Phys. Rev. D
70,
042003
(2004)
[17 pages]
Coincidence analysis to search for inspiraling compact binaries using TAMA300 and LISM data
Hirotaka Takahashi et al. (TAMA Collaboration and LISM Collaboration)
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Hirotaka Takahashi1,2,3,*, Hideyuki Tagoshi1, Masaki Ando4, Koji Arai5, Peter Beyersdorf5, Nobuyuki Kanda6, Seiji Kawamura5, Norikatsu Mio7, Shinji Miyoki8, Shigenori Moriwaki7, Kenji Numata4, Masatake Ohashi8, Misao Sasaki3, Shuichi Sato5, Ryutaro Takahashi5, Daisuke Tatsumi5, Yoshiki Tsunesada5, Akito Araya9, Hideki Asada10, Youich Aso4, Mark A. Barton8, Masa-Katsu Fujimoto5, Mitsuhiro Fukushima5, Toshifumi Futamase11, Tomiyoshi Haruyama12, Kazuhiro Hayama13, Gerhard Heinzel5,†, Gen’ichi Horikoshi12,‡, Yukiyoshi Iida4, Kunihito Ioka1, Hideki Ishitsuka8, Norihiko Kamikubota12, Kunihiko Kasahara8, Keita Kawabe4, Nobuki Kawashima14, Yasufumi Kojima15, Kazuhiro Kondo8, Yoshihide Kozai5, Kazuaki Kuroda8, Namio Matsuda16, Kazuyuki Miura17, Osamu Miyakawa8,§, Shoken Miyama5, Mitsuru Musha18, Shigeo Nagano5, Ken’ichi Nakagawa18, Takashi Nakamura19, Hiroyuki Nakano6, Ken-ichi Nakao6, Yuhiko Nishi4, Yujiro Ogawa12, Naoko Ohishi5, Akira Okutomi8, Ken-ichi Oohara20, Shigemi Otsuka4, Yoshio Saito12, Nobuaki Sato12, Hidetsugu Seki4, Naoki Seto1, Masaru Shibata21, Takakazu Shintomi12, Kenji Soida4, Kentaro Somiya7, Toshikazu Suzuki12, Akiteru Takamori4, Shuzo Takemoto19, Kohei Takeno7, Takahiro Tanaka19, Toru Tanji7, Shinsuke Taniguchi4, Colin T. Taylor8, Souichi Telada22, Kuniharu Tochikubo4, Takayuki Tomaru12, Yoji Totsuka12, Kimio Tsubono4, Nobuhiro Tsuda23, Takashi Uchiyama8, Akitoshi Ueda5, Ken-ichi Ueda18, Fumihiko Usui21, Koichi Waseda5, Yuko Watanabe17, Hiromi Yakura17, Kazuhiro Yamamoto8, Akira Yamamoto12, Toshitaka Yamazaki5, Tatsuo Yoda4, and Zong-Hong Zhu5
1Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
2Graduate School of Science and Technology, Niigata University, Niigata, Niigata 950-2181, Japan
3Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
4Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
5National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan
6Department of Physics, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan
7Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
8Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
9Earthquake Research Institute, University of Tokyo, Bunkyo-ku, Tokyo 113-0032, Japan
10Faculty of Science and Technology, Hirosaki University, Hirosaki, Aomori 036-8561, Japan
11Astronomical Institute, Tohoku University, Sendai, Miyagi 980-8578, Japan
12High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
13Department of Astronomy, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
14Department of Physics, Kinki University, Higashi-Osaka, Osaka 577-8502, Japan
15Department of Physics, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
16Department of Materials Science and Engineering, Tokyo Denki University, Chiyoda-ku, Tokyo 101-8457, Japan
17Department of Physics, Miyagi University of Education, Aoba Aramaki, Sendai 980-0845, Japan
18Institute for Laser Science, University of Electro-Communications, Chofugaoka, Chofu, Tokyo 182-8585, Japan
19Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
20Department of Physics, Niigata University, Niigata, Niigata 950-2102, Japan
21Graduate School of Arts and Sciences, University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
22National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8563, Japan
23Precision Engineering Division, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
(TAMA Collaboration and LISM Collaboration)
Received 27 March 2004; published 26 August 2004
Japanese laser interferometric gravitational wave detectors, TAMA300 and LISM, performed a coincident observation during 2001. We perform a coincidence analysis to search for inspiraling compact binaries. The length of data used for the coincidence analysis is 275 hours when both TAMA300 and LISM detectors are operated simultaneously. TAMA300 and LISM data are analyzed by matched filtering, and candidates for gravitational wave events are obtained. If there is a true gravitational wave signal, it should appear in both data of detectors with consistent waveforms characterized by masses of stars, amplitude of the signal, the coalescence time and so on. We introduce a set of coincidence conditions of the parameters, and search for coincident events. This procedure reduces the number of fake events considerably, by a factor ∼10-4 compared with the number of fake events in single detector analysis. We find that the number of events after imposing the coincidence conditions is consistent with the number of accidental coincidences produced purely by noise. We thus find no evidence of gravitational wave signals. We obtain an upper limit of 0.046 [1/h] (C.L.=90%) to the galactic event rate within 1 kpc from the Earth. The method used in this paper can be applied straightforwardly to the case of coincidence observations with more than two detectors with arbitrary arm directions.
© 2004 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.70.042003
DOI:
10.1103/PhysRevD.70.042003
PACS:
95.85.Sz, 04.80.Nn, 07.05.Kf, 95.55.Ym
*Email address: hirotaka@vega.ess.sci.osaka-u.ac.jp †Currently at Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Inst.) Institut Hannover, Am kleinen Felde 30, D-30167 Hannover, Germany. ‡Deceased. §Currently at Department of Physics, California Institute of Technology, Pasadena, CA 91125, USA.
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