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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Canadian Hydrogen Intensity Mapping Experiment ： ウィキペディア英語版 Canadian Hydrogen Intensity Mapping Experiment The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is an interferometric radio telescope under construction at the Dominion Radio Astrophysical Observatory in British Columbia, Canada which will consist of four 100 x 20 metre cylinders (roughly the size and shape of snowboarding half-pipes) populated with 1024 radio receivers sensitive at 400–800 MHz. The telescope's low-noise amplifiers are being built with components adapted from the cellphone industry and its digital processing makes use of high-end computer gaming technology. The telescope has no moving parts and observes half of the sky each day as the Earth turns. CHIME is partnership between the University of British Columbia, McGill University, the University of Toronto and the Dominion Radio Astrophysical Observatory. == Science goals == One of the biggest puzzles in contemporary cosmology is why the expansion of the Universe is speeding up. About seventy percent of the Universe today consists of so-called dark energy that counteracts gravitationally-attractive forces and causes this acceleration. However, very little is known about what dark energy actually is. CHIME will make precise measurements of the acceleration of the Universe to improve our empirical knowledge of how dark energy behaves. The experiment is designed to observe the period in the Universe’s history during which the standard ΛCDM model predicts that dark energy began to dominate the energy density of the Universe and when decelerated expansion transitioned to acceleration. In addition to its main, cosmological purpose, CHIME will also be well-equipped for other astrophysical science. It will be ideal for discovering and monitoring pulsars and other radio transients, and a specialised instrument is being developed for these science objectives. Further, its daily survey of the sky will enable study of our own galaxy in radio frequencies and is expected to improve our understanding of galactic magnetic fields. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Canadian Hydrogen Intensity Mapping Experiment」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.