Takuma Izumi

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助教/Assistant Professor

自然科学研究機構国立天文台/National Astronomical Observatory of Japan

Japan

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（科研費若手研究）多相星間物質観測で検証する活動銀河中心核トーラスの動的描像

Open Date: 2020-04-01

Close Date: 2023-03-01

Grant: Close

（科研費若手B）高空間分解能ミリ波サブミリ波帯ガス輝線観測で探る活動銀河核トーラスの物理的起源

Open Date: 2017-04-01

Close Date: 2020-03-01

Grant: Close

（学振DC1）銀河進化解明に向けたミリ波サブミリ波帯分子輝線観測による銀河の熱源診断法の開発

Open Date: 2014-04-01

Close Date: 2017-03-01

Articles (17)

Circumnuclear Multiphase Gas in the Circinus Galaxy. VI. Detectability of Molecular Inflow and Atomic Outflow

Article Link

Year:

2024

Merging Gas-rich Galaxies That Harbor Low-luminosity Twin Quasars at z = 6.05: A Promising Progenitor of the Most Luminous Quasars

Article Link

Year:

2024

Reconstruction of Cosmic Black Hole Growth and Mass Distribution from Quasar Luminosity Functions at z > 4: Implications for Faint and Low-mass Populations in JWST

Article Link

Year:

2024

Discovery of Merging Twin Quasars at z = 6.05

Article Link

Year:

2024

The Relationships between Active Galactic Nucleus Power and Molecular Gas Mass within 500 pc of the Center of Elliptical Galaxies

Article Link

Year:

2024

Molecular Abundance of the Circumnuclear Region Surrounding an Active Galactic Nucleus in NGC 1068 Based on an Imaging Line Survey in the 3 mm Band with ALMA

Article Link

Year:

2023

Quasar Luminosity Function at z = 7

Article Link

Year:

2023

ALMA 0.5 kpc Resolution Spatially Resolved Investigations of Nuclear Dense Molecular Gas Properties in Nearby Ultraluminous Infrared Galaxies Based on HCN and HCO+ Three Transition Line Data

Article Link

Year:

2023

Dense Molecular Gas Properties of the Central Kiloparsec of Nearby Ultraluminous Infrared Galaxies Constrained by ALMA Three Transition-line Observations

Article Link

Year:

2023

Massive Molecular Gas Companions Uncovered by Very Large Array CO(1–0) Observations of the z = 5.2 Radio Galaxy TN J0924−2201

Article Link

Year:

2023

Detection of stellar light from quasar host galaxies at redshifts above 6

Article Link

Year:

2023

Supermassive black hole feeding and feedback observed on subparsec scales

Article Link

Year:

2023

BASS. XXXIV. A Catalog of the Nuclear Millimeter-wave Continuum Emission Properties of AGNs Constrained on Scales ≤ 100–200 pc

Article Link

Year:

2023

AGN-driven Cold Gas Outflow of NGC 1068 Characterized by Dissociation-sensitive Molecules

Article Link

Year:

2022

H1821+643: The Most X-Ray and Infrared Luminous Active Galactic Nucleus (AGN) in the Swift/BAT Survey in the Process of Rapid Stellar and Supermassive Black Hole Mass Assembly

Article Link

Year:

2022

BASS XXXII: Studying the Nuclear Millimeter-wave Continuum Emission of AGNs with ALMA at Scales ≲100–200 pc

Article Link

Year:

2022

High-resolution ALMA Study of CO J = 2–1 Line and Dust Continuum Emissions in Cluster Galaxies at z = 1.46

Article Link

Year:

2022

Collaborators (30)

