Graduate School of Social Data Science
Kai Ikuta

Papers

1. The mass of TOI-654 b: A short-period sub-Neptune transiting a mid-M dwarf (Peer-reviewed)
Kai Ikuta, Norio Narita, Takuya Takarada, Teruyuki Hirano, Akihiko Fukui, Hiroyuki Tako Ishikawa, Yasunori Hori, Tadahiro Kimura, Takanori Kodama, Masahiro Ikoma, Jerome P. de Leon, Kiyoe Kawauchi, Masayuki Kuzuhara, Gaia Lacedelli, John H. Livingston, Mayuko Mori, Felipe Murgas, Enric Palle, Hannu Parviainen, Noriharu Watanabe, Izuru Fukuda, Hiroki Harakawa, Yuya Hayashi, Klaus Hodapp, Keisuke Isogai, Taiki Kagetani, Yugo Kawai, Vigneshwaran Krishnamurthy, Tomoyuki Kudo, Takashi Kurokawa, Nobuhiko Kusakabe, Jun Nishikawa, Stevanus K. Nugroho, Masashi Omiya, Takuma Serizawa, Aoi Takahashi, Huan-Yu Teng, Yuka Terada, Akitoshi Ueda, Sébastien Vievard, Yujie Zou, Takayuki Kotani, Motohide Tamura
2025.7
Link
2. Simple Model for Temporal Variations of Hα Spectrum by an Eruptive Filament from a Superflare on a Solar-type Star (Peer-reviewed)
Kai Ikuta, Kazunari Shibata
The Astrophysical Journal Vol.963,No.1,pp.50- 2024.3
doi Link Link
3. Starspot Mapping with Adaptive Parallel Tempering. II. Application to TESS Data for M-dwarf Flare Stars AU Microscopii, YZ Canis Minoris, and EV Lacertae (Peer-reviewed)
Kai Ikuta, Kosuke Namekata, Yuta Notsu, Hiroyuki Maehara, Soshi Okamoto, Satoshi Honda, Daisaku Nogami, Kazunari Shibata
The Astrophysical Journal Vol.948,No.1,pp.64- 2023.5
doi Link Link
4. Starspot Mapping with Adaptive Parallel Tempering. I. Implementation of Computational Code (Peer-reviewed)
Kai Ikuta, Hiroyuki Maehara, Yuta Notsu, Kosuke Namekata, Taichi Kato, Shota Notsu, Soshi Okamoto, Satoshi Honda, Daisaku Nogami, Kazunari Shibata
The Astrophysical Journal Vol.902,No.1,pp.73- 2020.10
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5. Time evolution of a white-light flare accompanied by probable postflare loops on the M-type dwarf EV Lacertae (Peer-reviewed)
Shinnosuke Ichihara, Daisaku Nogami, Kosuke Namekata, Hiroyuki Maehara, Yuta Notsu, Kai Ikuta, Satoshi Honda, Takato Otsu, Kazunari Shibata
Publications of the Astronomical Society of Japan 2025.8
doi Link
6. TOI-1846 b: A super-Earth in the radius valley orbiting a nearby M dwarf (Peer-reviewed)
Abderahmane Soubkiou, Khalid Barkaoui, Zouhair Benkhaldoun, Mourad Ghachoui, Jamila Chouqar, Benjamin V Rackham, Adam Burgasser, Emma Softich, Enric Pallé, Akihiko Fukui, Norio Narita, Felipe Murgas, Steve B Howell, Catherine A Clark, Colin Littlefield, Allyson Bieryla, Andrew W Boyle, David Ciardi, Karen Collins, Kevin I Collins, Jerome de Leon, Courtney D Dressing, Jason Eastman, Emma Esparza-Borges, Steven Giacalone, Holden Gill, Michaël Gillon, Kai Ikuta, J M Jenkins, Taiki Kagetani, David W Latham, Mayuko Mori, Hannu Parviainen, Emily Pass, G Ricker, Boris S Safonov, Arjun B Savel, Richard P Schwarz, Sara Seager, Ivan A Strakhov, Gregor Srdoc, R Vanderspek, Noriharu Watanabe, Cristilyn N Watkins, J Winn
Monthly Notices of the Royal Astronomical Society 2025.6
doi Link
7. Multi-band, Multi-epoch Photometry of the Spot-crossing System TOI-3884: Refined System Geometry and Spot Properties (Peer-reviewed)
Mayuko Mori, Akihiko Fukui, Teruyuki Hirano, Norio Narita, John H. Livingston, Khalid Barkaoui, Karen A. Collins, Jerome P. de Leon, Kai Ikuta, Yugo Kawai, Richard P. Schwarz, Avi Shporer, Gregor Srdoc
2025.6
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8. A transiting giant planet in orbit around a 0.2-solar-mass host star (Peer-reviewed)
Edward M. Bryant, Andrés Jordán, Joel D. Hartman, Daniel Bayliss, Elyar Sedaghati, Khalid Barkaoui, Jamila Chouqar, Francisco J. Pozuelos, Daniel P. Thorngren, Mathilde Timmermans, Jose Manuel Almenara, Igor V. Chilingarian, Karen A. Collins, Tianjun Gan, Steve B. Howell, Norio Narita, Enric Palle, Benjamin V. Rackham, Amaury H. M. J. Triaud, Gaspar Á. Bakos, Rafael Brahm, Melissa J. Hobson, Vincent Van Eylen, Pedro J. Amado, Luc Arnold, Xavier Bonfils, Artem Burdanov, Charles Cadieux, Douglas A. Caldwell, Victor Casanova, David Charbonneau, Catherine A. Clark, Kevin I. Collins, Tansu Daylan, Georgina Dransfield, Brice-Olivier Demory, Elsa Ducrot, Gareb Fernández-Rodríguez, Izuru Fukuda, Akihiko Fukui, Michaël Gillon, Rebecca Gore, Matthew J. Hooton, Kai Ikuta, Emmanuel Jehin, Jon M. Jenkins, Alan M. Levine, Colin Littlefield, Felipe Murgas, Kendra Nguyen, Hannu Parviainen, Didier Queloz, S. Seager, Daniel Sebastian, Gregor Srdoc, R. Vanderspek, Joshua N. Winn, Julien de Wit, Sebastián Zúñiga-Fernández
