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

We present data-analysis schemes and results of observations with the TAMA300 gravitational-wave detector, targeting burst signals from stellar-core collapse events. In analyses for burst gravitational waves, the detection and fake-reduction schemes are different from well-investigated ones for a chirp-wave analysis, because precise waveform templates are not available. We used an excess-power filter for the extraction of gravitational-wave candidates, and developed two methods for the reduction of fake events caused by non-stationary noises of the detector. These analysis schemes were applied to real data from the TAMA300 interferometric gravitational wave detector. As a result, 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-wave event rate in our Galaxy with a confidence level of 90%. This work sets a milestone and prospects on the search for burst gravitational waves, by establishing an analysis scheme for the observation data from an interferometric gravitational wave detector

エイゴ 2 C ニオケル ジコ ヒョウゲンリョク オ タカメル シドウ

1. はじめに/2. 目標の設定/3. 指導の実際/3.1. 指導の概要/3.2. 教科書準拠exercise/3.3. Paragraph writingの指導/1)paragraphとは何か/2)paragraph分析のための練習問題/3)Paragraph writingの知識をいかしての書き直し/4)topic sentenceを与えられてのParagraph writing/5)自分でoutlineを作るParagraph writing/4. 実践結果とその考察/5. 今後の課題/6. まと

カテイ ガクシュウ ノ テイチャク オ メザシタ エイゴ 1 ノ ジュギョウ

1. はじめに/2. 本校の英語教育/3. 指導の実際/3-1. 授業の概要/使用教材 ･GENIUS English Course I(大修館書店) ･Chicken Soup for Soul(金星堂)/3-2. それぞれの活動について/4. 結果と考察/5. おわり

オンドク レンシュウ ノ テイチャク オ メザシタ READING CHALLENGE ノ カツドウ

1.はじめに/2.本校の英語カリキュラムと生徒の特徴/2-1.カリキュラム/2-2.生徒の特徴/3.「Reading Challenge」とは/3-1.概要/3-2.「Reading Challenge」で目指したこと/4.「Reading Challenge」の実際/4-1.方法/4-2.活動のねらいと実施上の注意点/5.結果と考察/5-1.取り組み状況/5-2.音読の回数と方法/5-3.生徒の意識/5-4.問題点と今後の課題/6.終わり