ACTIVITY

• Mar. 2023 The Encouragement Award for Graduate programs (Master Course); The University of Tokyo, The School of Science, Department of Astronomy

Published (Lead : 4  Co : 1 )

1. T. Tokuno, K. Namekata, H. Maehara, S. Toriumi (2025) “Temporal Variation of Flare Occurrence Rates via the Spot Evolution on the Sun and Solar-type Stars”, Astrophysical Journal, 985, p.158. NASA/ADS

2. T.Tokuno, A. Fukui & T.K.Suzuki (2024) “A Novel Method to Constrain Tidal Quality Factor from A Non-synchronized Exoplanetary System”, Astrophysical Journal, 973, p.128. NASA/ADS

3. M.Matsuoka, T.K.Suzuki, T.Tokuno & K.Kakiuchi (2024) “Effect of Magnetic diffusion in the Chromosphere on the Solar Wind”, Astrophysical Journal, 970, p.16. NASA/ADS

4. T.Tokuno, T.K.Suzuki & M.Shoda (2023) “Transition of latitudinal differential rotation as a possible cause of weakened magnetic braking of solar-type stars”, Monthly Notices of the Royal Astronomical Society, 520, 1, p.418. NASA/ADS

5. T.Tokuno & M.Takata (2022) “Asteroseismology of the dip structure in period spacings of rapidly rotating γ Doradus stars caused by the coupling between core and envelope oscillations”, Monthly Notices of the Royal Astronomical Society, 514, 3, p.4140. NASA/ADS

In preparation (Lead : 1  Co : 1)

• T.Tokuno (in prep) “...”, ..

International Conference (Lead : 6  Co : 2)

1. T.Tokuno "Hypothesis on the Relationship between Buddha and Eclipse in the Theravāda scriptures" (Poster, P68)、Space Climate 9 (Nagoya, Japan), 1st-4th Oct. 2024

2. A.Fukui, T.Tokuno, Takeru K. Suzuki, Norio Narita, the MuSCAT team; the IRD Intensive team; the IRD Instrument team "An Ultrashort-Period, Ultracool Dwarf Transiting an M dwarf" (poster, poster 72), The 22nd Cambridge Workshop: Cool Stars, Stellar Systems and the Sun (San Diego, US), 24th-28th Jun. 2024

3. T.Tokuno, A.Fukui & T.K.Suzuki "A Novel Method to Constrain Tidal Quality Factor from Non-synchronized Exoplanetary System" (Oral, PCG19-19), Japan Geoscience Union Meeting 2024 (Chiba, Japan), 28th May. 2024

4. T.Tokuno, A.Fukui & T.K.Suzuki "A novel method to constrain tidal quality factor of low-mass stars without age using close-in gaseous planet systems" (Poster, 617.02),Extra Solar Systems V (Christchurch, New Zealand), 16th-21st Mar. 2024

5. T.Tokuno, A.Fukui & T.K.Suzuki "A novel method to constrain tidal quality factor of low-mass stars without age using close-in gaseous planet systems" (Poster, P3.11), East Asian Young Astronomers Meeting 2024 (Chiangmai, Thai), 2nd Feb. 2024 

6. T.Tokuno, T.K.Suzuki & M.Shoda “Transition of latitudinal differential rotation as a possible cause of weakened magnetic braking of solar-type stars” (Invited, Oral, SA-9-I4) ,7th Asia-Pacific Conference on Plasma Physics (Nagoya, Japan), 17th Dec. 2023

7. A. Fukui, T. Hirano, N.Narita, T.K. Suzuki, T.Tokuno, M.Ikoma, The MuSCAT Team, The IRD  Intensive Team, The IRD Instrument Team "Discovery of an Ultra-short-period, Ultra-cool Dwarf around an M dwarf "(Oral、PEM11-P09), Japan Geoscience Union Meeting 2023(Chiba, Japan), 5th May. 2023

8. T.Tokuno, T.K.Suzuki & M.Shoda "Effect of latitudinal differential rotation on long-time evolution of stellar spin" (contribution, poster, poster 142), The 21st Cambridge Workshops of Cool Stars , Stellar Systems and the Sun (Toulouse, France), 4-9th Jul. 2022