Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Ohashi, Masatake"'
Autor:
Katsanevas, Stavros, Sanders, Gary, Berger, Beverly, González, Gabriela, Hough, James, Kembhavi, Ajit K., McClelland, David, Ohashi, Masatake, Ricci, Fulvio, Whitcomb, Stan, Punturo, Michele, Reitze, David, Couvares, Peter, Kajita, Takaaki, Kalogera, Vicky, Lueck, Harald, Rowan, Sheila, Sathyaprakash, B. S., Shoemaker, David, Brand, Jo van den
The construction of a global network of detectors is the cornerstone to scientific success for 3rd generation gravitational wave astronomy. If carried out with a vision to the future, the third generation implementation, in its infrastructure, techno
Externí odkaz:
http://arxiv.org/abs/2111.06989
Autor:
Ushiba, Takafumi, Akutsu, Tomotada, Aso, Yoichi, Araki, Sakae, Bajpai, Rishabh, Chen, Dan, Craig, Kieran, Creus, William, Enomoto, Yutaro, Fujii, Yoshinori, Fukunaga, Masashi, Hagiwara, Ayako, Haino, Sadakazu, Hasegawa, Kunihiko, Inoue, Yuki, Izumi, Kiwamu, Kimura, Nobuhiro, Kokeyama, Keiko, Kumar, Rahul, Majorana, Ettore, Michimura, Yuta, Miyamoto, Takahiro, Miyoki, Shinji, Murakami, Iwao, Namai, Yoshikazu, Nakano, Masayuki, Ochi, Toshiro, Ohashi, Masatake, Okutomi, Koki, Saito, Yoshio, Shishido, Takaharu, Shoda, Ayaka, Somiya, Kentaro, Suzuki, Toshikazu, Takada, Suguru, Takahashi, Masahiro, Takahashi, Ryutaro, Tanaka, Hiroki, Terashima, Shinichi, Tomaru, Takayuki, Travasso, Flavio, Ueda, Ayako, Vocca, Helios, Yamada, Tomohiro, Yamamoto, Kazuhiro, Zeidler, Simon
Publikováno v:
Class. Quantum Grav. 38 085013 (2021)
We report the mirror suspension design for Large-scale Cryogenic Gravitational wave Telescope, KAGRA, during bKAGRA Phase 1. Mirror thermal noise is one of the fundamental noises for room-temperature gravitational-wave detectors such as Advanced LIGO
Externí odkaz:
http://arxiv.org/abs/2010.01889
Autor:
Uchiyama, Takashi, Miyoki, Shinji, Telada, Souichi, Yamamoto, Kazuhiro, Ohashi, Masatake, Agatsuma, Kazuhiro, Arai, Koji, Fujimoto, Masa-Katsu, Haruyama, Tomiyoshi, Kawamura, Seiji, Miyakawa, Osamu, Ohishi, Naoko, Saito, Takanori, Shintomi, Takakazu, Suzuki, Toshikazu, Takahashi, Ryutaro, Tatsumi, Daisuke
The thermal fluctuation of mirror surfaces is the fundamental limitation for interferometric gravitational wave (GW) detectors. Here, we experimentally demonstrate for the first time a reduction in a mirror's thermal fluctuation in a GW detector with
Externí odkaz:
http://arxiv.org/abs/1202.3558
Autor:
Agatsuma, Kazuhiro, Arai, Koji, Fujimoto, Masa-Katsu, Kawamura, Seiji, Kuroda, Kazuaki, Miyakawa, Osamu, Miyoki, Shinji, Ohashi, Masatake, Suzuki, Toshikazu, Takahashi, Ryutaro, Tatsumi, Daisuke, Telada, Souichi, Uchiyama, Takashi, Yamamoto, Kazuhiro, collaborators, CLIO
Publikováno v:
Class. Quantum Grav. 27 (2010) 084022
We report on the current status of CLIO (Cryogenic Laser Interferometer Observatory), which is a prototype interferometer for LCGT (Large Scale Cryogenic Gravitational-Wave Telescope). LCGT is a Japanese next-generation interferometric gravitational
Externí odkaz:
http://arxiv.org/abs/0911.3090
Autor:
Agatsuma, Kazuhiro, Uchiyama, Takashi, Yamamoto, Kazuhiro, Ohashi, Masatake, Kawamura, Seiji, Miyoki, Shinji, Miyakawa, Osamu, Telada, Souichi, Kuroda, Kazuaki
Publikováno v:
PRL 104, 040602 (2010)
