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Yuta Notsu

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Research Scientist II

University of Colorado Boulder

United States

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Recent Grants

Grant: Close

High-time resolution multi-color properties of stellar flares on G - M dwarfs

Open Date: 2025-03-05

Close Date: 2026-03-04

Grant: Close

Simultaneous Swift/UVOT NUV photometry with the HST Treasury Program NUV spectroscopy and TESS photometry

Open Date: 2024-11-13

Close Date: 2025-11-12

Grant: Close

Simultaneous X-ray Monitoring of M Dwarf Flares with the HST Treasury Program NUV Spectroscopy and TESS Photometry

Open Date: 2024-05-10

Close Date: 2026-05-09

Grant: Close

High-Time Resolution Multi-Color Properties Of Stellar Flares

Open Date: 2024-01-02

Close Date: 2026-01-01

Grant: Close

分光観測で迫る恒星スーパーフレア研究と惑星への影響

Open Date: 2021-04-01

Close Date: 2024-03-01

Articles (20)

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Collaborators (13)

Hiroyuki Maehara

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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Rachel Osten

Space Telescope Science Institute

UNITED STATES

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Maria Kazachenko

Assistant Professor

University of Colorado Boulder

UNITED STATES

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Shin Toriumi

准教授/Associate Professor

Japan Aerospace Exploration Agency

JAPAN

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Graeme White

Adjunct Professor

University of Southern Queensland

AUSTRALIA

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Julien Morin

Maître de Conférences / Associate Professor

University of Montpellier

FRANCE

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Adina D Feinstein

Assistant Professor

Michigan State University

UNITED STATES

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T. Enoto

Kyoto University

JAPAN

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Kai Ikuta

Project Assistant Professor

Hitotsubashi University

JAPAN

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Kazunari Shibata

Kyoto University

JAPAN

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ALEXANDER BROWN

University of Colorado Boulder

UNITED STATES

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Wataru Iwakiri

Assistant Professor

Chiba University

JAPAN

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Kyoung-Sun Lee

Associate Research Professor

Seoul National University

SOUTH KOREA

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Yuta Notsu

Research Interests

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Recent Grants

Articles (20)

Fe Kα equivalent-width mapping with 3D radiative transfer calculation: A general model and application to the RS Canum Venaticorum–type stars with XRISM/Resolve

Origin of the Stellar Fe Kα Line Clarified with Far-ultraviolet and X-Ray Observations of a Superflare on the RS Canum Venaticorum–type Star UX Arietis

Multiwavelength Campaign Observations of a Young Solar-type Star, EK Draconis. III. Comparison between Starspot Mapping, Zeeman Doppler Imaging, and Multiwavelength Variability

Broadband 12–26 GHz Radio Radiation Reveals Evidence for Microflares on AU Mic

Spectroscopic Analysis and RHD Modeling of the First Ca II H and H$\epsilon $ Flare Spectra from DKIST/ViSP

Quiet Hours with Epsilon Eridani: VLA Monitoring for 10 GHz Radio Flares

X-ray and Hα superflare on an RS CVn-type star, UX Arietis: Constraint on the flare location from radial velocity change during the flare

A 7 Day Multiwavelength Flare Campaign on AU Mic. IV. Quiescent Gyrosynchrotron and Gyroresonance Radiation from 12 to 25 GHz

Discovery of multi-temperature coronal mass ejection signatures from a young solar analogue

Time evolution of a white-light flare accompanied by probable postflare loops on the M-type dwarf EV Lacertae

High-time-cadence Spectroscopy and Photometry of Stellar Flares on M-dwarf YZ Canis Minoris with Seimei Telescope and TESS. II. Statistical Properties of Blue/Red Asymmetries in the Hα Line

High-time-cadence Spectroscopy and Photometry of Stellar Flares on M dwarf YZ Canis Minoris with the Seimei Telescope and TESS. I. Discovery of Rapid and Short-duration Prominence Eruptions

Rising Near-ultraviolet Spectra in Stellar Megaflares

A 7 day Multiwavelength Flare Campaign on AU Mic. II. Electron Densities and Kinetic Energies from High-frequency Radio Flares

Unveiling Unprecedented Fine Structure in Coronal Flare Loops with the DKIST

Eclipsing Stellar Flare on the Demon Star Algol Binary System Observed during the MAXI–NICER Follow-up Campaign in 2018

A Seven-day Multiwavelength Flare Campaign on AU Mic. III. Quiescent and Flaring Properties of the X-Ray Spectra and Chromospheric Lines

Do Young Suns Produce Frequent, Massive CMEs? Results from Five-year Dedicated Optical Observations of EK Draconis and V889 Hercules

Investigating the emission mechanism of the Fe Kα and Lα lines of stellar flares on RS CVn-type stars

Sun-like stars produce superflares roughly once per century

Collaborators (13)

Hiroyuki Maehara

Rachel Osten

Maria Kazachenko

Shin Toriumi

Graeme White

Julien Morin

Adina D Feinstein

T. Enoto

Kai Ikuta

Kazunari Shibata

ALEXANDER BROWN

Wataru Iwakiri

Kyoung-Sun Lee

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