Nature Astronomy 2025.6
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9. 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 H<i>α</i> Line (Peer-reviewed)
Yuto Kajikiya, Kosuke Namekata, Yuta Notsu, Kai Ikuta, Hiroyuki Maehara, Bunei Sato, Daisaku Nogami
The Astrophysical Journal Vol.985,No.1,pp.136 2025.5
doi Link Link
10. The eccentricity distribution of warm sub-Saturns in <i>TESS</i> (Peer-reviewed)
Tyler R Fairnington, Jiayin Dong, Chelsea X Huang, Emma Nabbie, George Zhou, Duncan Wright, Karen A Collins, Jon M Jenkins, David W Latham, George Ricker, Samuel N Quinn, Sara Seager, Avi Shporer, Roland Vanderspek, Joshua N Winn, Calvin Ajizian, Akihiko Fukui, David Baker, Giuseppe Conzo, Robert Scott Fisher, Raquel Forés-Toribio, Tianjun Gan, Alexey Garmash, Kai Ikuta, Adam Lark, Jerome P de Leon, Katherine Linnenkohl, Christopher R Mann, Owen Mitchem, Mayuko Mori, Jose A Muñoz, Norio Narita, Adam Popowicz, Don Radford, Justus Randolph, Fabian Rodriguez Frustaglia, Richard P Schwarz, Chris Stockdale, Jiaqi Wang, Noriharu Watanabe, Francis P Wilkin, Krzysztof Sz Zieliński, Emma Esparza-Borges, Felipe Murgas, Enric Pallé, Parviainen Hannu, Selçuk Yalçınkaya, Ozgür Baştürk
Monthly Notices of the Royal Astronomical Society Vol.540,No.1,pp.1144-1162 2025.5
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11. Tidally Heated Sub-Neptunes, Refined Planetary Compositions, and Confirmation of a Third Planet in the TOI-1266 System (Peer-reviewed)
Michael Greklek-McKeon, Shreyas Vissapragada, Heather A. Knutson, Akihiko Fukui, Morgan Saidel, Jonathan Gomez Barrientos, W. Garrett Levine, Aida Behmard, Konstantin Batygin, Yayaati Chachan, Gautam Vasisht, Renyu Hu, Ryan Cloutier, David Latham, Mercedes López-Morales, Andrew Vanderburg, Carolyn Heffner, Paul Nied, Jennifer Milburn, Isaac Wilson, Diana Roderick, Kathleen Koviak, Tom Barlow, John F. Stone, Rocio Kiman, Judith Korth, Jerome P. de Leon, Izuru Fukuda, Yuya Hayashi, Masahiro Ikoma, Kai Ikuta, Keisuke Isogai, Yugo Kawai, Kiyoe Kawauchi, Nobuhiko Kusakabe, John H. Livingston, Mayuko Mori, Norio Narita, Motohide Tamura, Noriharu Watanabe, Gareb Fernández-Rodríguez
The Astronomical Journal Vol.169,No.6,pp.292 2025.5
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12. TOI-2015 b: A sub-Neptune in strong gravitational interaction with an outer non-transiting planet (Peer-reviewed)
K. Barkaoui, J. Korth, E. Gaidos, E. Agol, H. Parviainen, F. J. Pozuelos, E. Palle, N. Narita, S. Grimm, M. Brady, J. L. Bean, G. Morello, B.V. Rackham, A. J. Burgasser, V. Van Grootel, B. Rojas-Ayala, A. Seifahrt, E. Marfil, V. M. Passegger, M. Stalport, M. Gillon, K. A. Collins, A. Shporer, S. Giacalone, S. Yalçınkaya, E. Ducrot, M. Timmermans, A. H. M. J. Triaud, J. de Wit, A. Soubkiou, C. N. Watkins, C. Aganze, R. Alonso, P. J. Amado, R. Basant, Ö. Baştürk, Z. Benkhaldoun, A. Burdanov, Y. Calatayud-Borras, J. Chouqar, D. M. Conti, K. I. Collins, F. Davoudi, L. Delrez, C. D. Dressing, J. de Leon, M. Dévora-Pajares, B. O. Demory, G. Dransfield, E. Esparza-Borges, G. Fernández-Rodriguez, I. Fukuda, A. Fukui, P. P. M. Gallardo, L. Garcia, N. A. Garcia, M. Ghachoui, S. Geraldía-González, Y. Gómez Maqueo Chew, J. González-Rodríguez, M. N. Günther, Y. Hayashi, K. Horne, M. J. Hooton, C. C. Hsu, K. Ikuta, K. Isogai, E. Jehin, J. M. Jenkins, K. Kawauchi, T. Kagetani, Y. Kawai, D. Kasper, J. F. Kielkopf, P. Klagyivik, G. Lacedelli, D. W. Latham, F. Libotte, R. Luque, J. H. Livingston, L. Mancini, B. Massey, M. Mori, S. Muñoz Torres, F. Murgas, P. Niraula, J. Orell-Miquel, David Rapetti, R. Rebolo-López, G. Ricker, R. Papini, P. P. Pedersen, A. Peláez-Torres, J. A. Pérez-Prieto, E. Poultourtzidis, P. M. Rodriguez, D. Queloz, A. B. Savel, N. Schanche, M. Sánchez-Benavente, L. Sibbald, R. Sefako, S. Sohy, A. Sota, R. P. Schwarz, S. Seager, D. Sebastian, J. Southworth, M. Stangret, G. Stefánsson, J. Stürmer, G. Srdoc, S. J. Thompson, Y. Terada, R. Vanderspek, G. Wang, N. Watanabe, F. P. Wilkin, J. Winn, R. D. Wells, C. Ziegler, S. Zúñiga-Fernández
Astronomy & Astrophysics Vol.695,pp.A281 2025.3
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13. TOI-5108 b and TOI 5786 b: Two transiting sub-Saturns detected and characterized with TESS, MaHPS, and SOPHIE (Peer-reviewed)
