Publications

Referred Papers

[44]"JASMINE: Near-Infrared Astrometry and Time Series Photometry Science"Daisuke Kawata, Hajime Kawahara, Naoteru Gouda, et al. (including Yuta Notsu)2024, PASJ, in press   ADS  doi:10.1093/pasj/psae020   arXiv: 2307.05666
[43] "Multiwavelength observation of an active M-dwarf star EV Lac and its stellar flare accompanied by a delayed prominence eruption"Shun Inoue, Teruaki Enoto, Kosuke Namekata, Yuta Notsu, Satoshi Honda, Hiroyuki Maehara, Jiale Zhang, Hong-Peng Lu, Hiroyuki Uchida, Takeshi Go Tsuru, Daisaku Nogami, Kazunari Shibata2024, PASJ,  76, 175  ADS   doi: 10.1093/pasj/psae001   arXiv:2401.00399
[42] "Magnetic activity variability of nearby bright Sun-like stars by 4-year intensive Hα line monitoring"Sanghee Lee, Yuta Notsu, Bun'ei Sato2024, PASJ,  76, 27    ADS   doi:10.1093/pasj/psad077   arXiv: 2310.19265 
[41] "APO & SMARTS flare star campaign observations I. Blue wing asymmetries in chromospheric lines during mid M dwarf flares from simultaneous spectroscopic and photometric observation data"Yuta Notsu, Adam F. Kowalski, Hiroyuki Maehara, Kosuke Namekata, Kenji Hamaguchi, Teruaki Enoto, Isaiah I. Tristan, Suzanne L. Hawley, James R. A. Davenport, Satoshi Honda, Kai Ikuta, Shun Inoue, Keiichi Namizaki, Daisaku Nogami, Kazunari Shibata2024, ApJ, 961, 189  ADS    DOI: 10.3847/1538-4357/ad062f   arXiv: 2310.02450  
[40] "Multi-wavelength Campaign Observations of a Young Solar-type Star, EK Draconis I. Discovery of Prominence Eruptions Associated with Superflares"Kosuke Namekata, Vladimir S. Airapetian, Pascal Petit, Hiroyuki Maehara, Kai Ikuta, Shun Inoue, Yuta Notsu, Rishi R. Paudel, Zaven Arzoumanian, Antoaneta A. Avramova-Boncheva, Keith Gendreau, Sandra V. Jeffers, Stephen Marsden, Julien Morin, Coralie Neiner, Aline A. Vidotto, Kazunari Shibata2024, ApJ, 961, 23   ADS    DOI: 10.3847/1538-4357/ad0b7c   arXiv: 2311.07380
[39] "Extreme Solar Events: Setting up a Paradigm"Ilya Usoskin, Fusa Miyake, Melanie Baroni, Nicolas Brehm, Silvia Dalla, Hisashi Hayakawa, Hugh Hudson, A. J. Timothy Jull, Delores Knipp, Sergey Koldobskiy, Hiroyuki Maehara, Florian Mekhaldi, Yuta Notsu, Stepan Poluianov, Eugene Rozanov, Alexander Shapiro, Tobias Spiegl, Timofei Sukhodolov, Joonas Uusitalo & Lukas Wacker 2023, Space Sci Rev, 219, 73   ADS     DOI: 10.1007/s11214-023-01018-1This review is based on our joint work of the International Space Science Institute (ISSI) team #510 (2020–2022)
[38]"Magnitude Estimates for the Carrington Flare in 1859 September: As Seen from the Original Records"Hisashi Hayakawa; Sabrina Bechet; Frédéric Clette; Hugh S. Hudson; Hiroyuki Maehara; Kosuke Namekata; Yuta Notsu2023, ApJL, 954, L3   ADS   DOI: 10.3847/2041-8213/acd853
[37]"A Seven-Day Multi-Wavelength Flare Campaign on AU Mic I: High-Time Resolution Light Curves and the Thermal Empirical Neupert Effect"Isaiah I. Tristan, Yuta Notsu, Adam F. Kowalski, Alexander Brown, John P. Wisniewski, Rachel A. Osten, Eliot H. Vrijmoet, Graeme L. White, Brad D. Carter, Carol A. Grady, Todd J. Henry, Rodrigo H. Hinojosa, Jamie R. Lomax, James E. Neff, Leonardo A. Paredes, Jack Soutter2023, ApJ, 951, 33    ADS  DOI: 10.3847/1538-4357/acc94f  arXiv:2304.05692
[36] "Starspot mapping with adaptive parallel tempering. II. Application to TESS data for M-dwarf flare stars, AU Microscopii, YZ Canis Minoris, and EV Lacertae"Kai Ikuta, Kosuke Namekata, Yuta Notsu, Hiroyuki Maehara, Soshi Okamoto, Satoshi Honda, Daisaku Nogami, Kazunari Shibata2023, ApJ, 948, 64    ADS   doi:10.3847/1538-4357/acbd36   arXiv:2302.09249
