I moved back to NAOJ in November 2021.

Profiles

• Date of Birth: October 4, 1980 in Takatsuki, Osaka. Now I live in Fuchu, Tokyo.
  
• 1999-2003, Faculty of Science, Kyoto University.
  2003-2008, Kwasan Observatory, Kyoto University.
  2006-2008, Hinode Science Center, National Astronomical Observatory of Japan (NAOJ).
  2008, Ph.D. (Science), "Observational Studies on Formation and Evolution of Solar Active Region Prominences"
2008-2009, Postdoctral fellow at Hinode Science Center, NAOJ.
2009-2012, JSPS research fellow at Hinode Science Center, NAOJ.
2009-2021, Part-time lecturer at Meisei University (Plasma physics, Fluid dynamics)
2010-2011, Visiting scholar at Lockheed Martin Solar and Astrophysics Laboratory and Stanford University
2012-2015, ISAS/JAXA project researcher at ISAS.
2015-2016, Researcher at Solar-Terrestrial Environment Laboratory, Nagoya University.
2016-2021, NAOJ fellow at Chile Observatory, NAOJ.
2021-2021, Researcher at ISAS/JAXA
2021-, Assistant professor at SOLAR-C project, NAOJ

• Details about me (in Japanese) --> Joten's page
• Science Operation Member of Solar Physics Satellites "Hinode" and "IRIS"
• Project Scientist of the sounding rocket experiment CLASP-2

Researches

• ORCID 0000-0003-3765-1774


• Citation count


• ADS library on Japanese solar physicists, Citation ranking


• ADS library on Hinode papers (edited by Bernhard Fleck), Citation ranking


• Invited talk at international conference
  
  • "Challenges to the Solar Coronal Heating Problem by Satellite Observations and Rocket Experiments", APRIM 2023 (2023.08.08)
  • "Initial results of the CLASP2 rocket experiment to measure magnetic fields in the solar chromosphere", JPGU 2020 (2020.07.14)
  • "The Strongest Magnetic Fields in Sunspots and Their Statistical Properties", IUGG-2019 (2019.07.17)
  • "The CLASP2 experiment and the observing plans with IRIS and Hinode", Hinode-12 Science Meeting (2018.09.13)
  • "Solar MHD phenomena observed by Hinode", 1st Asia-Pacific Conference on Plasma Physics (2017.09.20)
  • "Waves in prominences and approach to the coronal heating", AOGS 2016 (2016.08.02)
  • "Introduction to the operation of HINODE", IRIS-7 Workshop (2016.04.13)
  • "Resonant Absorption in the Solar Atmosphere", Dynamic Sun-I. MHD Waves and Confined Transients in the Magnetized Atmosphere (2016.02.23)
  • "Atmospheric dynamics/heating from coordinated IRIS/Hinode/ SDO observations", IRIS-4 Workshop (2015.05.20)
  • "Observational evidence of resonant absorption in oscillating prominence", AGU Fall Meeting 2014 (2014.12.15)
  • "Waves and Oscillations in Prominences", Coupling and Dynamics of the Solar Atmosphere (2014.11.13)
  • "IRIS-Hinode Collaborative Observations of Oscillating Prominences and Discovery of Resonant Absorption", 2014 LWS/Hinode/IRIS Workshop (2014.11.05)
  • "Flows and dynamics in prominences and cavities", Shine Workshop 2012 (2012.06.26)
  • "Emergence of twisted flux in prominence observations", 4th Hinode Science Meeting (2010.10.12)
    Okamoto et al. 2012, ASPC, 455, 123


• CLASP report
  
  • IAUS 360 (2021.03.23)


• "The strongest magnetic fields in sunspots and their statistical properties"
  
  • ASJ Meeting (2018.03.16)
  • AGU Fall Meeting (2018.12.13)
  • ISAS Symposium (2019.01.09)
  • [Invited talk] IUGG-2019 (2019.07.17)
  • Hinode-13/IPELS Science Meeting (2019.09.03)


• "Super-strong Magnetic Field in Sunspots"
  
  • Okamoto and Sakurai 2018, ApJ, 852, L16"
  • Web Release in NAOJ (2018.02.06)
  • ASJ Meeting (2017.3.17)
  • IRIS-8/Hinode-11 Science Meeting (2017.6.2)
  • AGU Fall Meeting (2017.12.15)
  • ISAS Symposium (2018.01.09)


• "Helical Motions of Fine-structure Prominence Threads Observed by Hinode and IRIS"
  • Okamoto et al. 2016, ApJ, 831, 126, [movie]
  • ASJ Meeting (2008.9.12)
  • ASJ Meeting (2015.3.20)
  • IRIS-4 Workshop (2015.5.18)
  • IRIS-6 Workshop (2016.6.20)
  • Hinode-10 Science Meeting (2016.09.05)
  • International Astronomical Union Symposium 327 (2016.10.10)
  • AGU Fall Meeting (2016.12.15)
  • ISAS Symposium (2017.01.05)
  • COSPAR 2018 (2018.07.14-22)


