Atsushi J. Nishizawa

Nishizawa Atsushi | Atsushi J. Nishizawa

Affiliation and department：
Job title： Associate Professor
Homepage URL (1)： https://sites.google.com/view/ajnishizawa

Research field (3)： Statistical science , Particle, nuclear, cosmic-ray, and astrophysics - experiment , Astronomy

Research keywords (5)： photometric redshift , cosmic reionization , cluster of galaxies , machine learning , observational cosmology

Research theme for competitive and other funds (6)：

2022 - 2028 Comprehensive understanding of the formation history of the Universe
2021 - 2023 革新的画像解析法を用いた銀河のイメージング解析
2020 - 2023 すばる望遠鏡HSCの最終データを用いた宇宙の加速膨張の起源の解明
2021 - 2022 ガンマ線・低表面輝度銀河・銀河館物質から探るダークマターの素粒子的性質
2019 - 2019 Theoretical modeling of dark energy and its observational verification

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Papers (102)：

Koya Murakami, Kenji Kadota, Atsushi J. Nishizawa, Kentaro Nagamine, Ikkoh Shimizu. Differentiating warm dark matter models through 21-cm line intensity mapping: A convolutional neural network approach. Physical Review D. 2024. 110. 2
Koya Murakami, Atsushi J Nishizawa, Kentaro Nagamine, Ikko Shimizu. Impact of astrophysical effects on the dark matter mass constraint with 21 cm intensity mapping. Monthly Notices of the Royal Astronomical Society. 2024. 530. 2. 2052-2067
Yoshiki Toba, Aoi Hashiguchi, Naomi Ota, Masamune Oguri, Nobuhiro Okabe, Yoshihiro Ueda, Masatoshi Imanishi, Atsushi J. Nishizawa, Tomotsugu Goto, Bau-Ching Hsieh, et al. AGN properties of ~1 million member galaxies of galaxy groups and clusters at z < 1.4 based on the Subaru Hyper Suprime-Cam survey. The Astrophysical Journal. 2024
Takumi Shimasue, Ken Osato, Masamune Oguri, Rhythm Shimakawa, Atsushi J. Nishizawa. Line-of-sight structure of troughs identified in Subaru Hyper Suprime-Cam Year 3 weak lensing mass maps. Monthly Notices of the Royal Astronomical Society. 2024. 527. 3. 5974-5987
Hironao Miyatake, Sunao Sugiyama, Masahiro Takada, Takahiro Nishimichi, Xiangchong Li, Masato Shirasaki, Surhud More, Yosuke Kobayashi, Atsushi J. Nishizawa, Markus M. Rau, et al. Hyper Suprime-Cam Year 3 results: Cosmology from galaxy clustering and weak lensing with HSC and SDSS using the emulator based halo model. Physical Review D. 2023. 108. 12

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MISC (4)：

Keitaro Ishikawa, Tomomi Sunayama, Atsushi J. Nishizawa, Hironao Miyatake, Takahiro Nishimichi. Robustness of baryon acoustic oscillations measurements with photometric redshift uncertainties. Monthly Notices of the Royal Astronomical Society. 2023. 526. 4. 5374-5385
Markus Michael Rau, Roohi Dalal, Tianqing Zhang, Xiangchong Li, Atsushi J Nishizawa, Surhud More, Rachel Mandelbaum, Hironao Miyatake, Michael A Strauss, Masahiro Takada. Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue. Monthly Notices of the Royal Astronomical Society. 2023. 524. 4. 5109-5131
Takashi Hamana, Masato Shirasaki, Satoshi Miyazaki, Chiaki Hikage, Masamune Oguri, Surhud More, Robert Armstrong, Alexie Leauthaud, Rachel Mandelbaum, Hironao Miyatake, et al. Cosmological constraints from cosmic shear two-point correlation functions with HSC survey first-year data (vol 72, psz138, 2020). PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN. 2022. 74. 2. 488-491
Daiki Hashimoto, Atsushi J. Nishizawa, Masahiro Takada. Constraining Dark matter annihilation with Dark Energy Survey Y3 LSBG sample. arXiv. 2022. 2202.01400

Lectures and oral presentations (5)：

Hyper Suprime-Cam medium band filters
(Subaru User's meeting 2023)
Photometric redsfhit estimation for the blended object
(2022)
Impact of blending on the estimation of photometric redshift
(2022)
Constraints on the dark matter annihilation rate from the DES Y3 and Fermi LAT
(2022)
HSCサーベイによる赤方偏移0.6-3.0におけるAGN周辺銀河の特性
(日本天文学会年会講演予稿集 2017)

Education (1)：

Professional career (1)：

Work history (10)：

2022/04 - 現在 Nagoya University Institute for Advanced Research/Kobayashi Maskawa Institute
2022/04 - 現在 Gifu Shotoku Gakuen University DX Center Associate Professor
2014/05 - 2022/03 名古屋大学高等研究院非常勤講師
2013/05 - 2022/03 Nagoya University Institute for Advanced Research Designated Lecturer
2011/09 - 2014/04 東京大学カブリ数物連携宇宙研究機構

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Committee career (4)：

Awards (4)：

2023/03 - 日本天文学会欧文研究報告論文賞 GOLDRUSH. II. Clustering of galaxies at z~4-6 revealed with the half-million dropoujts over the 100 deg2 area corresponding to 1 Gpc3
2023/03 - 社団法人日本天文学会欧文研究報告論文賞 Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 quasars and luminous galaxies at 5.7<z<6.8
2021/03 - 社団法人日本天文学会欧文研究報告論文賞 Cosmology from cosmic shear power spectra with Subaru Hyper Suprime Cam first-year data
2021/03 - 日本天文学会欧文研究報告論文賞(共同受賞)

Association Membership(s) (3)：

理論天文学宇宙物理学懇談会 , Astronomical Society Japan , 日本物理学会

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