Cusack, B JMcClelland, DavidScott, Susan MSearle, AntonyHeefner, JHeurs, MHough, JIvanov, A2015-12-132015-12-130031-9007http://hdl.handle.net/1885/80088We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multidetector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are the first directKeywords: Coherent multidetector analysis; Gravitational waves; Gravitational-wave emission; Gravitational-wave signals; Interferometric detectors; Radio observation; Radio pulsars; Strain limit; Upper limits; Gravitation; Gravity waves200510.1103/PhysRevLett.94.1811032016-06-14