• "Resonant Absorption of Transverse Oscillations and Associated Heating in a Solar Prominence. I. Observational Aspects"
  
  • Okamoto et al. 2015, ApJ, 809, 71, [movie]
  • Press Release in JAXA (2015.08.24)
  • Web Release in NASA (2015.08.25)
  • ASJ Meeting (2014.09.12)
  • [Invited talk] 2014 LWS/Hinode/IRIS Workshop (2014.11.05)
  • [Invited talk] AGU Fall Meeting 2014 (2014.12.15)
  • ISAS Symposium (2015.01.06)
  • [Invited talk] IRIS-4 Workshop (2015.05.20)
  • [Invited talk] Dynamic Sun-I. MHD Waves and Confined Transients in the Magnetized Atmosphere (2016.02.23)
  • [Invited talk] AOGS 2016 (2016.08.02)
  • [Invited talk] 1st Asia-Pacific Conference on Plasma Physics (2017.09.20)


• On Hinode-IRIS collaborative observations
  
  • ASJ Meeting (2013.03.22)
  • 7th Hinode Science Meeting (2013.11.12)
  • AGU Fall Meeting 2013 (2013.12.10)
  • ISAS Symposium (2014.01.09)
  • ASJ Meeting (2014.03.20)
  • [Invited talk] IRIS-7 Workshop (2016.04.13)


• "Propagating Waves along Spicules"
  
  • Okamoto and De Pontieu 2011, ApJ, 736, L24
  • ASJ Meeting (2011.9.21)
  • 5th Hinode Science Meeting (2011.10.12)
  • SDO-4/IRIS/Hinode Workshop (2012.03.12)
  • [Invited talk] JpGU 2014 (2014.05.02)
  • AOGS 11th Annual Meeting (2014.07.29)


• "A Rising Cool Column as Signature for Helical Flux Emergence and Formation of Prominence and Coronal Cavity"
  
  • Okamoto et al. 2010, ApJ, 719, 583, [movie]
  • ASJ Meeting (2009.9.15)
  • 3rd Hinode Science Meeting (2009.12.01)
  • AGU Fall Meeting 2010 (2010.12.17)
  • [Invited talk] Shine Workshop 2012 (2012.06.26)


• "Emergence of a Helical Flux Rope under an Active Region Prominence"
  "Prominence Formation Associated with an Emerging Helical Flux Rope"
  
  • Okamoto et al. 2008, ApJ, 673, L215
  • Okamoto et al. 2009, ApJ, 697, 913
  • ASJ Meeting (2007.9.28)
  • Prominence Research: Observations and Models (PROM) Workshop 2007 (2007.10.29)
  • American Astronomical Society, Solar Physics Division (2008.5.30)
  • 5th Asia Oceania Geosciences Society (2008.6.16)
  • 2nd Hinode Science Meeting (2008.9.29-10.3)
  • Flux Emergence Workshop 2008 (2008.10.6-9)
  • ASJ Meeting (2009.03.26)
  • [Invited talk] 4th Hinode Science Meeting (2010.10.12)


• "Coronal Transverse Magnetohydrodynamic Waves in a Solar Prominence"
  • Okamoto et al. 2007, Science, 318, 1577, [movie]
  • Press Release in NAOJ (2007.12.3)
  • 7th Space Science Symposium in ISAS (2006.12.21)
  • Alaska meeting on space weather (2007.3.18)
  • ASJ Meeting (2007.3.29)
  • Initial Results from Hinode -- Workshop in Memory of Takeo Kosugi (2007.4.26)
  • Japan Geoscience Union Meeting (2007.5.22)
  • American Astronomical Society 210th meeting / Solar Physics Division (2007.5.30)
  • Summer School in Astronomy and Astrophysics (2007.7.30)
  • International Astronomical Union Symposium 247 (2007.9.19)
  • International CAWSES Symposium (2007.10.23)
  • JPS Meeting (2009.03.30)
  • [Invited talk] Coupling and Dynamics of the Solar Atmosphere (2014.11.13)


• "Examinations of the relative alignment of the instruments on SOT"
  • Okamoto et al. 2007, ASPC, 369, 47
  • 6th Solar-B Science Meeting (2005.11.08)
  • ASJ Meeting (2006.3.28)
  • Extended 17th SOT Meeting (2006.4.18)


• "Filament Oscillations and Moreton waves Associated with EIT waves"
  • Okamoto et al. 2004, ApJ, 608, 1124
  • Japan Geoscience Union Meeting (2003.5.28)
  • Summer School in Astronomy and Astrophysics (2003.7.30)
  • ASJ Meeting (2003.9.27)
  • 1st Asia Oceania Geosciences Society (2004.7.7)


