solar proton

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• Solar proton event — A Solar proton event occurs when protons emitted by the Sun become accelerated to very high energies either close to the Sun during a solar flare or in interplanetary space by the shocks associated with coronal mass ejections. These high energy… …   Wikipedia

• Solar variation — Solar variations are changes in the amount of solar radiation emitted by the Sun. There are periodic components to these variations, the principal one being the 11 year solar cycle (or sunspot cycle), as well as aperiodic fluctuations. Solar… …   Wikipedia

• Solar Energetic Particles — are high energy particles coming from the Sun which had been first observed in the early 1940s. They consist of protons, electrons and heavy ions with energy ranging from a few tens of keV to GeV (the fastest particles can reach speed up to 80%… …   Wikipedia

• Proton — For other uses, see Proton (disambiguation). This article is about the proton as a subatomic particle. For the aqueous form of the hydrogen ion often encountered in biochemistry, see Hydronium. Proton The quark structure of the proton. (The color …   Wikipedia

• Solar Mesosphere Explorer — The Solar Mesosphere Explorer (also known as Explorer 64) was an United States unmanned spacecraft to investigate the processes that create and destroy ozone in Earth s upper atmosphere. The mesosphere is a layer of the atmosphere extending from… …   Wikipedia

• Solar flare — A solar flare is a violent explosion in a star s (like the Sun s) atmosphere releasing as much energy as 6 times; 1025 Joules.cite journal last=Kopp first=G. coauthors=Lawrence, G and Rottman, G. year=2005… …   Wikipedia

• Solar neutrino problem — The solar neutrino problem was a major discrepancy between measurements of the numbers of neutrinos flowing through the earth and theoretical models of the solar interior, lasting from the mid 1960s to about 2002. The discrepancy has since been… …   Wikipedia

• Solar neutrino — The main contribution comes from the so called proton proton chain reaction. The net reaction is:: 4 p + 2e = He + 2 u e ! ,or in words:: 4 protons + 2 electrons = Helium + 2 electron neutrinos.Neutrinos from the proton proton process have energy …   Wikipedia

• Solar mass — Weight of the Sun redirects here. For the song, see Tao of the Dead. Size and mass of very large stars: Most massive example, the blue Pistol Star (150 ). Others are Rho Cassiopeiae (40 …   Wikipedia

• Proton–proton chain reaction — The proton–proton chain reaction dominates in stars the size of the Sun or smaller. The proton–proton chain reaction is one of several fusion reactions by which stars convert hydrogen to helium, the primary alternative being the CNO cycle. The… …   Wikipedia

• Proton-proton chain reaction — The proton proton chain reaction is one of several fusion reactions by which stars convert hydrogen to helium, the primary alternative being the CNO cycle. The proton proton chain dominates in stars the size of the Sun or smaller.Overcoming… …   Wikipedia