JST科学技術用語日英対訳辞書

dark matter

暗黒物質; ダークマター

日本語WordNet(英和)

dark matter

【名詞】

1

宇宙の90パーセントを作ると信じられている物質の仮定上の形

(a hypothetical form of matter that is believed to make up 90 percent of the universe)

>>「dark matter」に関する類語一覧

日英・英日専門用語辞書

dark matter

暗黒物質，ダークマター

クロスランゲージ 37分野専門語辞書

dark matter

ダーク・マター; 暗黒物質

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Dark Matter

ダークマター

Weblio英和対訳辞書

dark matter

ダークマター, 暗黒物質

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dark matter

ダークマター

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Dark matter

暗黒物質

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Wiktionary英語版

dark matter

出典:『Wiktionary』 (2012/04/30 02:34 UTC 版)

名詞

dark matter (uncountable)

1. (astronomy) Particles of matter that cannot be detected by their radiation but whose presence is inferred from gravitational effects.
   • 2001, Susan M. Fitzpatrick, John T. Brue, Carving Our Destiny: Scientific Research Faces a New Millenium,

     The evidence for dark matter in galaxies started to accumulate in the mid-1970s. By the following decade it became clear that essentially all galaxies, including our own Milky Way, are surrounded by extensive halos of dark matter.

   • 2004, L. Bergström, A. Goobar, Particle Astrophysics and the Dark Sector of the Universe, in John W. Mason (editor), Astrophysics Update, pages 124-125,

     On large scales like that of clusters of galaxies, gravitational lensing indicates that the dark matter is smoothly distributed, on the average.

派生語

• cold dark matter
• hot dark matter
• warm dark matter

参考

• dark energy

ウィキペディア英語版

Dark matter

出典:『Wikipedia』 (2011/08/06 00:57 UTC 版)

英語による解説

ウィキペディア英語版からの引用

引用

In astronomy and cosmology, dark matter is matter that is inferred to exist from gravitational effects on visible matter and gravitational lensing of background radiation, but that neither emits nor scatters light or other electromagnetic radiation (and so cannot be directly detected via optical or radio astronomy). Its existence was hypothesized to account for discrepancies between calculations of the mass of galaxies, clusters of galaxies and the entire universe made through dynamical and general relativistic means, and calculations based on the mass of the visible "luminous" matter these objects contain: stars and the gas and dust of the interstellar and intergalactic medium.