Curriculum Vitaes
Profile Information
- Affiliation
- Institute of Space and Astronautical Science, Japan Aerospace Exploration AgencyGraduate School of Science Department of Astronomy, The University of Tokyo
- J-GLOBAL ID
- 200901049964309113
- researchmap Member ID
- 5000001980
- External link
Research Interests
5Research Areas
2Research History
1-
Oct, 2017 - Present
Papers
152-
Journal of Cosmology and Astroparticle Physics, 2024(12) 036-036, Dec 1, 2024Abstract Large angular scale surveys in the absence of atmosphere are essential for measuring the primordial B-mode power spectrum of the Cosmic Microwave Background (CMB). Since this proposed measurement is about three to four orders of magnitude fainter than the temperature anisotropies of the CMB, in-flight calibration of the instruments and active suppression of systematic effects are crucial. We investigate the effect of changing the parameters of the scanning strategy on the in-flight calibration effectiveness, the suppression of the systematic effects themselves, and the ability to distinguish systematic effects by null-tests. Next-generation missions such as LiteBIRD, modulated by a Half-Wave Plate (HWP), will be able to observe polarisation using a single detector, eliminating the need to combine several detectors to measure polarisation, as done in many previous experiments and hence avoiding the consequent systematic effects. While the HWP is expected to suppress many systematic effects, some of them will remain. We use an analytical approach to comprehensively address the mitigation of these systematic effects and identify the characteristics of scanning strategies that are the most effective for implementing a variety of calibration strategies in the multi-dimensional space of common spacecraft scan parameters. We verify that LiteBIRD's standard configuration yields good performance on the metrics we studied. We also present Falcons.jl, a fast spacecraft scanning simulator that we developed to investigate this scanning parameter space.
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Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 213-213, Aug 23, 2024
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Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 99-99, Aug 23, 2024
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Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 214-214, Aug 23, 2024
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Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 209-209, Aug 23, 2024
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Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 82-82, Aug 23, 2024
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Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 207-207, Aug 23, 2024
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Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, 124-124, Aug 16, 2024
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Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, 120-120, Aug 16, 2024
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Applied Optics, Aug 8, 2024
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JOURNAL OF LOW TEMPERATURE PHYSICS, 216(1-2) 119-128, Jul, 2024
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Cryogenics, 138 103795-103795, Mar, 2024
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ASTRONOMY & ASTROPHYSICS, 676(A42), Aug, 2023 Peer-reviewed
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Journal of Astronomical Telescopes, Instruments, and Systems, 9(02), Apr 19, 2023
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Journal of Astronomical Telescopes, Instruments, and Systems, 9(02), Apr 12, 2023
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Journal of Low Temperature Physics, 209(5-6) 1097-1103, Dec, 2022
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Progress of Theoretical and Experimental Physics, 2023(4), Nov 21, 2022Abstract LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics. The Japan Aerospace Exploration Agency (JAXA) selected LiteBIRD in May 2019 as a strategic large-class (L-class) mission, with an expected launch in the late 2020s using JAXA’s H3 rocket. LiteBIRD is planned to orbit the Sun–Earth Lagrangian point L2, where it will map the cosmic microwave background polarization over the entire sky for three years, with three telescopes in 15 frequency bands between 34 and 448 GHz, to achieve an unprecedented total sensitivity of $2.2\, \mu$K-arcmin, with a typical angular resolution of 0.5○ at 100 GHz. The primary scientific objective of LiteBIRD is to search for the signal from cosmic inflation, either making a discovery or ruling out well-motivated inflationary models. The measurements of LiteBIRD will also provide us with insight into the quantum nature of gravity and other new physics beyond the standard models of particle physics and cosmology. We provide an overview of the LiteBIRD project, including scientific objectives, mission and system requirements, operation concept, spacecraft and payload module design, expected scientific outcomes, potential design extensions, and synergies with other projects.