Luis Thomas, Guillaume Hébrard, Hanna Kellermann, Judith Korth, Neda Heidari, Thierry Forveille, Sérgio G. Sousa, Laura Schöller, Arno Riffeser, Claus Gössl, Juan Serrano Bell, Flavien Kiefer, Nathan Hara, Frank Grupp, Juliana Ehrhardt, Felipe Murgas, Karen A. Collins, Allyson Bieryla, Hannu Parviainen, Alexandr A. Belinski, Emma Esparza-Borges, David R. Ciardi, Catherine A. Clark, Akihiko Fukui, Emily A. Gilbert, Ulrich Hopp, Kai Ikuta, Jon M. Jenkins, David W. Latham, Norio Narita, Louise D. Nielsen, Samuel N. Quinn, Enric Palle, Jan-Niklas Pippert, Alex S. Polanski, Christoph Ries, Michael Schmidt, Richard P. Schwarz, Sara Seager, Ivan A. Strakhov, Stephanie Striegel, Julian C. van Eyken, Noriharu Watanabe, Cristilyn N. Watkins, Joshua N. Winn, Carl Ziegler, Raphael Zöller
Astronomy & Astrophysics Vol.694,pp.A143- 2025.2
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14. Multiwavelength Campaign Observations of a Young Solar-type Star, EK Draconis. II. Understanding Prominence Eruption through Data-driven Modeling and Observed Magnetic Environment (Peer-reviewed)
Kosuke Namekata, Kai Ikuta, Pascal Petit, Vladimir S. Airapetian, Aline A. Vidotto, Petr Heinzel, Jiří Wollmann, Hiroyuki Maehara, Yuta Notsu, Shun Inoue, Stephen Marsden, Julien Morin, Sandra V. Jeffers, Coralie Neiner, Rishi R. Paudel, Antoaneta A. Avramova-Boncheva, Keith Gendreau, Kazunari Shibata
The Astrophysical Journal 2024.12
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15. Sun-as-a-star Analysis of the X1.6 Flare on 2023 August 5: Dynamics of Postflare Loops in Spatially Integrated Observational Data (Peer-reviewed)
Takato Otsu, Ayumi Asai, Kai Ikuta, Kazunari Shibata
The Astrophysical Journal Letters 2024.10
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16. Validation of up to seven TESS planet candidates through multi-colour transit photometry using MuSCAT2 data (Peer-reviewed)
A. Peláez-Torres, E. Esparza-Borges, E. Pallé, H. Parviainen, F. Murgas, G. Morello, M. R. Zapatero-Osorio, J. Korth, N. Narita, A. Fukui, I. Carleo, R. Luque, N. Abreu García, K. Barkaoui, A. Boyle, V. J. S. Béjar, Y. Calatayud-Borras, D. V. Cheryasov, J. L. Christiansen, D. R. Ciardi, G. Enoc, Z. Essack, I. Fukuda, G. Furesz, D. Galán, S. Geraldía-González, S. Giacalone, H. Gill, E. J. Gonzales, Y. Hayashi, K. Ikuta, K. Isogai, T. Kagetani, Y. Kawai, K. Kawauchi, P. Klagyvik, T. Kodama, N. Kusakabe, A. Laza-Ramos, J. P. de Leon, J. H. Livingston, M. B. Lund, A. Madrigal-Aguado, P. Meni, M. Mori, S. Muñoz Torres, J. Orell-Miquel, M. Puig, G. Ricker, M. Sánchez-Benavente, A. B. Savel, J. E. Schlieder, R. P. Schwarz, R. Sefako, P. Sosa-Guillén, M. Stangret, C. Stockdale, M. Tamura, Y. Terada, J. D. Twicken, N. Watanabe, J. Winn, S. G. Zheltoukhov, C. Ziegler, Y. Zou
Astronomy & Astrophysics Vol.690,pp.A62- 2024.9
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17. Low abundances of TiO and VO on the dayside of KELT-9 b: Insights from ground-based photometric observations (Peer-reviewed)
Yuya Hayashi, Norio Narita, Akihiko Fukui, Quentin Changeat, Kiyoe Kawauchi, Kai Ikuta, Enric Palle, Felipe Murgas, Hannu Parviainen, Emma Esparza-Borges, Alberto Peláez-Torres, Pedro Pablo Meni Gallardo, Giuseppe Morello, Gareb Fernández-Rodríguez, Néstor Abreu García, Sara Muñoz Torres, Yéssica Calatayud Borrás, Pilar Montañés Rodríguez, John H Livingston, Noriharu Watanabe, Jerome P de Leon, Yugo Kawai, Keisuke Isogai, Mayuko Mori
Publications of the Astronomical Society of Japan Vol.76,No.5,pp.1131-1141 2024.9
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18. TOI-1408: Discovery and Photodynamical Modeling of a Small Inner Companion to a Hot Jupiter Revealed by Transit Timing Variations (Peer-reviewed)
Judith Korth, Priyanka Chaturvedi, Hannu Parviainen, Ilaria Carleo, Michael Endl, Eike W. Guenther, Grzegorz Nowak, Carina M. Persson, Phillip J. MacQueen, Alexander J. Mustill, Juan Cabrera, William D. Cochran, Jorge Lillo-Box, David Hobbs, Felipe Murgas, Michael Greklek-McKeon, Hanna Kellermann, Guillaume Hébrard, Akihiko Fukui, Enric Pallé, Jon M. Jenkins, Joseph D. Twicken, Karen A. Collins, Samuel N. Quinn, Ján Šubjak, Paul G. Beck, Davide Gandolfi, Savita Mathur, Hans J. Deeg, David W. Latham, Simon Albrecht, David Barrado, Isabelle Boisse, Hervé Bouy, Xavier Delfosse, Olivier Demangeon, Rafael A. García, Artie P. Hatzes, Neda Heidari, Kai Ikuta, Petr Kabáth, Heather A. Knutson, John Livingston, Eder Martioli, María Morales-Calderón, Giuseppe Morello, Norio Narita, Jaume Orell-Miquel, Hanna L. M. Osborne, Dinil B. Palakkatharappil, Viktoria Pinter, Seth Redfield, Howard M. Relles, Richard P. Schwarz, Sara Seager, Avi Shporer, Marek Skarka, Gregor Srdoc, Monika Stangret, Luis Thomas, Vincent Van Eylen, Noriharu Watanabe, Joshua N. Winn
