Hattori Kohei 服部公平

Researcher Number	20895627
Affiliation (Current)	2025: 統計数理研究所, 統計思考院, 助教
Affiliation (based on the past Project Information) *help	2021 – 2024: 統計数理研究所, 統計思考院, 助教
Review Section/Research Field	Principal Investigator Basic Section 16010:Astronomy-related / Science and Engineering
Keywords	Principal Investigator 銀河系 / 恒星系力学 / 位置天文学 / 銀河系力学 / 銀河考古学 / 機械学習 / 恒星化学 / 大規模粗悪データ / Gaia衛星 / 銀河力学 … More / 大規模データ / 恒星軌道 / runaway star / 化学組成 Less

Research Projects
(3 results)
Research Products
(12 results)

Gaiaの位置天文データと粗悪なスペクトルから探る、銀河系と矮小銀河の衝突合体史Principal Investigator
- Principal Investigator
  
  服部公平
- Project Period (FY)
  2024 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  The Institute of Statistical Mathematics
ガイアデータを用いた高速度星の探索と、ダストで隠された星形成領域の元素組成の決定Principal Investigator
- Principal Investigator
  
  服部公平
- Project Period (FY)
  2021 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  The Institute of Statistical Mathematics
矮小銀河残骸から再現する銀河系の歴史年表：位相空間に隠された力学時計の探求Principal Investigator
- Principal Investigator
  
  服部公平
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 16010:Astronomy-related
- Research Institution
  The Institute of Statistical Mathematics

All 2024 2023 2022 2021

All Journal Article Presentation

[Journal Article] Finding r-II Sibling Stars in the Milky Way with the Greedy Optimistic Clustering Algorithm2023
- Author(s)
  Hattori Kohei、Okuno Akifumi、Roederer Ian U.
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 946 Issue: 1 Pages: 48-48
- DOI
  10.3847/1538-4357/acb93b
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13965, KAKENHI-PROJECT-21K17718, KAKENHI-PUBLICLY-21H00053
[Journal Article] Probability of Forming Gaps in the GD-1 Stream by Close Encounters of Globular Clusters2022
- Author(s)
  Doke Yuka、Hattori Kohei
- Journal Title
  
  The Astrophysical Journal
  
  Volume: 941 Issue: 2 Pages: 129-129
- DOI
  10.3847/1538-4357/aca090
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K13965, KAKENHI-PUBLICLY-21H00053
[Journal Article] Action-based distribution function modelling for constraining the shape of the Galactic dark matter halo2021
- Author(s)
  Hattori Kohei、Valluri Monica、Vasiliev Eugene
- Journal Title
  
  Monthly Notices of the Royal Astronomical Society
  
  Volume: 508 Issue: 4 Pages: 5468-5492
- DOI
  10.1093/mnras/stab2898
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PUBLICLY-21H00053, KAKENHI-PROJECT-21K13965
[Presentation] Formation history of the Milky Way inferred from local stellar halo substructure2024
- Author(s)
  Kohei Hattori
- Organizer
  Dark Matter in the Universe: The Present and Future of Galactic Archaeology and Near-field Cosmology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13965
[Presentation] 銀河系ハローの化学動力学2024
- Author(s)
  服部公平
- Organizer
  天の川銀河研究会2024
- Data Source
  KAKENHI-PROJECT-21K13965
[Presentation] Gaia XPスペクトルから推定する化学組成情報2024
- Author(s)
  服部公平
- Organizer
  天文学会春季年会
- Data Source
  KAKENHI-PROJECT-21K13965
[Presentation] 誤差の大きなデータに対するクラスタリング手法と天文学データへの応用2023
- Author(s)
  服部公平
- Organizer
  統計関連学会連合大会
- Data Source
  KAKENHI-PROJECT-21K13965
[Presentation] 銀河系の極限環境での星形成2023
- Author(s)
  服部公平
- Organizer
  新学術領域「星・惑星形成」2023年度大研究会
- Data Source
  KAKENHI-PROJECT-21K13965
[Presentation] ハロー星の軌道クラスタリング2022
- Author(s)
  服部公平
- Organizer
  天の川銀河研究会
- Data Source
  KAKENHI-PROJECT-21K13965
[Presentation] Greedy Optimistic Clustering: A clustering method for noisy data sets2022
- Author(s)
  Kohei Hattori
- Organizer
  Data Science in Astronomy
- Data Source
  KAKENHI-PROJECT-21K13965
[Presentation] ハロー星の軌道クラスタリング2022
- Author(s)
  服部公平
- Organizer
  天の川銀河研究会
- Data Source
  KAKENHI-PUBLICLY-21H00053
[Presentation] Greedy Optimistic Clustering: A clustering method for noisy data sets2022
- Author(s)
  Kohei Hattori
- Organizer
  Data Science in Astronomy
- Data Source
  KAKENHI-PUBLICLY-21H00053

Hattori Kohei 服部 公平

Research Projects

Research Products

Gaiaの位置天文データと粗悪なスペクトルから探る、銀河系と矮小銀河の衝突合体史Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

ガイアデータを用いた高速度星の探索と、ダストで隠された星形成領域の元素組成の決定Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

矮小銀河残骸から再現する銀河系の歴史年表：位相空間に隠された力学時計の探求Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Finding r-II Sibling Stars in the Milky Way with the Greedy Optimistic Clustering Algorithm2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Probability of Forming Gaps in the GD-1 Stream by Close Encounters of Globular Clusters2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Action-based distribution function modelling for constraining the shape of the Galactic dark matter halo2021

Author(s)

Journal Title

DOI

Data Source

[Presentation] Formation history of the Milky Way inferred from local stellar halo substructure2024

Author(s)

Organizer

Data Source

[Presentation] 銀河系ハローの化学動力学2024

Author(s)

Organizer

Data Source

[Presentation] Gaia XPスペクトルから推定する化学組成情報2024

Author(s)

Organizer

Data Source

[Presentation] 誤差の大きなデータに対するクラスタリング手法と天文学データへの応用2023

Author(s)

Organizer

Data Source

[Presentation] 銀河系の極限環境での星形成2023

Author(s)

Organizer

Data Source

[Presentation] ハロー星の軌道クラスタリング2022

Author(s)

Organizer

Data Source

[Presentation] Greedy Optimistic Clustering: A clustering method for noisy data sets2022

Author(s)

Organizer

Data Source

[Presentation] ハロー星の軌道クラスタリング2022

Author(s)

Organizer

Data Source

[Presentation] Greedy Optimistic Clustering: A clustering method for noisy data sets2022

Author(s)

Organizer

Data Source

Hattori Kohei 服部公平