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

Ando Masaki

Kojima Yasufumi

Arai Koji

Aso Youichi

Beyersdorf Peter

Hayama Kazuhiro

Iida Yukiyoshi

Kanda Nobuyuki

Kawamura Seiji

Kondo Kazuhiro

Mio Norikatsu

Miyoki Shinji

Moriwaki Shigenori

Nagano Shigeo

Numata Kenji

Sato Shuichi

Somiya Kentaro

Tagoshi Hideyuki

Takahashi Hirotaka

Takahashi Ryutaro

Tatsumi Daisuke

Tsunesada Yoshiki

Zhu Zong-Hong

Akutsu Tomomi

Akutsu Tomotada

Araya Akito

Asada Hideki

Barton Mark A.

Fujiki Youhei

Fujimoto Masa-Katsu

Fujita Ryuichi

Fukushima Mitsuhiro

Futamase Toshifumi

Hamuro Yusaku

Haruyama Tomiyoshi

Hayakawa Hideaki

Heinzel Gerhard

Horikoshi Gen'ichi

Iguchi Hideo

Ioka Kunihito

Ishitsuka Hideki

Kamikubota Norihiko

Kaneyama Takaharu

Karasawa Yoshikazu

Kasahara Kunihiko

Kasai Taketoshi

Katsuki Mayu

Kawabe Keita

Kawamura Mari

Kawashima Nobuki

Kawazoe Fumiko

Kokeyama Keiko

Kozai Yoshihide

Kudoh Hideaki

Kuroda Kazuaki

Kuwabara Takashi

Matsuda Namio

Miura Kazuyuki

Miyakawa Osamu

Miyama Shoken

Mizusawa Hiromi

Musha Mitsuru

Nagayama Yoshitaka

Nakagawa Ken'ichi

Nakamura Takashi

Nakano Hiroyuki

Nakao Ken-ichi

Nishi Yuhiko

Ogawa Yujiro

Ohashi Masatake

Ohishi Naoko

Okutomi Akira

Oohara Ken-ichi

Otsuka Shigemi

Saito Yoshio

Sakata Shihori

Sasaki Misao

Sato Kouichi

Sato Nobuaki

Sato Youhei

Seki Hidetsugu

Sekido Aya

Seto Naoki

Shibata Masaru

Shinkai Hisaaki

Shintomi Takakazu

Soida Kenji

Suzuki Toshikazu

Takamori Akiteru

Takemoto Shuzo

Takeno Kohei

Tanaka Takahiro

Taniguchi Keisuke

Taniguchi Shinsuke

Tanji Toru

Taylor C. T.

Telada Souichi

Tochikubo Kuniharu

Tokunari Masao

Tomaru Takayuki

Tsubono Kimio

Tsuda Nobuhiro

Uchiyama Takashi

Ueda Akitoshi

Ueda Ken-ichi

Usui Fumihiko

Waseda Koichi

Watanabe Yuko

Yakura Hiromi

Yamamoto Akira

Yamamoto Kazuhiro

Yamazaki Toshitaka

Physical Review D

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 nonstationary 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. In addition, in order to interpret the event candidates from an astronomical viewpoint, we performed a Monte-Carlo simulation with an assumed Galactic event distribution model and with burst waveforms obtained from numerical simulations of stellar-core collapses. We set an upper limit of 5.0×103 events/sec on the burst gravitational wave event rate in our Galaxy with a confidence level of 90%. This work shows prospects on the search for burst gravitational waves, by establishing an analysis scheme for the observation data from an interferometric gravitational wave detector.

英語

American Physical Society

Copyright (c) 2005 The American Physical Society.

[NCID] AA00773624

[DOI] http://dx.doi.org/10.1103/PhysRevD.71.082002

[ISSN] 1550-7998

[DOI] 10.1103/PhysRevD.71.082002