Triple Alpha chain

Triple Alpha chain - Solar Atmosphere – the outer most...

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Triple Alpha chain Double arrow means the reaction goes both directions Energy Flow to the Surface In order to understand how energy from the core makes its way to the surface you must first know what the internal structure of looks like. There are four major regions in the sun: Thermonuclear Energy core Radiation Zone – The radiation zone is located between a ¼ and ½ the distance out from the core. In this zone most of the hard radiation created during the fusion process is absorbed. 94% of the mass of the Sun is in the inner half. Convection Zone – This zone takes up most of the rest of the radius of the Sun. In this zone heat, light and other forms of electromagnetic radiation are transferred to the surface of the Sun. The process is similar to boiling water, the gas nearest the radiation zone is heated and rise to the surface, gas near the surface cools and sinks back toward the radiation zone. Large currents of gas are created by this process.
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Unformatted text preview: Solar Atmosphere – the outer most part of the star. This is the part of the Sun that we see. Opacity- the efficiency with which energy is carried outward by radiation or the ability of a substance to stop the flow of photons. Most of the energy generated at the core takes about 170,000 years to reach the surface. <How do we know that fusion is still going on at the core?> Solar Neutrinos – generated by the fusion process. Solar neutrinos take only about 2 seconds to reach the surface of the Sun. A small portion of the neutrinos reach Earth in about 8 minutes. Neutrinos are very hard to detect, first detected in 1963 by Raymond Davis. Professor Davis used a large tank, filled with cleaning fluid (), built in an old lead mine. New neutrino detectors – Super Kamiokande, Sudbury Neutrino Observatory, Sage and Gallax....
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