[35] "Detection of a high-velocity prominence eruption leading to a CME associated with a superflare on the RS CVn-type star V1355 Orionis"Shun Inoue, Hiroyuki Maehara, Yuta Notsu, Kosuke Namekata, Satoshi Honda, Keiichi Namizaki, Daisaku Nogami, Kazunari Shibata2023, ApJ,  948, 9  ADS  doi: 10.3847/1538-4357/acb7e8   arXiv:2301.13453Press releases:  (English)  "Superflare with Massive, High-Velocity Prominence Eruption "(NAOJ),   Superflare with Massive, High-Velocity Prominence Eruption (Kyoto Univ)(日本語🇯🇵)「史上最大質量の超高速恒星プロミネンス噴出―せいめい望遠鏡が捉えた極限宇宙天気現象― 」(京都大学), 恒星のスーパーフレアに伴う、超高速プロミネンスの噴出を検出 」(国立天文台), 恒星のスーパーフレアに伴う、超高速プロミネンスの噴出を検出 」(国立天文台岡山分室)
[34] "Magnetic activity variability from Hα line intensive monitoring for two F-type stars having a hot-Jupiter, τ Bootis A and υ Andromedae A"Sanghee Lee, Yuta Notsu, Bun'ei Sato2023, PASJ, 75, 446   ADS    doi:10.1093/pasj/psad010  arXiv: 2302.02135 
[33] "Reconstructing the XUV Spectra of Active Sun-like Stars Using Solar Scaling Relations with Magnetic Flux"Kosuke Namekata, Shin Toriumi, Vladimir S. Airapetian, Munehito Shoda, Kyoko Watanabe, Yuta Notsu2023, ApJ, 945, 147   ADS   doi:10.3847/1538-4357/acbe38   arXiv:2302.10376
[32] "A Superflare on YZ Canis Minoris Observed by Seimei Telescope and TESS: Red Asymmetry of Hα Emission Associated with White-Light Emission"Keiichi Namizaki, Kosuke Namekata, Hiroyuki Maehara, Yuta Notsu, Satoshi Honda, Daisaku Nogami, Kazunari Shibata2023, ApJ, 945,61   ADS    doi: 10.3847/1538-4357/acb928 arXiv:2302.03007 Featured at astrobites "Asymmetries are red, violets are blue, superflares are seen in white light, and H-alpha too!"
[31]"Universal Scaling Laws for Solar and Stellar Atmospheric Heating: Catalog of Power-law Index between Solar Activity Proxies and Various Spectral Irradiances"Shin Toriumi, Vladimir S. Airapetian, Kosuke Namekata, Yuta Notsu2022, ApJS, 262, 46    ADS  doi:10.3847/1538-4365/ac8b15   arXiv:2208.10511
[30]"Discovery of a Long-Duration Superflare on a Young Solar-Type Star EK Draconis with Nearly Similar Time Evolution for Hα and White-Light Emissions"Kosuke Namekata, Hiroyuki Maehara, Satoshi Honda, Yuta Notsu, Soshi Okamoto, Jun Takahashi, Masaki Takayama, Tomohito Ohshima, Tomoki Saito, Noriyuki Katoh, Miyako Tozuka, Katsuhiro L. Murata, Futa Ogawa, Masafumi Niwano, Ryo Adachi, Motoki Oeda, Kazuki Shiraishi, Keisuke Isogai, Daisaku Nogami, Kazunari Shibata2022, ApJL, 926, L5  ADS   doi: 10.3847/2041-8213/ac4df0     arXiv:2201.09416
[29]"Probable detection of an eruptive filament from a superflare on a solar-type star" Kosuke Namekata, Hiroyuki Maehara, Satoshi Honda, Yuta Notsu, Soshi Okamoto, Jun Takahashi, Masaki Takayama, Tomohito Ohshima, Tomoki Saito, Noriyuki Katoh, Miyako Tozuka, Katsuhiro L. Murata, Futa Ogawa, Masafumi Niwano, Ryo Adachi, Motoki Oeda, Kazuki Shiraishi, Keisuke Isogai, Daikichi Seki, Takako T. Ishii, Kiyoshi Ichimoto, Daisaku Nogami & Kazunari Shibata 2022, Nature Astronomy,  6, 241-248 (Published online on 09 December 2021, Open Access)  ADS  doi:10.1038/s41550-021-01532-8      arXiv:2112.04808  (Article Metrics)
            Nature Research Highlight: "Young star’s streamer of scorching-hot gas gives astronomers a fiery first"             Press release:   CU Boulder: 🇺🇸 "A young, sun-like star may hold warnings for life on Earth" NSO blog:   🇺🇸 "Researchers Observe Massive CME on Distant, Sun-Like Star"  NAOJ:  🇯🇵 「太陽型星のスーパーフレアから噴出する巨大フィラメントを初検出 —昔の、そして今の惑星環境や文明に与える脅威—
[28]"Time-resolved spectroscopy and photometry of an M dwarf flare star YZ Canis Minoris with OISTER and TESS: Blue asymmetry in Hα line during the non-white light flare"Hiroyuki Maehara, Yuta Notsu, Kousuke Namekata, Satoshi Honda, Adam F. Kowalski, Noriyuki Katoh, Tomohito Ohshima, Kota Iida, Motoki Oeda, Katsuhiro L. Murata, Masayuki Yamanaka, Kengo Takagi, Mahito Sasada, Hiroshi Akitaya, Kai Ikuta, Soshi Okamoto, Daisaku Nogami, Kazunari Shibata2021, PASJ, 73, 44   ADS   doi: 10.1093/pasj/psaa098    arXiv:2009.14412 
