Search for a stochastic background of 100-MHz gravitational waves with laser interferometers

被引：84

作者：

Akutsu, Tomotada ^{[1
]}

Kawamura, Seiji ^{[2
]}

Nishizawa, Atsushi ^{[3
]}

Arai, Koji ^{[2
]}

Yamamoto, Kazuhiro ^{[2
]}

Tatsumi, Daisuke ^{[2
]}

Nagano, Shigeo ^{[4
]}

Nishida, Erina ^{[5
]}

Chiba, Takeshi ^{[6
]}

Takahashi, Ryuichi ^{[7
]}

Sugiyama, Naoshi ^{[7
]}

Fukushima, Mitsuhiro ^{[2
]}

Yamazaki, Toshitaka ^{[2
]}

Fujimoto, Masa-Katsu ^{[2
]}

机构：

[1] Univ Tokyo, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan

[2] Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[3] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan

[4] Natl Inst Informat & Commun Technol, Koganei, Tokyo 1848795, Japan

[5] Ochanomizu Univ, Grad Sch Humanities & Sci, Bunkyo Ku, Tokyo 1128610, Japan

[6] Nihon Univ, Coll Humanities & Sci, Dept Phys, Tokyo 1568550, Japan

[7] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648602, Japan

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.101.101101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This Letter reports the results of a search for a stochastic background of gravitational waves (GW) at 100 MHz by laser interferometry. We have developed a GW detector, which is a pair of 75-cm baseline synchronous recycling (resonant recycling) interferometers. Each interferometer has a strain sensitivity of similar to 10(-16) Hz(-1/2) at 100 MHz. By cross-correlating the outputs of the two interferometers within 1000 seconds, we found h(100)(2)Omega(gw)< 6x10(25) to be an upper limit on the energy density spectrum of the GW background in a 2-kHz bandwidth around 100 MHz, where a flat spectrum is assumed.

引用

页数：4

共 14 条

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Nishizawa, Atsushi
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