The Astrophysical Journal Letters Vol.971,No.2,pp.L28 2024.8
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19. The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M Dwarfs (Peer-reviewed)
Yasunori Hori, Akihiko Fukui, Teruyuki Hirano, Norio Narita, Jerome P. de Leon, Hiroyuki Tako Ishikawa, Joel D. Hartman, Giuseppe Morello, Nestor Abreu García, Leticia Álvarez Hernández, Víctor J. S. Béjar, Yéssica Calatayud-Borras, Ilaria Carleo, Gareb Enoc, Emma Esparza-Borges, Izuru Fukuda, Daniel Galán, Samuel Geraldía-González, Yuya Hayashi, Masahiro Ikoma, Kai Ikuta, Keisuke Isogai, Taiki Kagetani, Yugo Kawai, Kiyoe Kawauchi, Tadahiro Kimura, Takanori Kodama, Judith Korth, Nobuhiko Kusakabe, Andrés Laza-Ramos, John H. Livingston, Rafael Luque, Kohei Miyakawa, Mayuko Mori, Felipe Murgas, Jaume Orell-Miquel, Enric Palle, Hannu Parviainen, Alberto Peláez-Torres, Marta Puig-Subirà, Manuel Sánchez-Benavente, Paula Sosa-Guillén, Monika Stangret, Yuka Terada, Sara Muñoz Torres, Noriharu Watanabe, Gaspar Á. Bakos, Khalid Barkaoui, Charles Beichman, Zouhair Benkhaldoun, Andrew W. Boyle, David R. Ciardi, Catherine A. Clark, Karen A. Collins, Kevin I. Collins, Dennis M. Conti, Ian J.M. Crossfield, Mark E. Everett, Elise Furlan, Mourad Ghachoui, Michaël Gillon, Erica J. Gonzales, Jesus Higuera, Keith Horne, Steve B. Howell, Emmanuël Jehin, Kathryn V. Lester, Michael B. Lund, Rachel Matson, Elisabeth C. Matthews, Francisco J. Pozuelos, Boris S. Safonov, Joshua E. Schlieder, Richard P. Schwarz, Ramotholo Sefako, Gregor Srdoc, Ivan A. Strakhov, Mathilde Timmermans, William C. Waalkes, Carl Ziegler, David Charbonneau, Zahra Essack, Natalia M. Guerrero, Hiroki Harakawa, Christina Hedges, Masato Ishizuka, Jon M. Jenkins, Mihoko Konishi, Takayuki Kotani, Tomoyuki Kudo, Takashi Kurokawa, Masayuki Kuzuhara, Jun Nishikawa, Masashi Omiya, George R. Ricker, Sara Seager, Takuma Serizawa, Stephanie Striegel, Motohide Tamura, Akitoshi Ueda, Roland Vanderspek, Sébastien Vievard, Joshua N. Winn
The Astronomical Journal Vol.167,No.6,pp.289 2024.5
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20. Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Transmission Spectroscopy (Peer-reviewed)
Masayuki Kuzuhara, Akihiko Fukui, John H. Livingston, José A. Caballero, Jerome P. de Leon, Teruyuki Hirano, Yui Kasagi, Felipe Murgas, Norio Narita, Masashi Omiya, Jaume Orell-Miquel, Enric Palle, Quentin Changeat, Emma Esparza-Borges, Hiroki Harakawa, Coel Hellier, Yasunori Hori, Kai Ikuta, Hiroyuki Tako Ishikawa, Takanori Kodama, Takayuki Kotani, Tomoyuki Kudo, Juan C. Morales, Mayuko Mori, Evangelos Nagel, Hannu Parviainen, Volker Perdelwitz, Ansgar Reiners, Ignasi Ribas, Jorge Sanz-Forcada, Bun’ei Sato, Andreas Schweitzer, Hugo M. Tabernero, Takuya Takarada, Taichi Uyama, Noriharu Watanabe, Mathias Zechmeister, Néstor Abreu García, Wako Aoki, Charles Beichman, Víctor J. S. Béjar, Timothy D. Brandt, Yéssica Calatayud-Borras, Ilaria Carleo, David Charbonneau, Karen A. Collins, Thayne Currie, John P. Doty, Stefan Dreizler, Gareb Fernández-Rodríguez, Izuru Fukuda, Daniel Galán, Samuel Geraldía-González, Josafat González-Garcia, Yuya Hayashi, Christina Hedges, Thomas Henning, Klaus Hodapp, Masahiro Ikoma, Keisuke Isogai, Shane Jacobson, Markus Janson, Jon M. Jenkins, Taiki Kagetani, Eiji Kambe, Yugo Kawai, Kiyoe Kawauchi, Eiichiro Kokubo, Mihoko Konishi, Judith Korth, Vigneshwaran Krishnamurthy, Takashi Kurokawa, Nobuhiko Kusakabe, Jungmi Kwon, Andrés Laza-Ramos, Florence Libotte, Rafael Luque, Alberto Madrigal-Aguado, Yuji Matsumoto, Dimitri Mawet, Michael W. McElwain, Pedro Pablo Meni Gallardo, Giuseppe Morello, Sara Muñoz Torres, Jun Nishikawa, Stevanus K. Nugroho, Masahiro Ogihara, Alberto Peláez-Torres, David Rapetti, Manuel Sánchez-Benavente, Martin Schlecker, Sara Seager, Eugene Serabyn, Takuma Serizawa, Monika Stangret, Aoi Takahashi, Huan-Yu Teng, Motohide Tamura, Yuka Terada, Akitoshi Ueda, Tomonori Usuda, Roland Vanderspek, Sébastien Vievard, David Watanabe, Joshua N. Winn, Maria Rosa Zapatero Osorio