[27]"Statistical Properties of Superflares on Solar-type Stars: Results Using All of the Kepler Primary Mission Data"Soshi Okamoto, Yuta Notsu, Hiroyuki Maehara, Kosuke Namekata, Satoshi Honda, Kai Ikuta, Daisaku Nogami, Kazunari Shibata2021, ApJ, 906, 72   ADS   doi: 10.3847/1538-4357/abc8f5   arXiv:2011.02117 
[26]"Starspot mapping with adaptive parallel tempering I: Implementation of computational code"Kai Ikuta, Hiroyuki Maehara, Yuta Notsu, Kosuke Namekata, Taichi Kato, Shota Notsu, Soshi Okamoto, Satoshi Honda, Daisaku Nogami, Kazunari Shibata2020, ApJ, 902, 73  ADS   doi:10.3847/1538-4357/abae5f   arXiv:2008.05478 
[25] "Optical and X-ray observations of stellar flares on an active M dwarf AD Leonis with Seimei Telescope, SCAT, NICER and OISTER"Kosuke Namekata, Hiroyuki Maehara, Ryo Sasaki, Hiroki Kawai, Yuta Notsu,  Adam F. Kowalski, Joel C. Allred, Wataru Iwakiri, Yoko Tsuboi, Katsuhiro L. Murata, Masafumi Niwano, Kazuki Shiraishi, Ryo Adachi, Kota Iida, Motoki Oeda, Satoshi Honda, Miyako Tozuka, Noriyuki Katoh, Hiroki Onozato, Soshi Okamoto, Keisuke Isogai, Mariko Kimura, 4, Naoto Kojiguchi, Yasuyuki Wakamatsu, Yusuke Tampo, Daisaku Nogami, and Kazunari Shibata2020, PASJ, 72, 68   ADS   doi:10.1093/pasj/psaa051  arXiv:2005.04336             Press release:                      Kyoto Univ (Japanese)      NAOJ(Japanese)                    Kyoto Univ (English)      NAOJ(English)
[24] "The Extreme Space Weather Event in 1903 October/November: An Outburst from the Quiet Sun"Hisashi Hayakawa, Paulo Ribeiro, José M. Vaquero, María Cruz Gallego, Delores J. Knipp, Florian Mekhaldi, Ankush Bhaskar, Denny M. Oliveira, Yuta Notsu,  Víctor M. S. Carrasco, Ana Caccavari, Bhaskara Veenadhari, Shyamoli Mukherjee, Yusuke Ebihara2020, ApJL, 897, L10    ADS    doi:10.3847/2041-8213/ab6a18   arXiv:2001.04575
[23]"Impact of Space Weather on Climate and Habitability of Terrestrial Type Exoplanets"V.S. Airapetian, R. Barnes, O. Cohen, G.A. Collinson, W.C. Danchi, C.F. Dong, A.D. Del Genio, K. France, K. Garcia-Sage, A. Glocer, N. Gopalswamy, J.L. Grenfell, G. Gronoff, M. G"udel, K. Herbst, W.G. Henning, C.H. Jackman, M. Jin, C.P. Johnstone, L. Kaltenegger, C.D. Kay, K. Kobayashi, W. Kuang, G. Li, B.J. Lynch, T. L"uftinger, TJ.G. Luhmann, H. Maehara, M.G. Mlynczak, Y. Notsu, R.M. Ramirez, S. Rugheimer, M. Scheucher, J.E. Schlieder, K. Shibata, C. Sousa-Silva, V. Stamenkovi'c, R.J. Strangeway, A.V. Usmanov, P. Vergados, O.P. Verkhoglyadova, A.A. Vidotto, M. Voytek, M.J. Way, G.P. Zank, Y. Yamashiki2020, International Journal of Astrobiology, 19, 136  ADS   doi:10.1017/S1473550419000132     arXiv:1905.05093
[22] "Cost estimation for alternative aviation plans against potential radiation exposure associated with solar proton events for the airline industry"Yosuke A. Yamashiki, Moe Fujita, Tatsuhiko Sato, Hiroyuki Maehara, Yuta Notsu,  & Kazunari Shibata 2020, Evolut Inst Econ Rev    doi:10.1007/s40844-020-00163-4   arXiv:2004.10869  
[21] "Temporal Evolution of Spatially-Resolved Individual Star Spots on a Planet-Hosting Solar-type Star: Kepler 17"Kosuke Namekata, James R. A. Davenport, Brett M. Morris, Suzanne L. Hawley, Hiroyuki Maehara, Yuta Notsu, Shin Toriumi, Kai Ikuta, Shota Notsu, Satoshi Honda, Daisaku Nogami, and Kazunari Shibata2020, ApJ,  891, 103   ADS   doi:10.3847/1538-4357/ab7384  arXiv:2002.01086
[20]"A Blueprint of State-of-the-art Techniques for Detecting Quasi-periodic Pulsations in Solar and Stellar Flares"Anne-Marie Broomhall, James R. A. Davenport, Laura A. Hayes, Andrew R. Inglis, Dmitrii Y. Kolotkov, James A. McLaughlin, Tishtrya Mehta, Valery M. Nakariakov, Yuta Notsu,  David J. Pascoe, Chloe E. Pugh, and Tom Van Doorsselaere2019, ApJS, 244, 44   ADS  doi:10.3847/1538-4365/ab40b3    arXiv:1910.08458
