英语词汇“roche limit”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

a. The closest approach that an object held together by its own gravity can make to a more massive object without being pulled apart by the gravitational field of the latter.

ΘΚΠ

the world > the universe > space > [noun] > Roche limit

Roche limit1889

Roche zone1941

Roche lobe1968

1889 G. H. Darwin in Harper's Mag. June 73/1 The distance of..2·44 of a planet's radius I call Roche's limit for that planet.

1930 R. H. Baker Astron. v. 212 All parts of Saturn's rings lie within Roche's limit.

1969 Times 10 July 12/8 If the moon had ever come within a critical distance of earth, known as the Roche limit, the tidal forces raised by the earth would have disrupted it.

1985 G. A. Effinger Nick of Time (1987) 212 Roche's limit is where old Luna goes blooie, doing you and me no good at all.

2003 J. Scalzi Rough Guide to Universe ix. 130 Saturn's rings..may be what remains of a moon that originally lay within the planet's Roche limit.

b. The smallest continuous equipotential surface which can exist around both members of a system of two gravitating objects (typically a binary star system).This surface has the form of two lobes meeting at a point, like an hourglass.

ΚΠ

1959 Z. Kopal Close Binary Syst. iii. 133 Such configurations represent the largest closed equipotentials capable of containing the whole mass of the respective components, and will hereafter be referred to as their Roche limits.

1972 W. Strohmeier Variable Stars vii. 182 Expansion of the components in close binaries towards their Roche limits, in a time scale of 10⁶ years, can also give rise to an exchange between the rotational and orbital momenta.

2001 A. Unsöld et al. New Cosmos (ed. 5) vi. 190/2 (caption) The Roche limit curve meets itself at the Lagrange point L₁.

单词	roche limit
释义	> as lemmas Roche limit Roche limit n. (also Roche's limit) a. The closest approach that an object held together by its own gravity can make to a more massive object without being pulled apart by the gravitational field of the latter. ΘΚΠ the world > the universe > space > [noun] > Roche limit Roche limit1889 Roche zone1941 Roche lobe1968 1889 G. H. Darwin in Harper's Mag. June 73/1 The distance of..2·44 of a planet's radius I call Roche's limit for that planet. 1930 R. H. Baker Astron. v. 212 All parts of Saturn's rings lie within Roche's limit. 1969 Times 10 July 12/8 If the moon had ever come within a critical distance of earth, known as the Roche limit, the tidal forces raised by the earth would have disrupted it. 1985 G. A. Effinger Nick of Time (1987) 212 Roche's limit is where old Luna goes blooie, doing you and me no good at all. 2003 J. Scalzi Rough Guide to Universe ix. 130 Saturn's rings..may be what remains of a moon that originally lay within the planet's Roche limit. b. The smallest continuous equipotential surface which can exist around both members of a system of two gravitating objects (typically a binary star system).This surface has the form of two lobes meeting at a point, like an hourglass. ΚΠ 1959 Z. Kopal Close Binary Syst. iii. 133 Such configurations represent the largest closed equipotentials capable of containing the whole mass of the respective components, and will hereafter be referred to as their Roche limits. 1972 W. Strohmeier Variable Stars vii. 182 Expansion of the components in close binaries towards their Roche limits, in a time scale of 10⁶ years, can also give rise to an exchange between the rotational and orbital momenta. 2001 A. Unsöld et al. New Cosmos (ed. 5) vi. 190/2 (caption) The Roche limit curve meets itself at the Lagrange point L₁. extracted from Rochen.³ < as lemmas
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