Below is a list of my recent research papers, selected papers to date, and received research
funding.
Recent publications
Accelerated Hermite integrator for orbital integration with OpenACC and
MPI,
Otaki, Koki; Mori, Masao; Miki, Yohei; Takahashi, Daisuke, submitted to the Journal of
Supercomputing.
Collision frequency between dark matter subhaloes within Milky Way-like
galaxies,
Otaki, Koki; Kazuno, Yudai; Mori, Masao, New Astronomy, 124, 102501 (2026).
[New
Astronomy /
arXiv:2511.16464] Research briefing
The Characteristic Mass and Energy Conversion Efficiency in the Cusp-Core
Transition of Dark Matter Haloes: Implications for Scaling Relations and Supernova
Feedbacks,
Shinozaki, Michi; Mori, Masao; Kaneda, Yuka; Hayashi, Kohei,
Monthly Notices of the Royal Astronomical Society, 547, 1-12 (2026).
[MNRAS
/ arXiv:2601.13868]
Research briefing
Cusp-to-Core Transition of Dark Matter Halos across Galaxy Mass Scales,
Hayashi, Kohei; Kaneda, Yuka; Mori, Masao; Shinozaki, Michi, Publications of the Astronomical Society of Japan, 78, pp. 745-763 (2026).
[PASJ
/
arXiv:2507.22155]
Research briefing
Collision frequency between dark matter subhaloes within Milky Way-like
galaxies,
Otaki, Koki; Kazuno, Yudai; Mori, Masao, New Astronomy, 124, 102501 (2026).
[New
Astronomy /
arXiv:2511.16464] Research briefing
Formation of the Andromeda Giant Stream and the 10 kpc Ring Structure in the
Andromeda Galaxy,
Mori, Masao; Hotta, Ayami; Otaki, Koki, "Dynamical Masses of Local Group Galaxies",
Proceedings of the International Astronomical Union, 379, 110-115 (2025).
[
IAUS379]
Research briefing
c-M relation of the sub-galactic dark matter halos and the effect of the
cusp-to-core transition,
Kaneda, Yuka; Otaki, Koki; Mori, Masao, "Dynamical Masses of Local Group Galaxies",
Proceedings of the International Astronomical Union, 379, 172-176 (2025).
[
IAUS379]
Research briefing
Simultaneous Formation of the Andromeda Giant Southern Stream and the Substructures
in the Andromeda Halo,
Yamaguchi, Misa; Mori, Masao; Kirihara, Takanobu; Miki, Yohei; Ogami, Itsuki; Chiba,
Masashi; Komiyama, Yutaka; Tanaka, Mikito, Publications of the Astronomical Society of
Japan, 77, L36-L42 (2025)
[PASJ
/ arXiv:2503.21217]
Research briefing
The structure of the stellar halo of the Andromeda galaxy explored with the NB515
for Subaru/HSC. I.: New Insights on the stellar halo up to 120 kpc,
Ogami, Itsuki, et al., Monthly Notices of the Royal Astronomical Society, 536, 530 (2025)
[MNRAS
/ arXiv:2401.00668]
Research briefing
Cosmological evolution of dark matter subhaloes under tidal stripping by growing
Milky Way-like galaxies,
Kazuno, Yudai; Mori, Masao; Kaneda, Yuka; Otaki, Koki, Publications of the Astronomical
Society of Japan, 76, L39 (2024)
[PASJ
/ arXiv:2410.22185]
Research briefing
A universal scaling relation incorporating the cusp-to-core transition
of dark matter haloes,
Kaneda, Yuka; Mori, Masao; Otaki, Koki, Publications of the
Astronomical Society of Japan, 76, 1026 (2024)
[PASJ
/ arXiv:2407.03614]
Research briefing
Novel hydrodynamic schemes capturing shocks and contact discontinuities
and comparison study with existing methods,
Yuasa, Takuhiro; Mori, Masao, New Astronomy, 109, 102208 (2024).
[New
Astronomy
/ arXiv:2312.03224v3]
Research briefing
Frequency of the dark matter subhalo collisions and bifurcation
sequence arising from the formation of dwarf galaxies,
Otaki, Koki; Mori, Masao, Monthly Notices of the Royal
Astronomical Society, 525, 2535-2552 (2023).
[MNRAS
/ arXiv:2308.03737]
Research briefing
Transonic galactic wind model including stellar Feedbacks and
application to outflows in high/low-z galaxies,
Igarashi, Asuka; Mori, Masao; Nitta, Shin-ya,
Publications of the Astronomical Society of Japan, 75, 1214-1245 (2023).