[19]"Impact of Stellar Superflares on Planetary Habitability"Yosuke A. Yamashiki, Hiroyuki Maehara, Vladimir Airapetian, Yuta Notsu, Tatsuhiko Sato, Shota Notsu, Ryusuke Kuroki, Keiya Murashima, Hiroaki Sato, Kosuke Namekata, Takanori Sasaki, Thomas B. Scott, Hina Bando, Subaru Nashimoto, Fuka Takagi, Cassandra Ling, Daisaku Nogami, Kazunari Shibata2019, ApJ, 881, 114  ADS   doi: 10.3847/1538-4357/ab2a71  arXiv:1906.06797           Press Release:  Kyoto Univ (Japanese)   (JAEA  Webpage (Japanese)国立天文台 Webpage (Japanese))
[18]"Unaided-eye Sunspot Observations in 1769 November: A Comparison of Graphical Records in the East and the West"Hisashi Hayakawa, David M. Willis, Kentaro Hattori, Yuta Notsu, Matthew N. Wild, Christoffer Karoff2019, Solar Physics, 294, 95   ADS     doi: 10.1007/s11207-019-1488-5
[17]" Do Kepler superflare stars really include slowly-rotating Sun-like stars ? - Results using APO 3.5m telescope spectroscopic observations and Gaia-DR2 data - "  Yuta Notsu, Hiroyuki Maehara, Satoshi Honda, Suzanne L. Hawley, James R. A. Davenport, Kosuke Namekata, Shota Notsu, Kai Ikuta, Daisaku Nogami, Kazunari Shibata2019, ApJ 876 58    ADS  doi: 10.3847/1538-4357/ab14e6  arXiv:1904.00142 
        Press Release: CU Boulder   LASP@CU  AAS  KyotoUniv(Japanese)        Recording of Press conference at AAS 234 (Youtube):  "AAS 234 Press Conference: Exoplanets & Flare Stars"
[16]"arcesetc: ARC Echelle Spectrograph Exposure Time Calculator"  Brett M. Morris, Trevor Dorn-Wallenstein, Emily M. Levesque, Charli Sakari, Doug Gies, Katherine Lester, Yuta Notsu, Allison Youngblood, and Russet McMillan 2019, Journal of Open Source Software, 4(34), 1130, ADS  doi: 10.21105/joss.01130  
[15]" Lifetimes and Emergence/Decay Rates of Star Spots on Solar-type Stars Estimated by Kepler Data in Comparison with Those of Sunspots"Namekata, K., Maehara, H., Notsu, Y., Toriumi, S., Hayakawa, H., Ikuta, K., Notsu, S., Honda, S., Nogami, D., & Shibata, K. 2019, ApJ, 871, 187    ADS    doi: 10.3847/1538-4357/aaf471    arXiv:1811.10782 
[14]"Time-resolved spectroscopic observations of an M-dwarf flare star EV Lacertae during a flare"Honda, S., Notsu, Y., Namekata, K., Notsu, S., Maehara, H., Ikuta, K., Nogami, D., & Shibata, K. 2018, PASJ, 70, 62,   ADS    doi:10.1093/pasj/psy055   arXiv:1804.03771 
[13]"Statistical Studies of Solar White-Light Flares and Comparisons with Superflares on Solar-type Stars"Namekata, K., Sakaue, T., Watanabe, K., Asai, A., Maehara, H., Notsu, Y., Notsu, S., Honda, S., Ishii, T. T., Ikuta, K., Nogami, D., & Shibata, K. ApJ, 2017, 851, 2    ADS,    doi: 10.3847/1538-4357/aa9b34   arXiv:1710.11325 
[12]"Starspot activity and superflares on solar-type stars"Maehara, H., Notsu, Y., Notsu, S., Namekata, K., Honda, S., Ishii, T. T., Nogami, D., & Shibata, K.PASJ, 2017, 69 (3), 41  (First published online on 12 April 2017)   ADS    doi: 10.1093/pasj/psx013    arXiv:1702.07141 
[11]"Spectroscopic observations of active solar-analog stars having high X-ray luminosity, as a proxy of superflare stars"Notsu, Y., Honda, S., Maehara, H., Notsu, S., Namekata, K., Nogami, D., & Shibata, K.PASJ, 2017, 69 (1), 12,   (First published online January 24, 2017)        ADS   doi: 10.1093/pasj/psw116   arXiv:1611.03659 
[10]"High Dispersion Spectroscopy of Solar-type Superflare Stars. III. Lithium Abundances"Honda, S., Notsu, Y., Maehara, H., Notsu, S., Shibayama, T., Nogami, D., & Shibata, K.PASJ, 2015, 67 (5), 85   (First published online July 7, 2015)        ADS   doi: 10.1093/pasj/psv054   arXiv:1505.06050   
[9]"High dispersion spectroscopy of solar-type superflare stars.      II. Stellar rotation, starspots, and chromospheric activities "Notsu, Y., Honda, S., Maehara, H., Notsu, S., Shibayama, T., Nogami, D., & Shibata, K.PASJ, 2015, 67 (3), 33,   (First published online March 29, 2015)         ADS   doi: 10.1093/pasj/psv002   arXiv:1412.8245 
