Personal information

United States

Activities

Employment (6)

The Institute of Statistical Mathematics: Tokyo, JP

2020-09-01 to present | Assistant Professor
Employment
Source: Self-asserted source
Kohei Hattori

National Astronomical Observatory of Japan: Tokyo, JP

2020-09-01 to present
Employment
Source: Self-asserted source
Kohei Hattori

Carnegie Mellon University: Pittsburgh, PA, US

2019-08-01 to 2020-08-31 | Postdoctoral Research Associate (Physics)
Employment
Source: Self-asserted source
Kohei Hattori

University of Michigan: Ann Arbor, MI, US

2016-07-01 to 2019-07-31 | Research Fellow (Department of Astronomy)
Employment
Source: Self-asserted source
Kohei Hattori

National Astronomical Observatory of Japan: Tokyo, JP

2016-04-01 to 2016-06-30 | Visiting Researcher
Employment
Source: Self-asserted source
Kohei Hattori

University of Cambridge: Cambridge, Cambridgeshire, GB

2014-04-01 to 2016-03-31 | JSPS Fellow (Institute of Astronomy)
Employment
Source: Self-asserted source
Kohei Hattori

Education and qualifications (3)

University of Tokyo: Tokyo, JP

2011-04-01 to 2014-03-31 | PhD (Institute of Astronomy)
Education
Source: Self-asserted source
Kohei Hattori

University of Tokyo: Tokyo, JP

2009-04-01 to 2011-03-31 | MSc (Institute of Astronomy)
Education
Source: Self-asserted source
Kohei Hattori

University of Tokyo: Tokyo, JP

2005-04-01 to 2009-03-31 | BSc (Department of Astronomy)
Education
Source: Self-asserted source
Kohei Hattori

Works (17)

Action-based distribution function modelling for constraining the shape of the Galactic dark matter halo

Monthly Notices of the Royal Astronomical Society
2021-10-29 | Journal article
Part of ISSN: 0035-8711
Part of ISSN: 1365-2966
Source: Self-asserted source
Kohei Hattori

Kinematics of Highly r-process-enhanced Field Stars: Evidence for an Accretion Origin and Detection of Several Groups from Disrupted Satellites

\aj
2018-10 | Journal article
Source: Self-asserted source
Kohei Hattori
grade
Preferred source (of 2)‎

Origin of a massive hyper-runaway subgiant star LAMOST-HVS1 -- implication from Gaia and follow-up spectroscopy

ArXiv e-prints
2018-10 | Working paper
Contributors: Hattori, Kohei; Valluri, Monica; Castro, Norberto; Roederer, Ian U.; Mahler, Guillaume; Khullar, Gourav
Source: check_circle
NASA Astrophysics Data System

Old, Metal-Poor Extreme Velocity Stars in the Solar Neighborhood

ArXiv e-prints
2018-05 | Working paper
Contributors: Hattori, Kohei; Valluri, Monica; Bell, Eric F.; Roederer, Ian U.
Source: check_circle
NASA Astrophysics Data System

Constraining Solar position and velocity with a Nearby Hypervelocity Star

ArXiv e-prints
2018-04 | Working paper
Contributors: Hattori, Kohei; Valluri, Monica; Castro, Norberto
Source: check_circle
NASA Astrophysics Data System

Dynamical effects of the spiral arms on the velocity distribution of disc stars

Astrometry and Astrophysics in the Gaia Sky
2018-04 | Conference paper
Source: Self-asserted source
Kohei Hattori

Metallicity dependence of the Hercules stream in Gaia/RAVE data -- explanation by non-closed orbits

ArXiv e-prints
2018-04 | Working paper
Contributors: Hattori, Kohei; Gouda, Naoteru; Yano, Taihei; Sakai, Nobuyuki; Tagawa, Hiromichi; Baba, Junichi; Kumamoto, Jun
Source: check_circle
NASA Astrophysics Data System

Beta Dips in the Gaia Era: Simulation Predictions of the Galactic Velocity Anisotropy Parameter (\ensuremathβ) for Stellar Halos

\apj
2018-02 | Journal article
Source: Self-asserted source
Kohei Hattori
grade
Preferred source (of 2)‎

Reliability of the Measured Velocity Anisotropy of the Milky Way Stellar Halo

\apj
2017-06 | Journal article
Source: Self-asserted source
Kohei Hattori
grade
Preferred source (of 2)‎

Beta Dips in the Gaia Era: Simulation Predictions of the Galactic Velocity Anisotropy Parameter (β)

American Astronomical Society Meeting Abstracts #229
2017-01 | Conference abstract
Contributors: Loebman, Sarah; Valluri, Monica; Hattori, Kohei; Debattista, Victor P.; Bell, Eric F.; Stinson, Greg; Christensen, Charlotte; Brooks, Alyson; Quinn, Thomas R.; Governato, Fabio
Source: check_circle
NASA Astrophysics Data System

Shepherding tidal debris with the Galactic bar: the Ophiuchus stream

\mnras
2016-07 | Journal article
Source: Self-asserted source
Kohei Hattori

Vertical kinematics of the thick disc at 4.5 \ensuremathłesssim R \ensuremathłesssim 9.5 kpc

\mnras
2015-11 | Journal article
Source: Self-asserted source
Kohei Hattori

Possible Evidence for Metal Accretion onto the Surfaces of Metal-poor Main-sequence Stars

\apj
2014-04 | Journal article
Source: Self-asserted source
Kohei Hattori

Very Metal-poor Outer-halo Stars with Round Orbits

\apj
2013-01 | Journal article
Source: Self-asserted source
Kohei Hattori

Distribution Function of the Milky Way Inner Halo

Galactic Archaeology: Near-Field Cosmology and the Formation of the Milky Way
2012-08 | Conference paper
Contributors: Hattori, K.; Yoshii, Y.; Beers, T. C.; Carollo, D.
Source: check_circle
NASA Astrophysics Data System

The orbital eccentricity distribution of solar-neighbourhood halo stars

\mnras
2011-12 | Journal article
Source: Self-asserted source
Kohei Hattori

A new test for the Galactic formation and evolution - prediction for the orbital eccentricity distribution of the halo stars

\mnras
2010-11 | Journal article
Source: Self-asserted source
Kohei Hattori