The Astrophysical Journal Letters Vol.967,No.2,pp.L21 2024.5
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21. Three short-period Earth-sized planets around M dwarfs discovered by TESS: TOI-5720 b, TOI-6008 b, and TOI-6086 b (Peer-reviewed)
K. Barkaoui, R.P. Schwarz, N. Narita, P. Mistry, C. Magliano, T. Hirano, M. Maity, A.J. Burgasser, B.V. Rackham, F. Murgas, F.J. Pozuelos, K.G. Stassun, M.E. Everett, D.R. Ciardi, C. Lamman, C. Aganze, E. Esparza-Borges, K.A. Collins, G. Covone, J. de Leon, M. D'evora-Pajares, J. de Wit, Izuru Fukuda, A. Fukui, R. Gerasimov, M. Gillon, Y. Hayashi, S.B. Howell, M. Ikoma, K. Ikuta, J.M. Jenkins, P.R. Karpoor, Y. Kawai, T. Kimura, T. Kotani, D.W. Latham, M. Mori, e, H. Parviainen, Y.G. Patel, G. Ricker, H.M. Relles, A. Shporer, S. Seager, E. Softich, G. Srdoc, M. Tamura, C.A. Theissen, J.D. Twicken, R. Vanderspek, N. Watanabe, C.N. Watkins, J.N. Winn, B. Wohler
Astronomy &amp; Astrophysics 2024.5
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22. Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3
Michaël Gillon, Peter P. Pedersen, Benjamin V. Rackham, Georgina Dransfield, Elsa Ducrot, Khalid Barkaoui, Artem Y. Burdanov, Urs Schroffenegger, Yilen Gómez Maqueo Chew, Susan M. Lederer, Roi Alonso, Adam J. Burgasser, Steve B. Howell, Norio Narita, Julien de Wit, Brice-Olivier Demory, Didier Queloz, Amaury H. M. J. Triaud, Laetitia Delrez, Emmanuël Jehin, Matthew J. Hooton, Lionel J. Garcia, Clàudia Jano Muñoz, Catriona A. Murray, Francisco J. Pozuelos, Daniel Sebastian, Mathilde Timmermans, Samantha J. Thompson, Sebastián Zúñiga-Fernández, Jesús Aceituno, Christian Aganze, Pedro J. Amado, Thomas Baycroft, Zouhair Benkhaldoun, David Berardo, Emeline Bolmont, Catherine A. Clark, Yasmin T. Davis, Fatemeh Davoudi, Zoë L. de Beurs, Jerome P. de Leon, Masahiro Ikoma, Kai Ikuta, Keisuke Isogai, Izuru Fukuda, Akihiko Fukui, Roman Gerasimov, Mourad Ghachoui, Maximilian N. Günther, Samantha Hasler, Yuya Hayashi, Kevin Heng, Renyu Hu, Taiki Kagetani, Yugo Kawai, Kiyoe Kawauchi, Daniel Kitzmann, Daniel D. B. Koll, Monika Lendl, John H. Livingston, Xintong Lyu, Erik A. Meier Valdés, Mayuko Mori, James J. McCormac, Felipe Murgas, Prajwal Niraula, Enric Pallé, Ilse Plauchu-Frayn, Rafael Rebolo, Laurence Sabin, Yannick Schackey, Nicole Schanche, Franck Selsis, Alfredo Sota, Manu Stalport, Matthew R. Standing, Keivan G. Stassun, Motohide Tamura, Yuka Terada, Christopher A. Theissen, Martin Turbet, Valérie Van Grootel, Roberto Varas, Noriharu Watanabe, Francis Zong Lang
Nature Astronomy 2024.5
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23. Characterization of starspots on a young M-dwarf K2-25: multiband observations of stellar photometric variability and planetary transits (Peer-reviewed)
Mayuko Mori, Kai Ikuta, Akihiko Fukui, Norio Narita, Jerome P de Leon, John H Livingston, Masahiro Ikoma, Yugo Kawai, Kiyoe Kawauchi, Felipe Murgas, Enric Palle, Hannu Parviainen, Gareb Fernández Rodríguez, Yuka Terada, Noriharu Watanabe, Motohide Tamura
Monthly Notices of the Royal Astronomical Society 2024.4
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24. TOI-1199 b and TOI-1273 b: Two new transiting hot Saturns detected and characterized with SOPHIE and TESS (Peer-reviewed)
J. Serrano Bell, R. F. Díaz, G. Hébrard, E. Martioli, N. Heidari, S. Sousa, I. Boisse, J. M. Almenara, J. Alonso-Santiago, S. C. C. Barros, P. Benni, A. Bieryla, X. Bonfils, D. A. Caldwell, D. R. Ciardi, K. A. Collins, P. Cortés-Zuleta, S. Dalal, J. P. de León, M. Deleuil, X. Delfosse, O. D. S. Demangeon, E. Esparza-Borges, T. Forveille, A. Frasca, A. Fukui, J. Gregorio, N. M. Guerrero, S. B. Howell, S. Hoyer, K. Ikuta, J. M. Jenkins, F. Kiefer, D. W. Latham, G. Marino, E. J. Michaels, C. Moutou, F. Murgas, N. Narita, E. Palle, H. Parviainen, N. C. Santos, K. G. Stassun, J. N. Winn
Astronomy & Astrophysics Vol.684,pp.A6 2024.3
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25. Apache Point Observatory (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 (Peer-reviewed)
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 Shibata
The Astrophysical Journal Vol.961,No.2,pp.189 2024.1
doi Link Link