Masao Hayashi

特任助教/Project Assistant Professor

自然科学研究機構国立天文台/National Astronomical Observatory of Japan

JAPAN

CHIN-SHIN CHANG

University of Geneva

SWITZERLAND

Tomoka Tosaki

Joetsu University of Education

JAPAN

Fumi Egusa

University of Tokyo

JAPAN

Melanie Habouzit

Assistant Professor / Group Leader

University of Geneva

SWITZERLAND

Hiroyuki Ikeda

Associate Professor

University of Fukui

JAPAN

Keiichi Wada

Professor

Kagoshima University

JAPAN

Nanase Harada

助教/Assistant Professor

自然科学研究機構国立天文台/National Astronomical Observatory of Japan

JAPAN

Yutaka Fujita

professor

University of Tokyo

JAPAN

Shunsuke Baba

Specially Appointed Assistant Professor

Institute of Space Sciences

JAPAN

Yoshiki Matsuoka

Ehime University

JAPAN

Bunyo Hatsukade

准教授/Associate Professor

自然科学研究機構国立天文台/National Astronomical Observatory of Japan

JAPAN

Masayuki Akiyama

Associate Professor

Tohoku University

JAPAN

Takuya Hashimoto

Assistant Professor

University of Tsukuba

JAPAN

Hiroshi Nagai

准教授/Associate Professor

自然科学研究機構国立天文台/National Astronomical Observatory of Japan

JAPAN

Kotaro Kohno

The Univeristy of Tokyo

JAPAN

Nobunari Kashikawa

The Univeristy of Tokyo

JAPAN

John Silverman

Professor

Kavli Institute for the Physics and Mathematics of the Universe

JAPAN

Richard Mushotzky

Professor

University of Maryland

UNITED STATES

Hideki Umehata

Nagoya University

JAPAN

Shuro Takano

Professor

Nihon University

JAPAN

Tohru Nagao

Ehime University

JAPAN

Satoshi Kikuta

University of Tokyo

JAPAN

Yoichi Tamura

Associate Professor

Nagoya University

JAPAN

Akio Taniguchi

Project assistant professor

Nagoya University

JAPAN

Masafusa Onoue

Assistant Professor

Waseda University

JAPAN

Marianne Vestergaard

Københavns Universitet

DENMARK

Ken-ichi Tadaki

Hokkai Gakuen University

JAPAN

Michael Strauss

Professor, Associate Chair

Princeton University

UNITED STATES

Masatoshi Imanishi

助教/Assistant Professor

自然科学研究機構国立天文台/National Astronomical Observatory of Japan

JAPAN

Takuma Izumi

Research Interests

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Recent Grants

Articles (17)

Circumnuclear Multiphase Gas in the Circinus Galaxy. VI. Detectability of Molecular Inflow and Atomic Outflow

Merging Gas-rich Galaxies That Harbor Low-luminosity Twin Quasars at z = 6.05: A Promising Progenitor of the Most Luminous Quasars

Reconstruction of Cosmic Black Hole Growth and Mass Distribution from Quasar Luminosity Functions at z > 4: Implications for Faint and Low-mass Populations in JWST

Discovery of Merging Twin Quasars at z = 6.05

The Relationships between Active Galactic Nucleus Power and Molecular Gas Mass within 500 pc of the Center of Elliptical Galaxies

Molecular Abundance of the Circumnuclear Region Surrounding an Active Galactic Nucleus in NGC 1068 Based on an Imaging Line Survey in the 3 mm Band with ALMA

Quasar Luminosity Function at z = 7

ALMA 0.5 kpc Resolution Spatially Resolved Investigations of Nuclear Dense Molecular Gas Properties in Nearby Ultraluminous Infrared Galaxies Based on HCN and HCO+ Three Transition Line Data

Dense Molecular Gas Properties of the Central Kiloparsec of Nearby Ultraluminous Infrared Galaxies Constrained by ALMA Three Transition-line Observations

Massive Molecular Gas Companions Uncovered by Very Large Array CO(1–0) Observations of the z = 5.2 Radio Galaxy TN J0924−2201

Detection of stellar light from quasar host galaxies at redshifts above 6

Supermassive black hole feeding and feedback observed on subparsec scales

BASS. XXXIV. A Catalog of the Nuclear Millimeter-wave Continuum Emission Properties of AGNs Constrained on Scales ≤ 100–200 pc

AGN-driven Cold Gas Outflow of NGC 1068 Characterized by Dissociation-sensitive Molecules

H1821+643: The Most X-Ray and Infrared Luminous Active Galactic Nucleus (AGN) in the Swift/BAT Survey in the Process of Rapid Stellar and Supermassive Black Hole Mass Assembly

BASS XXXII: Studying the Nuclear Millimeter-wave Continuum Emission of AGNs with ALMA at Scales ≲100–200 pc

High-resolution ALMA Study of CO J = 2–1 Line and Dust Continuum Emissions in Cluster Galaxies at z = 1.46

Collaborators (30)

Masao Hayashi

CHIN-SHIN CHANG

Tomoka Tosaki

Fumi Egusa

Melanie Habouzit

Hiroyuki Ikeda

Keiichi Wada

Nanase Harada

Yutaka Fujita

Shunsuke Baba

Yoshiki Matsuoka

Bunyo Hatsukade

Masayuki Akiyama

Takuya Hashimoto

Hiroshi Nagai

Kotaro Kohno

Nobunari Kashikawa

John Silverman

Richard Mushotzky

Hideki Umehata

Shuro Takano

Tohru Nagao

Satoshi Kikuta

Yoichi Tamura

Akio Taniguchi

Masafusa Onoue

Marianne Vestergaard

Ken-ichi Tadaki

Michael Strauss

Masatoshi Imanishi

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