...However, the tidal force was too weak to draw out solar material. This led to the proposal of the binary star theory, which Russell published in 1935 and improved on the following year by R.A. Littleton. According to this theory, the Sun was once a binary star, and a passing star approached the companion star, drawing out material through tidal forces, of which a small portion became planets. ... *Some of the terminology that mentions "Littleton, RA" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…しかしそれでは潮汐力があまりにも弱すぎて太陽物質を引き出せないのである。そこでラッセルが35年に発表して翌年リトルトンR.A.Littletonが改良した連星説の提唱となった。これによれば太陽はかつて連星であり,その伴星に通過星が接近して潮汐作用で物質をひき出し,そのごく一部が惑星になったとするのである。… ※「Littleton,R.A.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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