อภิธานศัพท์ฟิสิกส์ (อวกาศ)
Completion requirements
อภิธานศัพท์ฟิสิกส์ (อวกาศ)
เลือกดูโดยใช้ดัชนีคำศัพท์
พิเศษ | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ก | ข | ค | ฆ | ง | จ | ฉ | ช | ซ | ฌ | ญ | ฎ | ฏ | ฐ | ฑ | ฒ | ณ | ด | ต | ถ | ท | ธ | น | บ | ป | ผ | ฝ | พ | ฟ | ภ | ม | ย | ร | ล | ว | ศ | ษ | ส | ห | ฬ | อ | ฮ | ทั้งหมด
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PENUMBRA The SUNSPOT area that may surround the darker UMBRA or umbrae. It
consists of linear bright and dark elements radial from the sunspot
umbra.
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PERSISTENCE Continuation of existing conditions. When a physical parameter
varies slowly, the best prediction is often persistence.
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PHOTOSPHERE The lowest layer of the solar atmosphere; corresponds to the
solar surface viewed in WHITE LIGHT. SUNSPOTs and FACULAe are
observed in the photosphere.
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PLAGE An extended emission feature of an ACTIVE REGION that exists from
the emergence of the first magnetic flux until the widely scattered
remnant magnetic fields merge with the background.
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PLAGE CORRIDOR A space in chromospheric (see CHROMOSPHERE) PLAGE lacking
plage intensity, coinciding with polarity inversion line.
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PLAGENIL Spotless disc free of calcium plage
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PLASMA Any ionized gas, that is, any gas containing ions and electrons.
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POST-FLARE LOOPS A LOOP PROMINENCE SYSTEM often seen after a major
TWO-RIBBON FLARE, which bridges the ribbons.
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PROMINENCE A term identifying cloud-like features in the solar atmosphere.
The features appear as bright structures in the CORONA above the
solar LIMB and as dark FILAMENTs when seen projected against the
solar DISK.
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PROTON Solar activity levels with at least on high energy event (Class X
Flares)
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PROTON EVENT By definition, the measurement of at least 10
protons/sq.cm/sec/steradian at energies greater than 10 MeV.
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PROTON FLARE Any FLARE producing significant FLUXes of greater-than-10 MeV
protons in the vicinity of the earth.
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