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The physical mechanisms responsible for pulsar timing glitches are thought toexcite quasi-normal mode oscillations in their parent neutron star that coupleto gravitational wave emission. In August 2006, a timing glitch was observed inthe radio emission of PSR B0833-45, the Vela pulsar. At the time of the glitch,the two co-located Hanford gravitational wave detectors of the LaserInterferometer Gravitational-wave observatory (LIGO) were operational andtaking data as part of the fifth LIGO science run (S5). We present the firstdirect search for the gravitational wave emission associated with oscillationsof the fundamental quadrupole mode excited by a pulsar timing glitch. Nogravitational wave detection candidate was found. We place Bayesian 90%confidence upper limits of 6.3e-21 to 1.4e-20 on the peak intrinsic strainamplitude of gravitational wave ring-down signals, depending on which sphericalharmonic mode is excited. The corresponding range of energy upper limits is5.0e44 to 1.3e45 erg.

A search for gravitational waves associated with the August 2006 timing glitch of the Vela pulsar