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SSM BPS08
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Uncertainties: where to improve
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Uncertainties: Partial contributions
Source No composition % (S33, S34, S17, S114, Op, Diff) Composition %
7Be 5 (2.5,2.8,0.0,0.0,3.2,2.0) 2
8B 10 (2.6,2.7,3.8,0.0,6.8,4.2) 5
13N 8 (0.2,0.2,0.0,6.0,3.6,5.1) 13
15O 11 (0.2,0.2,0.0,8.3,5.2,5.9) 12
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BPS08: Opacities
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Solar Neutrinos
Rain on SSM’s parade
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Improved abundances: GS vs AGS
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The pulsating Sun: Helioseismology
Doppler observation of spectral lines: - velocities ~ cm/s - long observations needed - Accuracy in frequencies ~10-5
Physics: Acoustic waves, pressure-modes, stochastically excited by convection
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Helioseismology
• Oscillation frequencies depend on ρ, P, g, c • Inversion problem: use measured frequencies and a reference solar model to determine the solar structure
Output of inversion procedure: δc2(r), δρ(r), RCZ, YSURF
Relative difference of c between Sun and BP00
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BPS08 Helioseismology: GS vs AGS
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Low abundances: non-local solution needed
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Low abundances: non-local solution needed
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BPS08: GS vs AGS solutions
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Neutrino fluxes: correlations
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Global Analysis (+ lum. constraint)
+K2K+MINOS
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How do stars start? (I)
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Metal difusion
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Testing BPS08(GS) & BPS08(AGS) with ν data
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Roadmap: CNO fluxes
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How do stars start? (II)
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How to extract core metallicities
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Conclusions