Rchr
J-GLOBAL ID：201401026724017034
Update date: Jun. 24, 2024
Namikawa Toshiya
ナミカワ トシヤ | Namikawa Toshiya
Affiliation and department：
Job title：
Project Assistant Professor
Research field (2)：
Astronomy
, Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research keywords (6)：
cosmic birefringence
, Cosmic Reionization
, Cosmic Microwave Background
, Gravitational Waves
, Gravitational lensing
, Cosmology
Research theme for competitive and other funds (4)：
- 2022 - 2025 宇宙マイクロ波背景放射を用いた原始重力波検証における高次相関関数の解析手法の確立
- 2018 - 2021 Searching for the primordial gravitational waves by removing contaminants from CMB lensing
- 2014 - 2016 Probing fundamental issues in cosmology with a measurement of weak lensing through CMB observations
- 2013 - 2015 Cosmology from weak gravitational lensing of Cosmic Microwave Background
Papers (109)：
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Toshiya Namikawa, Lonappan, A.I., Baccigalupi, C., Bartolo, N., Beck, D., Benabed, K., Challinor, A., Diego-Palazuelos, P., Errard, J., Farrens, S., et al. LiteBIRD science goals and forecasts: improving sensitivity to inflationary gravitational waves with multitracer delensing. JCAP. 2024. 06. 010-010
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Fumihiro Naokawa, Toshiya Namikawa, Kai Murai, Ippei Obata, Kohei Kamada. $π$ phase ambiguity of cosmic birefringence. 2024
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Emilie Hertig, Kevin Wolz, Toshiya Namikawa, Antón Baleato Lizancos, Susanna Azzoni, Irene Abril-Cabezas, David Alonso, Carlo Baccigalupi, Erminia Calabrese, Anthony Challinor, et al. The Simons Observatory: Combining cross-spectral foreground cleaning with multi-tracer $B$-mode delensing for improved constraints on inflation. 2024
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Niall MacCrann, Frank J. Qu, Toshiya Namikawa, Boris Bolliet, Hongbo Cai, Erminia Calabrese, Steve K. Choi, Omar Darwish, Simone Ferraro, Yilun Guan, et al. The Atacama Cosmology Telescope: Reionization kSZ trispectrum methodology and limits. 2024
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Toshiya Namikawa. Exact CMB B-mode power spectrum from anisotropic cosmic birefringence. 2024
ｍore...
MISC (13)：
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Neelima Sehgal, Simone Aiola, Yashar Akrami, Kaustuv moni Basu, Michael Boylan-Kolchin, Sean Bryan, Caitlin M Casey, Sébastien Clesse, Francis-Yan Cyr-Racine, Luca Di Mascolo, et al. CMB-HD: Astro2020 RFI Response. 2020
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Kevork Abazajian, Graeme Addison, Peter Adshead, Zeeshan Ahmed, Steven W. Allen, David Alonso, Marcelo Alvarez, Mustafa A. Amin, Adam Anderson, Kam S. Arnold, et al. CMB-S4 Decadal Survey APC White Paper. Bull.Am.Astron.Soc. 2019. 51. 7. 209
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Maximilian H. Abitbol, Shunsuke Adachi, Peter Ade, James Aguirre, Zeeshan Ahmed, Simone Aiola, Aamir Ali, David Alonso, Marcelo A. Alvarez, Kam Arnold, et al. The Simons Observatory: Astro2020 Decadal Project Whitepaper. Bull. Am. Astron. Soc. 2019. 51. 147
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Kevork Abazajian, Graeme Addison, Peter Adshead, Zeeshan Ahmed, Steven W. Allen, David Alonso, Marcelo Alvarez, Adam Anderson, Kam S. Arnold, Carlo Baccigalupi, et al. CMB-S4 Science Case, Reference Design, and Project Plan. 2019
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Neelima Sehgal, Simone Aiola, Yashar Akrami, Kaustuv Basu, Michael Boylan-Kolchin, Sean Bryan, Sebastien Clesse, Francis-Yan Cyr-Racine, Luca Di Mascolo, Simon Dicker, et al. CMB-HD: An Ultra-Deep, High-Resolution Millimeter-Wave Survey Over Half the Sky. Bulletin of the American Astronomical Society. 2019. 51. 7. 6
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Books (1)：
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宇宙マイクロ波背景輻射の弱い重力レンズを用いた宇宙論:現状と将来の展望
天文月報 2013
Lectures and oral presentations (59)：
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New Probe of Inflationary Gravitational Waves: Cross-Correlations of Lensed Primary CMB B -Modes with Large-Scale Structure
(CosPA 2024 2024)
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Probing time-evolution of isotropic cosmic birefringence by ALPs
(IFPU Focus Week 2024)
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Constraints on anisotropic cosmic birefringence
(IFPU Focus Week 2024)
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Cosmic birefringence tomography
(Astrophysics Seminar, Tor Vergata Rome University 2024)
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Cosmic birefringence tomography
(iTHEMS Cosmology Forum 2024)
ｍore...
Works (3)：
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https://github.com/ACTCollaboration/cosmicbirefringence
Toshiya Namikawa
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https://github.com/simonsobs/delensing
Toshiya Namikawa
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https://toshiyan.github.io/clpdoc/html/
Toshiya Namikawa
Education (3)：
- 2010 - 2013 The University of Tokyo Graduate School of Science Department of Physics
- 2008 - 2010 The University of Tokyo Graduate School of Science Department of Physics
- 2004 - 2008 Kyoto University Faculty of Science Faculty of Science
Work history (6)：
Awards (3)：
- 2021/06 - The Royal Society of London for Improving Natural Knowledge Reserve List for the Royal Society University Research Fellowship
- 2013/06 - International Conference of Cosmic Microwave Background Best Poster Award
- 2013/03 - 東京大学 日本学生支援機構 特に優れた業績による全額返還免除
Association Membership(s) (1)：
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