KAGRA 向后-O5 引力波天文学的十年升级策略
广义相对论与量子宇宙学
2025-08-06 v1 天体物理仪器与方法
摘要
KAGRA 联盟已探讨了面向 KAGRA 引力波探测器的十年升级方案，考虑 14 种升级选项，涉及镜面质量、量子噪声消除技术以及 cryogenic 悬停质量的水平。我们聚焦于关键目标，如致密二进制合并的参量估计、二进制中子星后合并信号以及连续引力波，对这些配置的科学潜力进行评估。我们并非致力于均匀改善所有科学案例，而是聚焦于最敏感于探测器配置的案例。基于所需硬件开发、相关研发工作、成本和风险，对技术可行性进行了评估。我们的研究发现，旨在覆盖约 200 Hz 以上宽频段灵敏度的高频升级方案，在科学回报与技术可行性之间提供了最佳平衡。该升级将使 LIGO-Virgo-KAGRA 网络在 100 Mpc 处实现二进制中子星合并的 sky 局限精度小于 0.5 平方度，并将相对于无 KAGRA 网络的中位值下潮变形参数测量精度提高约 10%。
引用
@article{arxiv.2508.03392,
title = {Decadal upgrade strategy for KAGRA toward post-O5 gravitational-wave astronomy},
author = {KAGRA Collaboration and T. Akutsu and M. Ando and M. Aoumi and A. Araya and Y. Aso and L. Baiotti and R. Bajpai and K. Cannon and A. H. -Y. Chen and D. Chen and H. Chen and A. Chiba and C. Chou and M. Eisenmann and K. Endo and T. Fujimori and S. Garg and D. Haba and S. Haino and R. Harada and H. Hayakawa and K. Hayama and S. Fujii and Y. Himemoto and N. Hirata and C. Hirose and H. -F. Hsieh and H. -Y. Hsieh and C. Hsiung and S. -H. Hsu and K. Ide and R. Iden and S. Ikeda and H. Imafuku and R. Ishikawa and Y. Itoh and M. Iwaya and H-B. Jin and K. Jung and T. Kajita and I. Kaku and M. Kamiizumi and N. Kanda and H. Kato and T. Kato and R. Kawamoto and S. Kim and C. Kim and K. Kobayashi and K. Kohri and K. Kokeyama and K. Komori and A. K. H. Kong and T. Koyama and J. Kume and S. Kuroyanagi and S. Kuwahara and K. Kwak and S. Kwon and H. W. Lee and R. Lee and S. Lee and K. L. Li and L. C. -C. Lin and E. -T. -Lin and Y. -C. Lin and G. C. Liu and K. Maeda and M. Meyer-Conde and Y. Michimura and K. Mitsuhashi and O. Miyakawa and S. Miyoki and S. Morisaki and Y. Moriwaki and M. Murakoshi and K. Nakagaki and K. Nakamura and H. Nakano and T. Narikawa and L. Naticchioni and L. Nguyen Quynh and Y. Nishino and A. Nishizawa and K. Obayashi and M. Ohashi and M. Onishi and K. Oohara and S. Oshino and R. Ozaki and M. A. Page and K. -C. Pan and B. -J. Park and J. Park and F. E. Pena Arellano and N. Ruhama and S. Saha and K. Sakai and Y. Sakai and R. Sato and S. Sato and Y. Sato and Y. Sato and T. Sawada and Y. Sekiguchi and N. Sembo and L. Shao and Z. -H. Shi and R. Shimomura and H. Shinkai and S. Singh and K. Somiya and I. Song and H. Sotani and Y. Sudo and K. Suzuki and M. Suzuki and H. Tagoshi and K. Takada and H. Takahashi and R. Takahashi and A. Takamori and S. Takano and H. Takeda and K. Takeshita and M. Tamaki and K. Tanaka and S. J. Tanaka and A. Taruya and T. Tomaru and T. Tomura and S. Tsuchida and N. Uchikata and T. Uchiyama and T. Uehara and K. Ueno and T. Ushiba and H. Wang and T. Washimi and C. Wu and H. Wu and K. Yamamoto and T. Yamamoto and T. S. Yamamoto and R. Yamazaki and Y. Yang and S. -W. Yeh and J. Yokoyama and T. Yokozawa and H. Yuzurihara and Z. -C. Zhao and X. Zhu and Z. -H. Zhu},
journal= {arXiv preprint arXiv:2508.03392},
year = {2025}
}