Press Release (May 12th (JST), 2015):     Subaru Telescope Observers Superflare Stars with Large Starspots     RHESSI Science Nugget No. 254 (Author: Yuta Notsu)      "May 18 - 24, 2015 Stargazer: Superflares On Stars"(Hawaii Public Radio) 
     「すばる望遠鏡で迫るスーパーフレア星の正体」     すばる望遠鏡HPの解説記事(日本語)      京都大学HPの解説記事(日本語)     日経新聞記事(2015年6月1日朝刊)      読売新聞2015年8月10日16面(関西)掲載
[8]"High dispersion spectroscopy of solar-type superflare stars.      I. Temperature, surface gravity, metallicity, and vsin i "Notsu, Y., Honda, S., Maehara, H., Notsu, S., Shibayama, T., Nogami, D., & Shibata, K.PASJ, 2015, 67 (3), 32,   (First published online February 22, 2015)         ADS   doi: 10.1093/pasj/psv001   arXiv:1412.8243  
[7]"Statistical properties of superflares on solar-type stars based on 1-min cadence data"Maehara, H., Shibayama, T., Notsu, Y., Notsu, S., Honda, S., Nogami, D., & Shibata, K.EPS (Earth, Planets and Space), 2015, 67, 59,   (Published online: 2015 April 29)     ADS   doi:10.1186/s40623-015-0217-z   arXiv:1504.00074    cf. RHESSI Science Nugget No. 253 (Author: Hiroyuki Maehara)   
[6]"Two Sun-like Superflare Stars Rotating as Slow as the Sun"Nogami, D., Notsu, Y., Honda, S., Maehara, H., Notsu, S., Shibayama, T., & Shibata, K.PASJ, 66, L4 (2014 April)     ADS   arXiv:1402.3772  cf. Research topics page at Kwasan and Hida Observatory website (in Japanese)   cf. Research topics page at Subaru telescope webpage (in Japanese) 
[5]"Superflares on Solar Type Stars Observed with Kepler I. Statistical Properties of Superflares"Shibayama,T., Maehara, H., Notsu, S., Notsu, Y., Nagao, T., Honda, S., Ishii, T. T., Nogami, D., & Shibata, K.ApJS, 209, 5 (2013 November)     ADS   arXiv:1308.1480 
[4]"High Dispersion Spectroscopy of the Superflare Star KIC6934317"Notsu, S., Honda, S., Notsu, Y., Nagao, T., Shibayama,T., Maehara, H., Nogami, D., & Shibata, K.PASJ, 65, 112 (2013 October)     ADS   arXiv:1307.4929 
[3]"Superflares on Solar-Type Stars Observed with Kepler     II. PhotometricVariability of Superflare-Generating Stars : A Signature of Stellar Rotation and Starspots"Notsu, Y., Shibayama,T., Maehara, H., Notsu, S., Nagao, T., Honda, S., Ishii, T. T., Nogami, D., & Shibata, K.ApJ 771 127 (2013 July)     ADS   arXiv:1304.7361 
[2]"Can Superflares Occur on Our Sun?"Shibata, K., Isobe, H., Hillier, A., Choudhuri, A. R., Maehara, H., Ishii, T. T., Shibayama, T., Notsu, S., Notsu, Y., Nagao, T., Honda, S., & Nogami, D. PASJ, 65, 49 (2013 June)     ADS   arXiv:1212.1361 
[1]"Superflares on solar-type stars"Maehara, H., Shibayama, T., Notsu, S., Notsu, Y., Nagao, T., Kusaba, S., Honda, S., Nogami, D., & Shibata, K. Nature, Volume 485, Issue 7399, pp. 478-481 (2012 May)     ADS   doi:10.1038/nature11063   cf. Research results page at Kyoto Univesersity website (in Japanese)

Proceedings (Only First-Author ones are listed here.)

"Statistical properties of superflares on solar-type stars with Kepler data"Notsu, Y., Maehara, H., Shibayama, T., Honda, S., Notsu, S., Namekata, K., Nogami, D., & Shibata, K.Proceeding of "The 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (CS19), Uppsala, Sweden, 06-10 June 2016."  ADS   DOI:10.5281/zenodo.59138   arXiv:1608.00186 
"High dispersion spectroscopy of solar-type superflare stars with Subaru/HDS"Notsu, Y., Honda, S., Maehara, H., Notsu, S., Shibayama, T., Nogami, D., & Shibata, K.Proceeding of IAU Symposium No. 320 "Solar and Stellar Flares and Their Effects on Planets" (IAU Symposium, Volume 320, pp. 138-143).   ADS      DOI:10.1017/S1743921316000430    arXiv:1510.08143    See also Link of the all proceeding of the symposium

Books


"Explorations of Extreme Space Weather Events from Stellar Observations and Archival Investigations" Hayakawa, H., Notsu, Y., Ebihara, Y. (2023)  doi: 10.1007/978-981-19-7765-7_11       (ADS)In: Kusano, K. (eds) Solar-Terrestrial Environmental Prediction. Springer, Singapore. 
