{"id":16784,"date":"2020-03-09T18:03:41","date_gmt":"2020-03-09T17:03:41","guid":{"rendered":"https:\/\/www.asi.it\/?page_id=16784"},"modified":"2020-04-09T12:58:17","modified_gmt":"2020-04-09T10:58:17","slug":"lisa","status":"publish","type":"page","link":"https:\/\/www.asi.it\/en\/planets-stars-universe\/cosmology\/lisa\/","title":{"rendered":"LISA"},"content":{"rendered":"<p align=\"justify\"><span lang=\"en-US\"><b>LISA (Laser Interferometer Space Antenna) is the ESA\u2019s future mission aimed at detecting gravitational waves from space, which involves manufacturing, launching and operating a constellation of three satellites which are millions of kilometers away from each other<\/b><\/span><!--more--><\/p>\r\n<span lang=\"en-US\">The field of gravitational waves was chosen by the ESA already in 2013, as the subject of the third Large Mission (L3) of its \u201cCosmic Vision 2015- 2025\u201d scientific programme, but the definition activities of the mission started only in 2016, following the success of the predecessor<\/span><a class=\"western\" href=\"https:\/\/www.asi.it\/esplorazione\/cosmologia\/lisa-pathfinder\/\"><span style=\"color: #0054b0;\"><span lang=\"en-US\">\u00a0LISA Pathfinder<\/span><\/span><\/a><span lang=\"en-US\">\u00a0(LISA-PF) and the first detection of gravitational waves from Earth.<\/span>\r\n\r\n<span lang=\"en-US\">In fact, the concept behind LISA is the detection of gravitational waves through an interferometric measurement of the tidal deformation of the distances of a constellation of free-falling test masses, placed within satellites which are millions of kilometers away from each other. LISA-PF\u2019s measurements proved, beyond all optimistic expectations, that it\u2019s possible to obtain this pure inertial motion (the free fall) in space and, therefore, gave the green light to start the development of the space observatory.<\/span>\r\n\r\n<span lang=\"en-US\">LISA will be able to observe low-frequency gravitational waves, which can\u2019t be detected with ground-based interferometers due to the gravitational disturbance of the terrestrial environment, thereby broadening the spectrum of this new cosmic dimension. These waves are emitted by huge sources, which release huge quantities of energy and will be visible, thanks to their intensity, up to the last border of the Universe: this way, gravitational astronomy will also become a cosmological instrument.<\/span>\r\n\r\n<span lang=\"en-US\">LISA\u2019s instruments will be designed by a consortium of European institutes, guided by a German PI (the <\/span><span style=\"color: #1f4e79;\"><span lang=\"en-US\">LISA Consortium)<\/span><\/span><span lang=\"en-US\">. It will very closely cooperate with the ESA, which will be in charge of the satellites and the overall management of the project. The manufacturing will be entrusted to highly-specialized aerospace companies. <\/span>\r\n\r\n<span lang=\"en-US\">In view of the essential contribution given by Italy to LISA-PF, the role played by the national scientific and industrial community within the LISA Consortium is essential. The Department of Physics of the University of Trento is a member of the consortium and is offering its contribution to defining LISA\u2019s overall architecture, to the activities of the ESA\u2019s System Engineering Office and to developing the inertial sensor for the mission, the Gravitational Reference Sensor (GRS), based on LISA-PF\u2019s sensor, which was developed and manufactured in Italy. <\/span>\r\n\r\n<span lang=\"en-US\">The LISA mission falls within the framework of the <\/span><span style=\"color: #1f4e79;\"><span lang=\"en-US\">ESA scientific programme<\/span><\/span><span lang=\"en-US\">, to which Italy contributes about 13%. <\/span>","protected":false},"excerpt":{"rendered":"<p>LISA (Laser Interferometer Space Antenna) is the ESA\u2019s future mission aimed at detecting gravitational waves from space, which involves manufacturing, launching and operating a constellation of three satellites which are [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":5295,"parent":16565,"menu_order":111,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-16784","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - 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