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The Square Kilometre Array (SKA) is a radio telescope project that will be built in Australia and South Africa. It will have a total collecting area of approximately one square kilometre.〔(【引用サイトリンク】title=Facts and figures )〕 It will operate over a wide range of frequencies and its size will make it 50 times more sensitive than any other radio instrument. It will require very high performance central computing engines and long-haul links with a capacity greater than the current global Internet traffic.〔(), ''The Square Kilometre Array'', p.19〕 It will be able to survey the sky more than ten thousand times faster than ever before. With receiving stations extending out to distance of at least 3,000 kilometres (1,900 mi) from a concentrated central core, it will exploit radio astronomy's ability to provide the highest resolution images in all astronomy. The SKA will be built in the southern hemisphere, in sub-Saharan states with cores in South Africa and Australia, where the view of the Milky Way Galaxy is best and radio interference least.〔 Construction of the SKA is scheduled to begin in 2018 for initial observations by 2020, but the construction budget is not secured at this stage. The SKA will be built in two phases, with Phase 1 (2018-2023) representing about 10% of the capability of the whole telescope.〔(【引用サイトリンク】title=The project timeline )〕〔(【引用サイトリンク】title=SKA site bid outcome )〕 Phase 1 of the SKA was cost-capped at 650 million euros in 2013, while Phase 2's cost has not yet been established.〔(【引用サイトリンク】title=SKA Project )〕 The headquarters of the project are located at the Jodrell Bank Observatory, in the UK.〔(【引用サイトリンク】title=The SKA Organisation )〕〔(UK to be giant telescope's HQ ). Jonathan Amos, ''BBC News''. 29 April 2015.〕 ==Organisation== The SKA—a global project with ten member countries—aims to answer fundamental questions about the origin and evolution of the Universe.〔 In April 2011, Jodrell Bank Observatory of the University of Manchester, in Cheshire, England was announced as the location for the project headquarters.〔 In November 2011, the SKA Organisation was formed and the project moved from a collaboration to an independent, not for profit, company. , the members of the SKA Organisation are:〔〔http://www.mpifr-bonn.mpg.de/99606/news_publication_6728490?c=2169〕〔(【引用サイトリンク】title=Sweden joins global radio telescope project )〕 * Australia: Department of Industry and Science * Canada: National Research Council * China: National Astronomical Observatories of the Chinese Academy of Sciences * Germany: Federal Ministry of Education and Research (withdrew in 2014.〔) * India: National Centre for Radio Astrophysics〔(【引用サイトリンク】title=India’s National Centre for Radio Astrophysics becomes the 11th full SKA Organisation member )〕 * Italy: National Institute for Astrophysics * New Zealand: Ministry of Economic Development * South Africa: National Research Foundation * Sweden: Onsala Space Observatory * The Netherlands: Netherlands Organisation for Scientific Research * United Kingdom: Science and Technology Facilities Council Germany is a member,〔(【引用サイトリンク】title=Germany joins SKA, praises SA )〕〔(【引用サイトリンク】title=Deutschland beteiligt sich an SKA-Riesenteleskop )〕 but on 5 June 2014 the federal science ministry indicated its intention to leave the SKA project at the end of June 2015. 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「Square Kilometre Array」の詳細全文を読む スポンサード リンク
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