Name :
Itsuki Ogami(小上 樹)(he/him/his)
Affiliation :
National Astronomical Society of Japan, TMT project (project researcher)
the Instutute of Statistical Mathematics (visiting researcher)
Career :
Apr 2025 - present : Visiting Researcher - the Institute of Statistical Mathematics
Host Researcher: Prof. Satoshi Kuriki
Apr 2025 - present : Project Researcher - National Astronomical Observatory of Japan, TMT project
Host Researcher: Prof. Wako Aoki
Apr 2022 - Mar 2025: Associate Researcher - National Astronomical Observatory of Japan/SOKENDAI
Sep 2020 - Sep 2021: Special Inter-institutional Research Fellows - National Astronomical Observatory of Japan
Supervisor: Prof. Wako Aoki, Asst. Prof. Yutaka Komiyama
Education :
Apr 2022 - Mar 2025: The Graduate University for Advanced Studies (SOKENDAI),
Department of Astronomical Science, School of Physical Sciences (Doctor)
Supervisor: Prof. Wako Aoki
Sub-Supervisors: Assoc. Prof. Hisanori Furusawa, Asst. Prof. Miho N. Ishigaki
Apr 2020 - Mar 2022: Department of Advanced Sciences, Faculty of Science and Engineering, Hosei Univ. (Master)
Supervisor: Assoc. Prof. Mikito Tanaka
Apr 2016 - Mar 2020: Department of Advanced Sciences, Faculty of Science and Engineering, Hosei Univ. (Bachelor)
Supervisor: Assoc. Prof. Mikito Tanaka
Member :
2022 - : Group of Young Astronomers and Astrophysicists
2022 - : Group of Optical and Infrared Astronomers
2020 - : The Astronomical Society of Japan; ASJ
Science Activities :
2025 - : the member of the Euclid Consortium
2024 - : international VERA C. Rubin data rights holder
2024 - : the member of WISHES (Wide Imaging with Subaru HSC of the Euclid Sky; part of the UNIONS survey)
2024 - : the member of UNIONS (the Ultraviolet Near Infrared Optical Northern Survey)
2020 - : the member of the Subaru PFS-SSP collaboration
2020 - : the member of the Subaru HSC-SSP collaboration
Event Organizing / Magagement Activities :
Organizing Committee: Subaru Users Meeting 2025, 2025, Mitaka
Teaching Experience :
2025 (Spring semester) : "Experiments of Fundamental Sciences II (Experiments of physics)", Faculty of Science and Engineering, Hosei Univ. (Part-Time Lecturer)
2021 (Fall semester) : "Experiments of Fundamental Sciences I", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
2021 (Spring semester) : "Spacetime Physics I", Graduate School of Science and Engineering, Hosei Univ. (Teaching Assistant)
2021 (Spring semester) : "First step to Experiment and Analysis", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
2021 (Spring semester) : "Remote Sensing", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
2021 (Spring semester) : "Astro and Space Science and Observation", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
2021 (Spring semester) : "Analytical Mechanics", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
2020 (Fall semester) : "Experiments of Fundamental Sciences I", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
2020 (Spring semester) : "Laboratories of Advanced Sciences I", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
2020 (Spring semester) : "First step to Experiment and Analysis", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
2020 (Spring semester) : "Astro and Space Science and Observation", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
2020 (Spring semester) : "Analytical Mechanics", Faculty of Science and Engineering, Hosei Univ. (Teaching Assistant)
ORCID :
Github :
https://github.com/itsukiogami
Research Interests:
Galactic Archaeology / Near-Field Cosmology
Nearby Galaxies (e.g., M31, M33, M83, M101)
Globular Clusters (e.g.,NGC5466, M92)
Awards :
Oral Award (2nd prize), The Summer School for Young Astronomers and Astrophysicists 2022
Honor Students in Faculty of Science and Engineering, 2018, Hosei University
Honor Students in Faculty of Science and Engineering, 2017, Hosei University
Others :
Participant of XXXIV Canary Islands Winter School of Astrophysics: The Local Group as a benchmark for Galaxy Evolution
Telescope Time Awards :
Principal Investigator
PI of Subaru telescope proposal (S24A-103), "HSC narrow-band photometry of the M92 tidal stream", HSC classical, 1 night
PI of Subaru telescope proposal (S23B-072), "Investigating the nature of M33 stellar halo using HSC deep photometry", HSC Queue, 4.3 nights
PI of Subaru telescope proposal (S22B-107), "Probing the stellar halo in the Triangulum galaxy", HSC Queue, 1.1 nights
Co-Investigator
Co-I of Subaru telescope proposal (S25A-141), "Unveiling the origin of CEMP stars from the Local Group dwarf galaxies", HSC, 4.0 nights (PI: Yoshihisa Suzuki)
Co-I of Subaru telescope proposal (S25A-084), "Exploring the detailed structure of Antlia 2 using Subaru/HSC NB515", HSC Queue, 0.7 nights (PI: Kyosuke Sato)
Co-I of Subaru telescope proposal (S25A-021), "Completing the Legacy Imaging Survey of the Euclid Sky", HSC Queue, 2.3 nights (PI: Prof. Masamune Oguri)
Co-I of Subaru telescope proposal (S24B-080), "Extended Wide Imaging with Subaru HSC of the Euclid Sky (WISHES+)", HSC intensive, 15.1 nights,(PI: Dr. Ken Osato)
Co-I of Subaru telescope proposal (S23A-040), "Ultra-deep HSC photometry of NGC 5466 tidal tails", HSC-Q, 0.3 nights (PI: Dr. Miho N. Ishigaki)
Co-I of Subaru telescope proposal (S22A-113), "Unveiling the Galactic outer halo structure with the NGC 5466 tidal stream", HSC classical, 2 nights (PI: Dr. Miho N. Ishigaki)
Co-I of Subaru telescope proposal (S22A-100), "Nature of HI Cloud Infalling onto Isolated Dwarf Irregular Galaxy NGC 6822", FOCAS, 2 nights (PI: Prof. Yutaka Komiyama)