We achieved for the first time a direct measurement of the thermal fluctuation of a pendulum in an off-resonant region using a laser interferometric gravitational wave detector. These measurements have been well identified for over one decade by an a
Externí odkaz:
http://arxiv.org/abs/0908.3227
Autor:
Yamamoto, Kazuhiro, Hayakawa, Hideaki, Okada, Atsushi, Uchiyama, Takashi, Miyoki, Shinji, Ohashi, Masatake, Kuroda, Kazuaki, Kanda, Nobuyuki, Tatsumi, Daisuke, Tsunesada, Yoshiki
Publikováno v:
Phys.Rev.D78:022004,2008
We investigated the noise of interferometric gravitational wave detectors due to heat energy deposited by cosmic-ray particles. We derived a general formula that describes the response of a mirror against a cosmic-ray passage. We found that there are
Externí odkaz:
http://arxiv.org/abs/0805.2387
Autor:
Tomaru, Takayuki, Tokunari, Masao, Kuroda, Kazuaki, Uchiyama, Takashi, Okutomi, Akira, Ohashi, Masatake, Kirihara, Hiroyuki, Kimura, Nobuhiro, Saito, Yoshio, Sato, Nobuaki, Shintomi, Takakazu, Suzuki, Toshikazu, Haruyama, Tomiyoshi, Miyoki, Shinji, Yamamoto, Kazuhiro, Yamamoto, Akira
A large heat load caused by thermal radiation through a metal shield pipe was observed in a cooling test of a cryostat for a prototype of a cryogenic interferometric gravitational wave detector. The heat load was approximately 1000 times larger than
Externí odkaz:
http://arxiv.org/abs/0711.0839
Autor:
Tatsumi, Daisuke, Takahashi, Ryutaro, Arai, Koji, Nakagawa, Noriyasu, Agatsuma, Kazuhiro, Yamazaki, Toshitaka, Fukushima, Mitsuhiro, Fujimoto, Masa-Katsu, Takamori, Akiteru, Bertolini, Alessandro, Sannibale, Virginio, DeSalvo, Riccardo, Marka, Szabolcs, Ando, Masaki, Tsubono, Kimio, Akutsu, Tomomi, Yamamoto, Kazuhiro, Ishitsuka, Hideki, Uchiyama, Takashi, Miyoki, Shinji, Ohashi, Masatake, Kuroda, Kazuaki, Awaya, Norichika, Kanda, Nobuyuki, Araya, Akito, Telada, Souichi, Tomaru, Takayuki, Haruyama, Tomiyoshi, Yamamoto, Akira, Sato, Nobuaki, Suzuki, Toshitaka, Shintomi, Takakazu
Publikováno v:
Class.Quant.Grav.24:S399-S404,2007
Current status of TAMA and CLIO detectors in Japan is reported in this article. These two interferometric gravitational-wave detectors are being developed for the large cryogenic gravitational wave telescope (LCGT) which is a future plan for detectin
Externí odkaz:
http://arxiv.org/abs/0704.2881
Autor:
Yamamoto, Kazuhiro, Miyoki, Shinji, Uchiyama, Takashi, Ishitsuka, Hideki, Ohashi, Masatake, Kuroda, Kazuaki, Tomaru, Takayuki, Sato, Nobuaki, Suzuki, Toshikazu, Haruyama, Tomiyoshi, Yamamoto, Akira, Shintomi, Takakazu, Numata, Kenji, Waseda, Koichi, Ito, Kazuhiko, Watanabe, Koji
Publikováno v:
Physical Review D 74, 022002 (2006)
We have measured the mechanical loss of a dielectric multilayer reflective coating (ion-beam sputtered SiO$_2$ and Ta$_2$O$_5$) in cooled mirrors. The loss was nearly independent of the temperature (4 K $\sim$ 300 K), frequency, optical loss, and str
Externí odkaz:
http://arxiv.org/abs/gr-qc/0601031
Autor:
Tomaru, Takayuki, Suzuki, Toshikazu, Miyoki, Shinji, Uchiyama, Takashi, Taylor, C. T., Yamamoto, Akira, Shintomi, Takakazu, Ohashi, Masatake, Kuroda, Kazuaki
Publikováno v:
Class.Quant.Grav. 19 (2002) 2045
We report the reduction of the thermal lensing in cryogenic sapphire mirrors, which is planed to be used in the Large scale Cryogenic Gravitational wave Telescope (LCGT) project. We measured three key parameters of sapphire substrate for thermal lens
Externí odkaz:
http://arxiv.org/abs/gr-qc/0202038