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JOURNAL OF LOW TEMPERATURE PHYSICS, Nov, 2022
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Journal of Low Temperature Physics, 209(3-4) 677-685, Sep 19, 2022
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Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, Aug 31, 2022
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Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, Aug 27, 2022
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Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, Aug 27, 2022
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JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, (4), Apr, 2022
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Journal of Cosmology and Astroparticle Physics, 2022(4), Apr, 2022
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SPACE TELESCOPES AND INSTRUMENTATION 2022: OPTICAL, INFRARED, AND MILLIMETER WAVE, 12180, 2022
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Applied Optics, 60(33) 10462-10467, Nov, 2021
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Journal of Low Temperature Physics, 199(3-4) 1107-1117, May 1, 2020 Peer-reviewed
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Proceedings of SPIE - The International Society for Optical Engineering, 11443, 2020
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Proceedings of the 31st Symposium on Space Terahertz Technology, ISSTT 2020, 116, 2020
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Proceedings of SPIE - The International Society for Optical Engineering, 11443, 2020
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Proceedings of SPIE - The International Society for Optical Engineering, 11453, 2020
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On-site performance of GroundBIRD, a CMB polarization telescope for large angular scale observationsProceedings of SPIE - The International Society for Optical Engineering, 11445, 2020
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Proceedings of SPIE - The International Society for Optical Engineering, 11453, 2020
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Proceedings of SPIE - The International Society for Optical Engineering, 11443, 2020
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Proceedings of SPIE - The International Society for Optical Engineering, 11443, 2020
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Journal of Low Temperature Physics, 200(5-6) 384-391, Sep 1, 2020 Peer-reviewed
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Journal of Low Temperature Physics, 199(1-2) 339-347, Apr, 2020 Peer-reviewed
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Journal of Low Temperature Physics, 199(1-2) 250-257, Apr, 2020 Peer-reviewed
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Journal of Low Temperature Physics, 199(3-4) 730-736, May 1, 2020 Peer-reviewed
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IEEE Transactions on Terahertz Science and Technology, 9(6) 598-605, Nov, 2019 Peer-reviewed
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Journal of Astronomical Telescopes, Instruments, and Systems, 5(4), Oct 1, 2019 Peer-reviewed
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Journal of Low Temperature Physics, 194(5-6) 404-411, Mar 15, 2019 Peer-reviewed
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Journal of Low Temperature Physics, 194(5-6) 443-452, Mar 15, 2019 Peer-reviewed
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ISSTT 2019 - 30th International Symposium on Space Terahertz Technology, Proceedings Book, 155-156, 2019 Peer-reviewed
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Journal of Low Temperature Physics, 193(5-6) 1048-1056, Dec 1, 2018 Peer-reviewed
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Journal of Low Temperature Physics, 193(5-6) 841-850, Dec 1, 2018 Peer-reviewed
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Journal of Low Temperature Physics, 193(5-6) 976-983, Dec 1, 2018 Peer-reviewed
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Journal of Low Temperature Physics, 193(5-6) 1066-1074, Dec 1, 2018 Peer-reviewed
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Journal of Low Temperature Physics, 193(3-4) 585-592, Nov 1, 2018 Peer-reviewed
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IEEE Transactions on Applied Superconductivity, 28(4), Jun, 2018 Peer-reviewed
Misc.
215-
日本物理学会講演概要集(CD-ROM), 79(2), 2024
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日本物理学会講演概要集(CD-ROM), 79(2), 2024
Presentations
78Teaching Experience
2-
Oct, 2022 - Jan, 2023High energy astrophysics (The University of Tokyo)
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Jul, 2020 - Aug, 2020Space astronomy (sokendai)
Research Projects
9-
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Jun, 2023 - Mar, 2027
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2023 - Mar, 2027
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2023 - Mar, 2027
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Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A), Japan Society for the Promotion of Science, Apr, 2017 - Mar, 2021
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Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), Japan Society for the Promotion of Science, Jun, 2015 - Mar, 2020
Industrial Property Rights
3Social Activities
1● 指導学生等の数
1-
Fiscal Year2021年度(FY2021)Doctoral program1Master’s program1Internship students9
● 指導学生の表彰・受賞
1-
Student NameHayato TAKAKURAStudent affiliation東京大学AwardB-mode from spaceDate2019-12-5
● 専任大学名
1-
Affiliation (university)東京大学(University of Tokyo)