26. Multiwavelength Campaign Observations of a Young Solar-type Star, EK Draconis. I. Discovery of Prominence Eruptions Associated with Superflares (Peer-reviewed)
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 Shibata
The Astrophysical Journal 2024.1
doi Link Link
27. A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067 (Peer-reviewed)
R. Luque, H. P. Osborn, A. Leleu, E. Pallé, A. Bonfanti, O. Barragán, T. G. Wilson, C. Broeg, A. Collier Cameron, M. Lendl, P. F. L. Maxted, Y. Alibert, D. Gandolfi, J.-B. Delisle, M. J. Hooton, J. A. Egger, G. Nowak, M. Lafarga, D. Rapetti, J. D. Twicken, J. C. Morales, I. Carleo, J. Orell-Miquel, V. Adibekyan, R. Alonso, A. Alqasim, P. J. Amado, D. R. Anderson, G. Anglada-Escudé, T. Bandy, T. Bárczy, D. Barrado Navascues, S. C. C. Barros, W. Baumjohann, D. Bayliss, J. L. Bean, M. Beck, T. Beck, W. Benz, N. Billot, X. Bonfils, L. Borsato, A. W. Boyle, A. Brandeker, E. M. Bryant, J. Cabrera, S. Carrazco-Gaxiola, D. Charbonneau, S. Charnoz, D. R. Ciardi, W. D. Cochran, K. A. Collins, I. J. M. Crossfield, Sz. Csizmadia, P. E. Cubillos, F. Dai, M. B. Davies, H. J. Deeg, M. Deleuil, A. Deline, L. Delrez, O. D. S. Demangeon, B.-O. Demory, D. Ehrenreich, A. Erikson, E. Esparza-Borges, B. Falk, A. Fortier, L. Fossati, M. Fridlund, A. Fukui, J. Garcia-Mejia, S. Gill, M. Gillon, E. Goffo, Y. Gómez Maqueo Chew, M. Güdel, E. W. Guenther, M. N. Günther, A. P. Hatzes, Ch. Helling, K. M. Hesse, S. B. Howell, S. Hoyer, K. Ikuta, K. G. Isaak, J. M. Jenkins, T. Kagetani, L. L. Kiss, T. Kodama, J. Korth, K. W. F. Lam, J. Laskar, D. W. Latham, A. Lecavelier des Etangs, J. P. D. Leon, J. H. Livingston, D. Magrin, R. A. Matson, E. C. Matthews, C. Mordasini, M. Mori, M. Moyano, M. Munari, F. Murgas, N. Narita, V. Nascimbeni, G. Olofsson, H. L. M. Osborne, R. Ottensamer, I. Pagano, H. Parviainen, G. Peter, G. Piotto, D. Pollacco, D. Queloz, S. N. Quinn, A. Quirrenbach, R. Ragazzoni, N. Rando, F. Ratti, H. Rauer, S. Redfield, I. Ribas, G. R. Ricker, A. Rudat, L. Sabin, S. Salmon, N. C. Santos, G. Scandariato, N. Schanche, J. E. Schlieder, S. Seager, D. Ségransan, A. Shporer, A. E. Simon, A. M. S. Smith, S. G. Sousa, M. Stalport, Gy. M. Szabó, N. Thomas, A. Tuson, S. Udry, A. M. Vanderburg, V. Van Eylen, V. Van Grootel, J. Venturini, I. Walter, N. A. Walton, N. Watanabe, J. N. Winn, T. Zingales
Nature Vol.623,No.7989,pp.932-937 2023.11
doi Link Link
28. The mass of TOI-519 b: A close-in giant planet transiting a metal-rich mid-M dwarf (Peer-reviewed)
Taiki Kagetani, Norio Narita, Tadahiro Kimura, Teruyuki Hirano, Masahiro Ikoma, Hiroyuki Tako ISHIKAWA, Steven Giacalone, Akihiko Fukui, Takanori Kodama, Rebecca Gore, Ashley Schroeder, Yasunori Hori, Kiyoe Kawauchi, Noriharu Watanabe, Mayuko Mori, Yujie Zou, Kai Ikuta, Vigneshwaran Krishnamurthy, Jon Zink, Kevin Hardegree-Ullman, Hiroki Harakawa, Tomoyuki Kudo, Takayuki Kotani, Takashi Kurokawa, Nobuhiko Kusakabe, Masayuki Kuzuhara, Jerome de Leon, John Livingston, Jun Nishikawa, Masashi Omiya, Enric Palle, Hannu Parviainen, Takuma Serizawa, Huan-Yu Teng, Akitoshi Ueda, Motohide Tamura
Publications of the Astronomical Society of Japan 2023.5
doi Link
29. An Earth-sized Planet around an M5 Dwarf Star at 22 pc (Peer-reviewed)
Teruyuki Hirano, John Livingston, Sascha Grziwa, Kristine W. F. Lam, Yui Kasagi, Norio Narita, Hiroyuki Tako ISHIKAWA, Kohei Miyakawa, Luisa Maria Serrano, Yuji Matsumoto, Eiichiro Kokubo, Tadahiro Kimura, Masahiro Ikoma, John, Given Names Deactivated Family Name Deactivated, Huan-Yu Teng, William Cochran, Akihiko Fukui, Davide Gandolfi, Eike Guenther, Yasunori Hori, Kai Ikuta, Kiyoe Kawauchi, Emil Knudstrup, Judith Korth, Takayuki Kotani, Vigneshwaran Krishnamurthy, Tomoyuki Kudo, Takashi Kurokawa, Masayuki Kuzuhara, Rafael Luque, Mayuko Mori, Jun Nishikawa, 大宮 正士, Jaume Orell-Miquel, Enric Palle, Seth Redfield, Eugene Serabyn, A. M. S. Smith, Aoi Takahashi, Takuya Takarada, Akitoshi Ueda, Vincent Van Eylen, Sebastien VIEVARD, Motohide TAMURA, Bunei Sato
The Astronomical Journal Vol.165,No.3,pp.131 2023.3
doi Link Link
30. TOI-1696: A Nearby M4 Dwarf with a 3 R <sub>⊕</sub> Planet in the Neptunian Desert (Peer-reviewed)