「3-4-1.太陽型星のスーパーフレア (3-4.超巨大フレアと極端宇宙天気現象の可能性)」     野津湧太, 2021年5月31日公開      DOI:10.18999/pstep.2021.3.4.1       pdf   「太陽地球圏環境予測 オープン・テキストブック (PSTEP Open Textbook)」内の1章を執筆担当       テキストブック全体URL     目次 紹介記事(名大ISSE)

Other Articles in English


Connecting Solar and Stellar Flares/CMEs: Expanding Heliophysics to Encompass Exoplanetary Space WeatherB. J. Lynch, B. E. Wood, M. Jin, T. Török, X. Sun, E. Palmerio, R. A. Osten, A. A. Vidotto, O. Cohen, J. D. Alvarado-Gómez, J. J. Drake, V. S. Airapetian, Y. Notsu, A. Veronig, K. Namekata, R. M. Winslow, L. K. Jian, A. Vourlidas, N. Lugaz, N. Al-Haddad, W. B. Manchester, C. Scolini, C. J. Farrugia, E. E. Davies, T. Nieves-Chinchilla, F. Carcaboso, C. O. Lee, T. M. Salmanwhite paper submitted to the Heliophysics 2024--2033 Decadal SurveyarXiv:2210.06476
"Solar Analogs as a Tool to Understand the Sun"Allison Youngblood, Steve Cranmer, Sam Van Kooten, James Paul Mason, J. Sebastian Pineda, Kevin France, Dmitry Vorobiev, Frank Eparvier, Yuta Notsuwhite paper submitted to the Heliophysics 2050 Workshop    ADS    arXiv:2009.05672 
"Do Kepler Superflare Stars Really Include Slowly Rotating Sun-like Stars?"Yuta NOTSURHESSI Science Nugget No.354  (Published on July 8th 2019)
"Reconstructing Extreme Space Weather from Planet Hosting Stars"V. S. Airapetian, V. Adibekyan, M. Ansdell, D. Alexander, T. Bastian, S. Boro Saikia, A. S. Brun, O. Cohen, M. Cuntz, W. Danchi, J. Davenport, J. DeNolfo, R. DeVore, C. F. Dong, J. J. Drake, K. France, F. Fraschetti, K. Herbst, K. Garcia-Sage, M. Gillon, A. Glocer, J. L. Grenfell, G. Gronoff, N. Gopalswamy, M. Guedel, H. Hartnett, H. Harutyunyan, N. R. Hinkel, A. G. Jensen, M. Jin, C. Johnstone, P. Kalas, S. R. Kane, C. Kay, I.N. Kitiashvili, O. Kochukhov, D. Kondrashov, J. Lazio, J. Leake, G. Li, J. Linsky, T. Lueftinger, B. Lynch, W. Lyra, A. M. Mandell, K. E. Mandt, H. Maehara, M. S. Miesch, A. M. Mickaelian, S. Mouchou, Y.Notsu, L. Ofman, L. D. Oman, R. A. Osten, R. Oran, R. Petre, R. M. Ramirez, G. Rau, S. Redfield, V. Réville, S. Rugheimer, M. Scheucher, J. E. Schlieder, K. Shibata, J. D. Schnittman, David Soderblom, A. Strugarek, J. D. Turner, A. Usmanov, Van Der Holst, A. Vidotto, A. Vourlidas, M.J. Way, Wolk, G. P. Zank, P. Zarka R., Kopparapu, S. Babakhanova, A. A. Pevtsov, Y. Lee, W. Henning, K. D. Colón, E. T. Wolf White Paper submitted to the Astronomy and Astrophysics Decadal Survey (Astro2020), 8 pages, 1 figure, ADS (arXiv:1903.06853) 
"Exploring Extreme Space Weather Factors of Exoplanetary Habitability"V. S. Airapetian (GSFC/SEEC and American University, DC), V. Adibekyan (UPORTO), M. Ansdell (University of Hawaii), O. Cohen (University of Massachusetts Lowell), M. Cuntz (UFZ), W. Danchi (GSFC/SEEC), C. F. Dong (Princeton University), J. J. Drake (Harvard-Cfa), A. Fahrenbach (Caltech), K. France (CU Boulder), K. Garcia-Sage (GSFC/SEEC/CUA), A. Glocer (GSFC/SEEC), J. L. Grenfell (German Aerospace Center), G. Gronoff (NASA LaRC/SSAI), H. Hartnett (Arizona State University), W. Henning (NASA GSFC), N. R. Hinkel (Arizona State University), A. G. Jensen (UNK), M. Jin (LMSAL), P. Kalas (UC Berkeley), S. R. Kane (UC Riverside), K. Kobayashi (Yokohama National University), R. Kopparapu (GSFC/SEEC/UMD), J. Leake (GSFC), M. López-Puertas (Inst de Astrofisica de Andalucía), T. Lueftinger (University of Vienna), B. Lynch (UC Berkeley), W. Lyra (Max Planck Institute for Astronomy), A. M. Mandell (GSFC/SEEC), K. E. Mandt (Johns Hopkins University APL), W. B. Moore (Hampton University and National Institute of Aerospace), D. Nna-Mvondo (NASA GSFC/USRA), Y.Notsu (Kyoto University), H.Maehara (Kyoto University), Y.Yamashiki (Kyoto University), K. Shibata (Kyoto University), L. D. Oman (GSFC/SEEC), R. A. Osten (STScI, JHU), A. Pavlov (GSFC/SEEC), R. M. Ramirez (ELSI), S. Rugheimer (University of St Andrews), J. E. Schlieder (GSFC/SEEC), J. D. Schnittman (NASA GSFC), E. L. Shock (Arizona State University), C. Sousa-Silva (Massachusetts Institute of Technology), M. J. Way (NASA GISS), Y. Yang (NASA GSFC), P. A. Young (Arizona State University), G. P. Zank (University of Alabama) 6 pages, the white paper submitted to the US National Academy of Sciences call on Exoplanet Science Strategy, (arXiv:1803.03751) 
"Life Beyond the Solar System: Space Weather and Its Impact on Habitable Worlds"Airapetian, V. S.; Danchi, W. C.; Dong, C. F.; Rugheimer, S.; Mlynczak, M.; Stevenson, K. B.; Henning, W. G.; Grenfell, J. L.; Jin, M.; Glocer, A.; Gronoff, G.; Lynch, B.; Johnstone, C.; Lueftinger, T.; Guedel, M.; Kobayashi, K.; Fahrenbach, A.; Hallinan, G.; Stamenkovic, V.; Cohen, O.; Kuang, W.; van der Holst, B.; Manchester, C.; Zank, G.; Verkhoglyadova, O.; Sojka, J.; Maehara, H.; Notsu, Y.; Yamashiki, Y.; France, K.; Lopez Puertas, M.; Funke, B.; Jackman, C.; Kay, C.; Leisawitz, D.; Alexander, D.5 pages, the white paper was submitted to the National Academy of Sciences in support of the Astrobiology Science Strategy for the Search for Life in the Universe,(arXiv:1801.07333) 
"High Dispersion Spectroscopy of solar-type superflare stars"   Yuta Notsu   RHESSI Science Nugget No. 254    (Published on June 8th 2015.)

