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We present data-analysis schemes and results of observations with the TAMA300gravitational-wave detector, targeting burst signals from stellar-core collapseevents. In analyses for burst gravitational waves, the detection andfake-reduction schemes are different from well-investigated ones for achirp-wave analysis, because precise waveform templates are not available. Weused an excess-power filter for the extraction of gravitational-wavecandidates, and developed two methods for the reduction of fake events causedby non-stationary noises of the detector. These analysis schemes were appliedto real data from the TAMA300 interferometric gravitational wave detector. As aresult, fake events were reduced by a factor of about 1000 in the best cases.The resultant event candidates were interpreted from an astronomical viewpoint.We set an upper limit of 2.2x10^3 events/sec on the burst gravitational-waveevent rate in our Galaxy with a confidence level of 90%. This work sets amilestone and prospects on the search for burst gravitational waves, byestablishing an analysis scheme for the observation data from aninterferometric gravitational wave detector

Observation results by the TAMA300 detector on gravitational wave bursts from stellar-core collapses