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Current status of space gravitational wave antenna DECIGO and B-DECIGO

MPS-Authors
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Kawazoe,  Fumiko
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons216870

Shibata,  Masaru
Computational Relativistic Astrophysics, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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2006.13545.pdf
(プレプリント), 675KB

ptab019.pdf
(出版社版), 518KB

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引用

Kawamura, S., Ando, M., Seto, N., Sato, S., Musha, M., Kawano, I., Yokoyama, J., Tanaka, T., Ioka, K., Akutsu, T., Takashima, T., Agatsuma, K., Araya, A., Aritomi, N., Asada, H., Chiba, T., Eguchi, S., Enoki, M., Fujimoto, M.-K., Fujita, R., Futamase, T., Harada, T., Hayama, K., Himemoto, Y., Hiramatsu, T., Hong, F.-L., Hosokawa, M., Ichiki, K., Ikari, S., Ishihara, H., Ishikawa, T., Itoh, Y., Ito, T., Iwaguchi, S., Izumi, K., Kanda, N., Kanemura, S., Kawazoe, F., Kobayashi, S., Kohri, K., Kojima, Y., Kokeyama, K., Kotake, K., Kuroyanagi, S., Maeda, K.-i., Matsushita, S., Michimura, Y., Morimoto, T., Mukohyama, S., Nagano, K., Nagano, S., Naito, T., Nakamura, K., Nakamura, T., Nakano, H., Nakao, K., Nakasuka, S., Nakayama, Y., Nakazawa, K., Nishizawa, A., Ohkawa, M., Oohara, K., Sago, N., Saijo, M., Sakagami, M., Sakai, S.-i., Sato, T., Shibata, M., Shinkai, H., Shoda, A., Somiya, K., Sotani, H., Takahashi, R., Takahashi, H., Akiteru, T., Taniguchi, K., Taruya, A., Tsubono, K., Tsujikawa, S., Ueda, A., Ueda, K.-i., Watanabe, I., Yagi, K., Yamada, R., Yokoyama, S., Yoo, C.-M., & Zhu, Z.-H. (2021). Current status of space gravitational wave antenna DECIGO and B-DECIGO. Progress of Theoretical and Experimental Physics, 2021(5):. doi:10.1093/ptep/ptab019.


引用: https://hdl.handle.net/21.11116/0000-0008-E731-C
要旨
Deci-hertz Interferometer Gravitational Wave Observatory (DECIGO) is the
future Japanese space mission with a frequency band of 0.1 Hz to 10 Hz. DECIGO
aims at the detection of primordial gravitational waves, which could be
produced during the inflationary period right after the birth of the universe.
There are many other scientific objectives of DECIGO, including the direct
measurement of the acceleration of the expansion of the universe, and reliable
and accurate predictions of the timing and locations of neutron star/black hole
binary coalescences. DECIGO consists of four clusters of observatories placed
in the heliocentric orbit. Each cluster consists of three spacecraft, which
form three Fabry-Perot Michelson interferometers with an arm length of 1,000
km. Three clusters of DECIGO will be placed far from each other, and the fourth
cluster will be placed in the same position as one of the three clusters to
obtain the correlation signals for the detection of the primordial
gravitational waves. We plan to launch B-DECIGO, which is a scientific
pathfinder of DECIGO, before DECIGO in the 2030s to demonstrate the
technologies required for DECIGO, as well as to obtain fruitful scientific
results to further expand the multi-messenger astronomy.