Pickering series
Three lines of singly ionized helium found, usually in absorption, in the spectra of hot stars, produced by transitions of an electron with principal quantum number n=4 state from a higher energy level.
(botany) Belonging to the family Grossulaceae (now family Grossulariaceae) of currants and gooseberries.
(biochemistry) Any of a family of antioxidant enzymes that mediate signal transduction in mammalian cells.
A seminomadic lifestyle.
天文学者たちはその恒星のスペクトルで、主に吸収として観測される一価にイオン化したヘリウムの上位準位から主量子数n=4への遷移によって生じる3本の線を検出した。
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