Mayuko Mori, John H. Livingston, Jerome de Leon, Norio Narita, Teruyuki Hirano, Akihiko Fukui, Karen A. Collins, Naho Fujita, Yasunori Hori, Hiroyuki Tako Ishikawa, Kiyoe Kawauchi, Keivan G. Stassun, Noriharu Watanabe, Steven Giacalone, Rebecca Gore, Ashley Schroeder, Courtney D. Dressing, Allyson Bieryla, Eric L. N. Jensen, Bob Massey, Avi Shporer, Masayuki Kuzuhara, David Charbonneau, David R. Ciardi, John P. Doty, Emma Esparza-Borges, Hiroki Harakawa, Klaus Hodapp, Masahiro Ikoma, Kai Ikuta, Keisuke Isogai, Jon M. Jenkins, Taiki Kagetani, Tadahiro Kimura, Takanori Kodama, Takayuki Kotani, Vigneshwaran Krishnamurthy, Tomoyuki Kudo, Seiya Kurita, Takashi Kurokawa, Nobuhiko Kusakabe, David W. Latham, Brian McLean, Felipe Murgas, Jun Nishikawa, Taku Nishiumi, Masashi Omiya, Hugh P. Osborn, Enric Palle, Hannu Parviainen, George R. Ricker, Sara Seager, Takuma Serizawa, Huan-Yu Teng, Yuka Terada, Joseph D. Twicken, Akitoshi Ueda, Rol, V, erspek, S{\'{e } }bastien Vievard, Joshua N. Winn, Yujie Zou, Motohide Tamura
The Astronomical Journal Vol.163,No.6,pp.298 2022.6
doi Link Link
31. Time-resolved spectroscopy and photometry of M dwarf flare star YZ Canis Minoris with OISTER and TESS: Blue asymmetry in the Hα line during the non-white light flare (Peer-reviewed)
Maehara, Hiroyuki, Notsu, Yuta, Namekata, Kousuke, Honda, Satoshi, Kowalski, Adam F., Katoh, Noriyuki, Ohshima, Tomohito, Iida, Kota, Oeda, Motoki, Murata, Katsuhiro L., Yamanaka, Masayuki, Takagi, Kengo, Sasada, Mahito, Akitaya, Hiroshi, Ikuta, Kai, Okamoto, Soshi, Nogami, Daisaku, Shibata, Kazunari
Publications of the Astronomical Society of Japan 2021.2
doi
32. Statistical Properties of Superflares on Solar-type Stars: Results Using All of the Kepler Primary Mission Data (Peer-reviewed)
Soshi Okamoto, Yuta Notsu, Hiroyuki Maehara, Kosuke Namekata, Satoshi Honda, Kai Ikuta, Daisaku Nogami, Kazunari Shibata
The Astrophysical Journal 2021.1
doi
33. Temporal Evolution of Spatially Resolved Individual Star Spots on a Planet-hosting Solar-type Star: Kepler-17 (Peer-reviewed)
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, Kazunari Shibata
The Astrophysical Journal Vol.891,No.2,pp.103 2020.3
doi Link Link
34. Do Kepler Superflare Stars Really Include Slowly Rotating Sun-like Stars?—Results Using APO 3.5 m Telescope Spectroscopic Observations and Gaia-DR2 Data (Peer-reviewed)
Notsu, Yuta, Maehara, Hiroyuki, Honda, Satoshi, Hawley, Suzanne L., Davenport, James R. A., Namekata, Kosuke, Notsu, Shota, Ikuta, Kai, Nogami, Daisaku, Shibata, Kazunari
The Astrophysical Journal Vol.2019 2019.5
doi
35. Lifetimes and Emergence/Decay Rates of Star Spots on Solar-type Stars Estimated by Kepler Data in Comparison with Those of Sunspots (Peer-reviewed)
Kosuke Namekata, Hiroyuki Maehara, Yuta Notsu, Shin Toriumi, Hisashi Hayakawa, Kai Ikuta, Shota Notsu, Satoshi Honda, Daisaku Nogami, Kazunari Shibata
The Astrophysical Journal Vol.871,No.2,pp.187 2019.1
doi Link Link
36. Time-resolved spectroscopic observations of an M-dwarf flare star EV Lacertae during a flare (Peer-reviewed)
Honda, Satoshi, Notsu, Yuta, Namekata, Kosuke, Notsu, Shota, Maehara, Hiroyuki, Ikuta, Kai, Nogami, Daisaku, Shibata, Kazunari
Publications of the Astronomical Society of Japan 2018.8
doi
37. Statistical Studies of Solar White-light Flares and Comparisons with Superflares on Solar-type Stars (Peer-reviewed)
Kosuke Namekata, Takahito Sakaue, Kyoko Watanabe, Ayumi Asai, Hiroyuki Maehara, Yuta Notsu, Shota Notsu, Satoshi Honda, Takako T. Ishii, Kai Ikuta, Daisaku Nogami, Kazunari Shibata
The Astrophysical Journal Vol.851,No.2,pp.91 2017.12
doi Link Link
38. Unexpected superoutburst and rebrightening of AL Comae Berenices in 2015 (Peer-reviewed)
Kimura, Mariko, Kato, Taichi, Imada, Akira, Ikuta, Kai, Isogai, Keisuke, Dubovsky, Pavol A., Kiyota, Seiichiro, Pickard, Roger D., Miller, Ian, Pavlenko, Elena P., Sosnovskij, Aleksei A., Dvorak, Shawn, Nogami, Daisaku
Publications of the Astronomical Society of Japan Vol.68,No.1,pp.L2 2016.2
doi Link

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Presentations

No. Name of subject/Conference Name Year Site
1. スパースモデリングによる太陽型星表面の動的マッピング(日本天文学会年会講演予稿集)
Holding date : 2025
Presentation date : 2025
2. Starspot mapping and multi-wavelength variability for a young solar-type star(日本天文学会年会講演予稿集)
Holding date : 2024
Presentation date : 2024
3. 太陽型星スーパーフレアに伴うプロミネンス噴出モデル(日本天文学会年会講演予稿集)
Holding date : 2024
Presentation date : 2024
4. デルタ型黒点および太陽フレアの多波長2次元分光観測(日本天文学会年会講演予稿集)
Holding date : 2025
Presentation date : 2025
5. Hα線ポストフレアループの出現時間に関する統計的研究(日本天文学会年会講演予稿集)
Holding date : 2025
Presentation date : 2025
