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  Prospects for improving the sensitivity of KAGRA gravitational wave detector

Michimura, Y., Ando, M., Capocasa, E., Enomoto, Y., Flaminio, R., Haino, S., et al. (in preparation). Prospects for improving the sensitivity of KAGRA gravitational wave detector.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-4507-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-4531-7
Genre: Paper

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1906.02866.pdf (Preprint), 169KB
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 Creators:
Michimura, Yuta, Author
Ando, Masaki, Author
Capocasa, Eleonora, Author
Enomoto, Yutaro, Author
Flaminio, Raffaele, Author
Haino, Sadakazu, Author
Hayama, Kazuhiro, Author
Hirose, Eiichi, Author
Itoh, Yousuke, Author
Kinugawa, Tomoya, Author
Komori, Kentro, Author
Leonardi, Matteo, Author
Mio, Norikatsu, Author
Nagano, Koji, Author
Nakano, Hiroyuki, Author
Nishizawa, Atsushi, Author
Sago, Norichika, Author
Shibata, Masaru1, Author              
Shinkai, Hisaaki, Author
Somiya, Kentaro, Author
Takeda, Hiroki, AuthorTanaka, Takahiro, AuthorTanioka, Satoshi, AuthorWei, Li-Wei, AuthorYamamoto, Kazuhiro, Author more..
Affiliations:
1Computational Relativistic Astrophysics, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_2541714              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM, Physics, Instrumentation and Detectors, physics.ins-det
 Abstract: KAGRA is a new gravitational wave detector which aims to begin joint observation with Advanced LIGO and Advanced Virgo from late 2019. Here, we present KAGRA's possible upgrade plans to improve the sensitivity in the decade ahead. Unlike other state-of-the-art detectors, KAGRA requires different investigations for the upgrade since it is the only detector which employs cryogenic cooling of the test mass mirrors. In this paper, investigations on the upgrade plans which can be realized by changing the input laser power, increasing the mirror mass, and injecting frequency dependent squeezed vacuum are presented. We show how each upgrade affects to the detector frequency bands and also discuss impacts on gravitational-wave science. We then propose an effective progression of upgrades based on technical feasibility and scientific scenarios.

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 Dates: 2019-06-06
 Publication Status: Not specified
 Pages: 7 pages, 3 figures, Proceedings for the Fifteenth Marcel Grossmann Meeting, Rome, July 1-7, 2018
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1906.02866
URI: http://arxiv.org/abs/1906.02866
 Degree: -

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