• Joint refereed papers
  
  • Li et al. 2023, ApJ, 945, 144
    "Tomography of a Solar Plage with the Tenerife Inversion Code"
  • Ishikawa et al. 2023, ApJ, 945, 125
    "Evidence for the Operation of the Hanle and Magneto-optical Effects in the Scattering Polarization Signals Observed by CLASP2 across the Mg II h and k Lines"
  • Song et al. 2022, Sol. Phys., 297, 135
    "Polarization Accuracy Verification of the Chromospheric LAyer SpectroPolarimeter"
  • Rachmeler et al. 2022, ApJ, 936, 67
    "Quiet Sun Center to Limb Variation of the Linear Polarization Observed by CLASP2 Across the Mg II h and k Lines"
  • Ishikawa et al. 2021, Science Adv., 7, 8406
    "Mapping solar magnetic fields from the photosphere to the base of the corona"
  • Shimojo et al. 2020, ApJ, 888, L28
    "Estimating the Temperature and Density of a Spicule from 100 GHz Data Obtained with ALMA"
  • Tei et al. 2020, ApJ, 888, 42
    "IRIS Mg II Observations and Non-LTE Modeling of Off-limb Spicules in a Solar Polar Coronal Hole"
  • Yoshida et al. 2019, ApJ, 887, 2
    "High-frequency Wave Propagation Along a Spicule Observed by CLASP"
  • Tei et al. 2018, PASJ, 70, 100
    "Blue-wing enhancement of the chromospheric Mg II h and k lines in a solar flare"
  • Yokoyama et al. 2018, ApJ, 863, 96
    "ALMA Observations of the Solar Chromosphere on the Polar Limb"
  • Antolin et al. 2015, ApJ, 809, 72
    "Resonant Absorption of Transverse Oscillations and Associated Heating in a Solar Prominence. II. Numerical Aspects"
  • Liu et al. 2015, ApJ, 803, 85
    "First High-resolution Spectroscopic Observations of an Erupting Prominence Within a Coronal Mass Ejection by the Interface Region Imaging Spectrograph (IRIS)"
  • De Pontieu et al. 2014, Sol. Phys., 289, 2733
    "The Interface Region Imaging Spectrograph (IRIS)"
  • Bamba et al. 2013, ApJ, 778, 48
    "Study on the Triggering Process of Solar Flares Based on Hinode/SOT Observations"
  • Lites et al. 2010, ApJ, 718, 474
    "Emergence of Helical Flux and the Formation of an Active Region Filament Channel"
  • Berger et al. 2010, ApJ, 716, 1288
    "Quiescent Prominence Dynamics Observed with the Hinode Solar Optical Telescope. I. Turbulent Upflow Plumes"
  • Harra et al. 2010, Sol. Phys., 263, 105
    "Response of the Solar Atmosphere to the Emergence of 'Serpentine' Magnetic Field"
  • Lites et al. 2010, ApJ, 713, 450
    "Scattering Polarization in the Fe I 630 nm Emission Lines at the Extreme Limb of the Sun"
  • Ning et al. 2009, A&A, 499, 595
    "Small-scale oscillations in a quiescent prominence observed by HINODE/SOT. Prominence oscillations"
  • Nishizuka et al. 2008, ApJ, 683, L83
    "Giant Chromospheric Anemone Jet Observed with Hinode and Comparison with Magnetohydrodynamic Simulations:
    Evidence of Propagating Alfven Waves and Magnetic Reconnection"
  • Berger et al. 2008, ApJ, 676, L89
    "Hinode SOT Observations of Solar Quiescent Prominence Dynamics"
  • Shibata et al. 2007, Science, 318, 1591
    "Chromospheric Anemone Jets as Evidence of Ubiquitous Reconnection"
  • Nagashima et al. 2007, ApJ, 668, 533
    "Triggering Mechanism for the Filament Eruption on 2005 September 13 in NOAA Active Region 10808"


• Accepted observing proposals
  
  • 2016.08：ALMA Cycle 4, Okamoto et al. "Wave Heating in Solar Prominences"
  • 2017.07：ALMA Cycle 5, Okamoto et al. "Oscillations and waves contributing to coronal heating on the Sun"
  • 2019.07：ALMA Cycle 7, Okamoto "Solar prominence dynamics and coronal heating"
  • 2021.02：DKIST OCP Cycle 1, Okamoto et al. "Waves in Prominences"

Miscellaneous

• Hinode movies made by Joten
• Ph.D. thesis
• drawclock.pro (version 7.1 - 2011 Dec. 29)

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Takenori Joten OKAMOTO