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Loop-like arched shapes of plasma in the solar atmosphere are |
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The continuous spectrum of the Sun is created in |
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The solar cycle occurs every |
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The solar corona appears to be so hot because of the heating provided by |
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the magnetic field energy driven from the below |
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Magnetic reconnection is presumably one of the most efficient ways to convert |
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magnetic energy into kinetic energy and the heat |
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The solar activity cycle is characterized by |
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a variation in a number of sunspots over the solar surface, a variation of number of flares per unit times formed in the solar atmosphere, a variation of number of coronal mass ejections per unit times formed in the solar atmosphere, and a variation of the magnetic flux at the solar surface |
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The solar chromosphere produces mostly |
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In proton-proton fusion chain four hydrogen nuclei fuse together to form |
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The Sun is mostly composed of |
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The Sun's outermost layers can be viewed directly during |
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Sunspots are characterized by |
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lower temperatures than that in surrounding areas, stronger magnetic fields than that in surrounding areas, and darker concentrated areas than the surrounding photosphere |
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The solar flares represent a process of |
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magnetic energy release in the solar atmosphere |
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Interaction of the solar wind with the Earth's magnetosphere causes |
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geomagnetic, Aurora Borealis and Aurora Australis |
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The energy flows from the solar core to the solar photosphere due to |
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15 million Kelvin hot dense plasma |
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The Solar Dynamic Observatory has recently provided high resolution images of |
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the solar corona, the solar photosphere, and the solar chromosphere |
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Hot (multi-million kelvin) and rarefied solar plasma is |
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concentrated in the solar coronal active regions |
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is the source of space weather, is made up of charged particles that are heated up so much that they escape the Sun's gravitational field, escapes the Sun along the magnetic field lines, and the source of Northern lights formed in the Earth’s polar regions |
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To explain cyclic variations in the number and location of sunspots at the photosphere, astronomers developed |
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the magnetic dynamo theory |
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The Sun generates its energy due to |
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