Research briefing
Study of Galaxy Collisions and Thermodynamic Evolution of Gas Using the
Exact Integration Scheme,
Otaki, Koki; Mori, Masao, Lecture Notes in Computer Science, 13378,
373-387 (2022).
Research briefing
Destruction of the central black hole gas reservoir through head-on
galaxy collisions,
Miki, Yohei; Mori, Masao; Kawaguchi, Toshihiro, Nature Astronomy, 5, 478-484 (2021).
Research briefing
Discrimination of heavy elements originating from Pop III stars
in z = 3 intergalactic medium,
Kirihara, Takanobu; Hasegawa, Kenji; Umemura, Masayuki; Mori, Masao;
Ishiyama, Tomoaki, Monthly Notices of the Royal Astronomical Society, 491, 4387-4395 (2020).
Research briefing
Stellar Stream and Halo Structure in the Andromeda Galaxy from a
Subaru/Hyper Suprime-Cam Survey,
Komiyama, Yutaka; Chiba, Masashi; Tanaka, Mikito; Tanaka, Masayuki;
Kirihara, Takanobu; Miki, Yohei; Mori, Masao, et al., Astrophysical Journal, 853, 29 (2018).
Research briefing
Systematic Identification of LAEs for Visible Exploration and
Reionization Research
Using Subaru HSC (SILVERRUSH). I. Program strategy and clustering properties of ~2000
Lya emitters at z = 6-7 over the 0.3-0.5 Gpc2 survey area,
Ouchi, Masami; Harikane, Yuichi; Shibuya,
Takatoshi; Shimasaku, Kazuhiro; Taniguchi, Yoshiaki; Konno, Akira; Kobayashi, Masakazu;
Kajisawa, Masaru; Nagao, Tohru; Ono, Yoshiaki; Inoue, Akio K.; Umemura, Masayuki; Mori,
Masao, et al., Publications of the Astronomical Society of Japan, 70, 13O (2018)
Research briefing
The nature of the progenitor of the M31 north-western stream: globular
clusters as milestones of its orbit,
Kirihara, Takanobu; Miki, Yohei; Mori, Masao, Monthly Notices of
the Royal Astronomical Society, 469, 3390 (2017).
Research briefing
Formation of the Andromeda giant stream: asymmetric structure and disc
progenitor,
Kirihara, Takanobu; Miki, Yohei; Mori, Masao; Kawaguchi, Toshihiro; Rich, R. Michael,
Monthly Notices of the Royal Astronomical Society, 464, 35 (2017).
Research briefing
ALMA Reveals Strong [C II] Emission in a Galaxy Embedded in a Giant Lyα
Blob at z =
3.1,
Umehata, Hideki; Matsuda, Yuichi; Tamura, Yoichi; Kohno, Kotaro; Smail, Ian; Ivison, R. J.;
Steidel, Charles C.; Chapman, Scott C.; Geach, James E.; Hayes, Matthew; Nagao, Tohru; Ao,
Yiping; Kawabe, Ryohei; Yun, Min S.; Hatsukade, Bunyo; Kubo, Mariko; Kato, Yuta; Saito,
Tomoki; Ikarashi, Soh; Nakanishi, Kouichiro; Lee, Minju; Izumi, Takuma; Mori, Masao; Ouchi,
Masami, Astrophysical Journal, 834, L16 (2017).
Research briefing
Universal Dark Halo Scaling Relation for the Dwarf Spheroidal
Satellites,
Hayashi, Kohei; Ishiyama, Tomoaki; Ogiya, Go; Chiba, Masashi; Inoue, Shigeki; Mori, Masao,
Astrophysical
Journal, 843, 97 (2017).
Research briefing
Polytropic transonic galactic outflows in a dark matter halo with a
central black
hole,
Igarashi, Asuka; Mori, Masao; Nitta, Shin-ya, Monthly Notices of the Royal Astronomical
Society, 470, 2225 (2017).
Research briefing
Selected publications
Destruction of the central black hole gas reservoir through head-on
galaxy
collisions,
Miki, Yohei; Mori, Masao; Kawaguchi, Toshihiro, Nature Astronomy, 5, 478-484 (2021).
Research briefing
The connection between the cusp-to-core transformation and
observational
universalities of
DM haloes, Ogiya, Go; Mori, Masao; Ishiyama, Tomoaki; Burkert, Andreas,
Astrophysical
Journal, 440, L7 (2014) Research briefing
The Core-Cusp Problem in Cold Dark Matter Halos and Supernova Feedback:
Effects of Oscillation, Ogiya, Go; Mori, Masao, Astrophysical Journal, 793, 46
(2014).
Research briefing
The Once and Future Andromeda Stream, Mori, Masao; Rich, R.
