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Reference.org
Allegro gravitational-wave detector
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<p>Allegro was a ground-based, cryogenic resonant Weber bar, <a href="/facts/Gravitational-wave_detector/5PaoAqBg">gravitational-wave detector</a> run by Warren Johnson, et al. at <a href="/facts/Louisiana_State_University/yg8S4Tyy">Louisiana State University</a> in <a href="/facts/Baton_Rouge/21SGK7VC">Baton Rouge</a>, <a href="/facts/Louisiana/2GvfFcKE">Louisiana</a>. The detector was commissioned in the early 1990s, and was decommissioned in 2008. </p>