Articles in Japanese


「京都府立洛北高等学校・附属中学校 卒業生メッセージ (2023年9月)」  link(pdf) 
「環境問題としての光害―天文学の観点から―」柴田一成、野上大作、前原裕之、野津湧太「環境技術」2020年(49巻)3号 pp.138-142  Link 
「ススメ!理 系 目指せ大学院博士課程: 学部時代に、『Nature』に共著者として名を連ね、 今回の論文はアメリカで注目を集める 」大学ジャーナル 2019年12月号   pdf 
「太陽型星のスーパーフレア」 : 野津 湧太,柴田 一成特集記事「惑星ラボからこんにちは! 〜京都大学宇宙総合学研究ユニット〜」の1記事    日本惑星科学会学会誌「遊・星・人」2017年4号(12月発行) pp.159-168    目次   pdf 
「生命誕生と太陽フレア -新説:生命に必要な環境と材料は太陽フレアで作られた!?」「[特集]太陽フレア 〜地球の生命を支える恵みの嵐か、災いをもたらす恐ろしい嵐か〜」の1記事   milsil (国立科学博物館情報誌) 2017年第4号(7月発行)    link 
「スーパーフレアの謎」Kyoto Science Sequenceさん作成の研究紹介リーフレット   link 
「僕たちにとってのスーパーフレア」   野津翔太・野津湧太   京一中洛北高校同窓会誌「あかね」 第52号 2014年10月発行,   目次
Open Astronomy 京大コラム  「No.7 遠い星々のフレア観測」, 「No.8 スーパーフレアの謎」   野津翔太・野津湧太の2名にて担当した回。   Open Astronomyという天体写真共有アプリ(無料)で読める記事で、京大宇宙物理・附属天文台関係の研究を紹介している一連のコラム。
「特集:太陽型星におけるスーパーフレア   (4)スーパーフレア星と巨大黒点」   野津湧太   天文月報   2014年7月号   p.367-374,         ※天文月報2014年5,7,9月号に計6記事掲載された特集記事の一つ。    ※ 2014年5月号,   2014年9月号 
「京都大学発トピックス 太陽型星におけるスーパーフレアを発見 学部生で論文を発表した 太陽研究のガリレオたち」  柴山拓也、野津翔太、野津湧太の3人で受けたインタビュー記事   京都大学入学案内 知と自由への誘い 2014 p.7   記事本文

Accepted Observing Proposals  

(The followings may not be a complete list ....)