Michael, Astrophysical Journal, 674, L77 (2008). Research briefing
The evolution of galaxies from primeval irregulars to present-day
ellipticals, Mori,
Masao; Umemura, Masayuki, Nature, 440, 644 (2006). Research briefing
The Nature of Lyα Blobs: Supernova-dominated Primordial
Galaxies, Mori, Masao; Umemura, Masayuki; Ferrara, Andrea, Astrophysical
Journal, 613, L97 (2004). Research briefing
Early Metal Enrichment by Pregalactic Outflows. II. Three-dimensional
Simulations of Blow-Away, Mori, Masao; Ferrara, Andrea; Madau, Piero,
Astrophysical Journal, 571, 40 (2002). Research briefing
Gas Stripping of Dwarf Galaxies in Clusters of Galaxies, Mori,
Masao; Burkert, Andreas, Astrophysical Journal, 538, 559 (2000). Research briefing
Dissipative Process as a Mechanism of Differentiating Internal
Structures between Dwarf and Normal Elliptical Galaxies in a Cold Dark Matter
Universe,
Mori, Masao; Yoshii, Yuzuru; Tsujimoto, Takuji; Ken'ichi, Nomoto,
Astrophysical Journal, 511, 585 (1999). Research briefing
The Evolution of Dwarf Galaxies with Star Formation in an
Outward-propagating Supershell, Mori, Masao; Yoshii, Yuzuru; Tsujimoto, Takuji;
Nomoto, Ken'ichi, Astrophysical Journal, 478, L21 (1997). Research briefing
Research grants
2025 "Galaxy Collisions and the Evolution of the Galactic
Habitable Zone"
(NAOJ Astrobiology Center Project, Principal Investigator)
2024-2027 "Hunting Dark Satellites Problem: Clarification
of the Dark Matter Paradox"
(Grant-in-Aid for Scientific Research (C), Principal Investigator)
2024-2026 "Stellar System Dynamics Theory of Galaxies and
its Application to the
Elucidation of Galactic Dark Matter" (Principal Investigator: Masafumi Chiba,
Fundamental Research (B), Co-Investigator)
2020-2023 "Do Dark Satellites Exist? - Elucidating Problems
in the Cold Dark Matter
Model"
(Grant-in-Aid for Scientific Research (C), Principal Investigator)
2015-2019 "Cosmological-Scale Material Cycles Explored by
Subaru HSC and SDSS"
(Principal
Investigator: Masami Ouchi, Grant-in-Aid for Scientific Research (A), Co-Investigator)
2013-2018 "Construction of a Galaxy Phylogenetic Tree by
Radiative-Fluid Simulations"
(Grant-in-Aid for Scientific Research (C), Principal Investigator)
2011-2014 "Cosmic Reionisation by Next Generation Large
Scale Exploration and
Simulation"
(Principal Investigator: Masami Ouchi, Grant-in-Aid for Scientific Research (A),
Co-Investigator)
2009-2012 "Exploration of Galaxy Genesis by Combining
Theory and Observation"
(Grant-in-Aid
for Scientific Research (A), Principal Investigator)
2008-2012 "Unravelling the Cosmic Dark Ages from First
Generation Objects to
Protogalaxies"
(Principal Investigator: Masayuki Umemura, Specially Promoted Research, Co-Investigator)
2006-2008 "Galaxy Ontogeny Probed by High-Precision Hybrid
Simulations" (Grant-in-Aid
for
Scientific Research (C), Principal Investigator)
2004-2007 "Investigation of the Origin of the First
Generation of Cosmic Objects Using
Fusion Parallel Computing" (Principal Investigator: Masayuki Umemura, Specially Promoted
Research, Co-Investigator)
2002-2004 "Broadband Modelling of Galaxy Evolution by
Hybrid Simulation" (Young
Scientists
(B), Principal Investigator)
2003-2004 "Material Circulation Processes in the Universe
Probed by Parallel Computers"
(Fund for the Promotion of Science, Japan Association for the Promotion and Mutual Aid
of
Private Schools, Principal Investigator)
2003 "Formation of First Generation Galaxies: Strategies
Towards Observational
Demonstration of Physical Scenarios" (Principal Investigator: Ryoichi Nishi, JSPS
Japan-Italy Seminar)
2002 "Formation of First Generation Galaxies and Its
Cosmological Significance"
(Principal
Investigator Masayuki Umemura, JSPS Japan-Italy Seminar)
2001 Research Grant from the Astronomy Foundation
(Principal Investigator)
1997-1999 JSPS Postdoctoral Fellowship for Research Fellows
(Principal Investigator)