"A unified understanding of flare profile changes of chromospheric lines with the Balmer jump ratio."   Notsu, Y. et al. (as PI), 2020, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 5 half nights   (2020 Q1, ID:  CU07)
"A unified understanding of flare profile changes of chromospheric lines with the Balmer jump ratio"   Notsu, Y. et al. (as PI), 2020, ARCSAT 0.5m telescope at Apache Point Observatory for 7 nights (2020 Q4, ID: AS08)
"Spectroscopic monitoring observations of M-dwarf superflare stars, simultaneously with ARCSAT0.5m photometric observations"   Notsu, Y. et al. (as PI), 2019, ARCSAT 0.5m telescope at Apache Point Observatory for 3 nights (2019 Q4, ID: AS08)
"Spectroscopic monitoring observations of M-dwarf superflare stars, simultaneously with ARCSAT0.5m photometric observations (Joint proposal of CU and UW teams)"   Notsu, Y. et al. (as PI), 2019, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 3 half nights   (2019 Q4, ID:  UW10)
"Spectroscopic monitoring observations of M-dwarf superflare star EV Lac, simultaneously with TESS Cycle-2 Sector 16 and ARCSAT0.5m photometric observations (Joint proposal of CU and UW teams)"   Notsu, Y. et al. (as PI), 2019, ARCSAT 0.5m telescope at Apache Point Observatory for 7 nights (2019 Q3, ID: AS08)
"Spectroscopic monitoring observations of M-dwarf superflare star EV Lac, simultaneously with TESS Cycle-2 Sector 16 and ARCSAT0.5m photometric observations (Joint proposal of CU and UW teams)"   Notsu, Y. et al. (as PI), 2019, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 6 half nights   (2019 Q3, ID:  UW03 & CU06)
"SOLAR-LIKE PERIODIC ACTIVITIES AND STELLAR FLARES FROM THE CLOSEST NEIGHBOUR PROXIMA CENTAURI"Enoto, T. et al. (as Co-I), 2019, NICER cycle 1 GO-program (ID: 2105), accepted proposal list
"Spectroscopic monitoring observations of superflare stars, simultaneously with ARCSAT0.5m photometric observations"   Notsu, Y. et al. (as PI), 2019, ARCSAT 0.5m telescope at Apache Point Observatory for 6 nights (2019 Q2, ID:AS04),   link
"Sectroscopic monitoring observations of superflare stars, simultaneously with ARCSAT0.5m photometric observations"   Notsu, Y. et al. (as PI), 2019, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 3 half nights (2019 Q2, ID:UW09),   link
"Spectroscopic monitoring observations of superflare stars, simultaneously with TESS Cycle-1 Sector 7 and ARCSAT0.5m photometric observations"   Notsu, Y. et al. (as PI), 2019, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 6 half nights (2019 Q1, ID:UW03),   link
"Spectroscopic monitoring observations of G,K-type superflare candidate stars simultaneously with TESS Cycle-1 Sector 4 observation"   Notsu, Y. et al. (as PI), 2018, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 6 half nights (2018 Q4, ID:UW03),   link
"Spectroscopic observations of nearby solar-type superflare candidate stars observed by TESS"   Notsu, Y. et al. (as PI), 2018, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 4 half nights (2018 Q3, ID:UW05),   link
"Spectroscopic observations of nearby solar-type superflare candidate stars"   Notsu, Y. et al. (as PI), 2018, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 3 half nights (2018 Q2, ID:UW08),   link 
"Spectroscopic observations of nearby solar-type superflare candidate stars"   Notsu, Y. et al. (as PI), 2018, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 7 half nights (2018 Q1, ID:UW10),   link 
" Spectroscopic observations of solar-type superflare stars found from Kepler short (1-min) time cadence data"   Notsu, Y. et al. (as PI), 2017, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 6 half nights (2017 Q4, ID:UW02),   link 
" Spectroscopic observations of solar-type superflare stars found from Kepler short (1-min) time cadence data"   Notsu, Y. et al. (as PI), 2017, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 3 half nights (2017 Q3, ID:UW07),   link 
" Spectroscopic observations of solar-type superflare stars found from Kepler short (1-min) time cadence data"   Notsu, Y. et al. (as PI), 2017, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 3 half nights (2017 Q2, ID:UW08),   link 
"Spectroscopic observations of slowly-rotating Sun-like stars with large starspots"   Notsu, Y. et al. (as PI), 2016, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 4 half nights (2016 Q4, ID:UW06),   link 
"高い磁気活動を示す太陽型星の差動回転"   Notsu, Y. et al. (as PI), 2016, OAO/HIDES-F for 8 nights (OAO Normal Program, ID: 16B-1-CN06),   link
"Spectroscopic observations of slowly-rotating Sun-like stars with large starspots"   Notsu, Y. et al. (as PI), 2016, Echelle Spectrograph of ARC3.5m telescope at Apache Point Observatory for 4 half nights (2016 Q3, ID:UW03),   link 
"巨大黒点を持つ明るい太陽型星の高分散分光観測II"   Notsu, Y. et al. (as PI), 2016, OAO/HIDES-F for 3 nights (OAO Normal Program, ID: 16A-1-CN09),   link
"巨大黒点を持つ明るい太陽型星の高分散分光観測"   Notsu, Y. et al. (as PI), 2015, OAO/HIDES-F for 4 nights (OAO Normal Program, ID: 15B-1-CN08),   link
"明るいスーパーフレア星の高分散分光観測"   Notsu, Y. et al. (as PI), 2015, OAO/HIDES-F for 2 nights (OAO Normal Program, ID: 15A-06),   link
"強いX線放射を示すG型星の高分散分光観測"   Notsu, S. et al. (as Co-I), 2014, OAO/HIDES-F for 7 nights (OAO Normal Program, ID: 14B-05),  link
"High dispersion spectroscopy of slowly-rotating superflare stars"   Notsu, Y. et al. (as PI), 2014, Subaru/HDS for 0.5 nights (Subaru Service Program, ID: S14A-209S),  link
"強いX線放射を示すG型星の高分散分光観測"   Notsu, S. et al. (as Co-I), 2014, OAO/HIDES-F for 9 nights (OAO Normal Program, ID: 14A-15),  link
"High Dispersion Spectroscopy of Sun-like Stars showing Superflares"   Notsu, Y. et al. (as PI), 2013, Subaru/HDS for 2 nights (Subaru Normal Program, ID: S13A-045),  link
"High Dispersion Spectroscopy of Solar-Type Stars showing Superflares"   Notsu, Y. et al. (as PI), 2012, Subaru/HDS for 3 nights (Subaru Normal Program, ID: S12B-111),  link
"High Dispersion Spectroscopy of a G-Type Star Causing Superflares"   Notsu, Y. et al. (as PI), 2011, Subaru/HDS for 0.5 nights (Subaru Service Program, ID:S11B-137S),  link