6. M型矮星YZ CMiのフレアの測光・分光同時観測 II:プロミネンス噴出の統計性調査(日本天文学会年会講演予稿集)
Holding date : 2025
Presentation date : 2025
7. 太陽近傍M型星Gliese12を公転する大気分光に適した地球サイズ惑星の発見(日本天文学会年会講演予稿集)
Holding date : 2024
Presentation date : 2024
8. ポストフレアループに注目した2023/8/5 X1.6フレアのSun-as-a-star解析(日本天文学会年会講演予稿集)
Holding date : 2024
Presentation date : 2024
9. 測光分光同時観測で迫るM型星フレア可視連続光の短時間での時間発展(日本天文学会年会講演予稿集)
Holding date : 2024
Presentation date : 2024
10. M型星フレアの彩層線輝線輪郭の青方偏移現象 III:M型星のコロナ質量放出(日本天文学会年会講演予稿集)
Holding date : 2023
Presentation date : 2023
11. データ科学による恒星表面マッピング(日本天文学会年会講演予稿集)
Holding date : 2023
Presentation date : 2023
12. スパースモデリングによる恒星表面マッピング(日本天文学会年会講演予稿集)
Holding date : 2023
Presentation date : 2023
13. 多色測光観測による若いM型星K2-25の磁気活動とその惑星トランジット観測への影響調査(日本天文学会年会講演予稿集)
Holding date : 2023
Presentation date : 2023
14. MuSCATシリーズとすばる望遠鏡IRDインテンシブ観測によるTESSトランジット惑星候補のフォローアップ観測 III(日本天文学会年会講演予稿集)
Holding date : 2023
Presentation date : 2023
15. Characterization of transiting sub-Neptune and outer giant planet candidate around mid-M dwarf TOI-654(日本地球惑星科学連合大会予稿集(Web))
Holding date : 2023
Presentation date : 2023
16. M型星フレア中における,彩層線輝線輪郭の青方偏移現象の分光・測光観測(日本天文学会年会講演予稿集)
Holding date : 2022
Presentation date : 2022
17. 太陽型星スーパーフレアに伴うフィラメント噴出モデル(日本天文学会年会講演予稿集)
Holding date : 2022
Presentation date : 2022
18. すばる望遠鏡IRDによるTOI-654の視線速度の複数惑星モデリング(日本天文学会年会講演予稿集)
Holding date : 2022
Presentation date : 2022
19. 白色光/Hα線同時観測による恒星スーパーフレア中の短周期QPPの検出(日本天文学会年会講演予稿集)
Holding date : 2022
Presentation date : 2022
20. M型星フレアの彩層線輝線輪郭の青方偏移現象II:NICERでのX線同時観測(日本天文学会年会講演予稿集)
Holding date : 2022
Presentation date : 2022
21. K型主系列星V833 Tauのスーパーフレアの高時間分解能分光観測(日本天文学会年会講演予稿集)
Holding date : 2022
Presentation date : 2022
22. せいめい望遠鏡によるK型星BF Lynのスーパーフレアの高時間分解能分光観測(日本天文学会年会講演予稿集)
Holding date : 2022
Presentation date : 2022
23. 可視光測光・分光同時観測で迫る恒星スーパーフレアの彩層放射メカニズム(日本天文学会年会講演予稿集)
Holding date : 2022
Presentation date : 2022
24. Starspot mapping with parallel tempering for M-dwarf flare stars
Link
Holding date : 2021.7.23
Presentation date : 2021.7.23
25. Starspot mapping with parallel tempering for TESS data of M-type flare stars. II. The variation of light curves in two years(日本天文学会年会講演予稿集)
Holding date : 2021
Presentation date : 2021
26. M型星フレアのHα線分光・可視光測光観測で迫る恒星の噴出現象(日本天文学会年会講演予稿集)
Holding date : 2021
Presentation date : 2021
27. K型主系列星LQ Hyaにおけるスーパーフレアの測光分光同時観測(日本天文学会年会講演予稿集)
Holding date : 2021
Presentation date : 2021
28. 多波長モニタ観測で探るM型星フレアのバルマー線の輝線輪郭非対称性III(日本天文学会年会講演予稿集)
Holding date : 2021
Presentation date : 2021
29. Kepler全データの解析による太陽型星スーパーフレアの統計的性質(日本天文学会年会講演予稿集)
Holding date : 2021
Presentation date : 2021
30. Starspot mapping with parallel tempering for TESS data of M-type flare stars(日本天文学会年会講演予稿集)
Holding date : 2021
Presentation date : 2021
31. Kepler全データを使った太陽類似星スーパーフレアの統計解析(日本天文学会年会講演予稿集)
Holding date : 2020
Presentation date : 2020
32. 太陽型星のスーパーフレアに伴うHα線放射・プラズマ噴出現象の世界初検出(日本天文学会年会講演予稿集)
Holding date : 2020
Presentation date : 2020
33. 多波長モニタ観測で探るM型星フレアのバルマー線の輝線輪郭非対称性 II(日本天文学会年会講演予稿集)
Holding date : 2020
Presentation date : 2020
34. 多波長モニタ観則で探るM型星フレアのバルマー線の輝線輪郭非対称性(日本天文学会年会講演予稿集)
Holding date : 2020
Presentation date : 2020
35. 光赤外線大学間連携とTESSによるフレア星YZ CMiの測光分光同時観測(日本天文学会年会講演予稿集)
Holding date : 2019
Presentation date : 2019
36. 惑星トランジットを用いた,空間分解された恒星黒点の面積の時間変化の推定(日本天文学会年会講演予稿集)
Holding date : 2019
Presentation date : 2019
37. 恒星フレアにおける元素合成の可能性(日本天文学会年会講演予稿集)
Holding date : 2019
Presentation date : 2019
38. G,K.M型星の恒星黒点の統計的性質とフレア活動性との関係(日本天文学会年会講演予稿集)
Holding date : 2019
Presentation date : 2019
39. TESSで観測される明るい太陽型スーパーフレア星候補の高分散分光観測(日本天文学会年会講演予稿集)
Holding date : 2018
Presentation date : 2018
40. 太陽黒点と太陽型星の巨大黒点群の時間発展の比較(日本天文学会年会講演予稿集)
Holding date : 2018
Presentation date : 2018
41. 巨大黒点を持つ近傍太陽型星のK2ミッション測光観測と同時高分散分光観測(日本天文学会年会講演予稿集)
Holding date : 2018
Presentation date : 2018
42. G,K,M型星におけるスーパーフレアのエネルギーと継続時間の関係(日本天文学会年会講演予稿集)
Holding date : 2018
Presentation date : 2018
43. 適応的交換モンテカルロ法で探るスーパーフレア星の巨大黒点の寿命と面積(日本天文学会年会講演予稿集)
Holding date : 2018
Presentation date : 2018
44. G,K,M型星におけるフレアと恒星黒点の関係(日本天文学会年会講演予稿集)
Holding date : 2017
Presentation date : 2017
45. Spectroscopic observations of solar-type superflare stars found from Kepler short (1-min) time cadence data(日本天文学会年会講演予稿集)
Holding date : 2017
Presentation date : 2017
46. 適応的交換モンテカルロ法を用いたスーパーフレア星の多次元パラメータ推定(日本天文学会年会講演予稿集)
Holding date : 2017
Presentation date : 2017
47. ベイズ推定で迫るスーパーフレア星の巨大黒点の寿命及び差動回転の検証(日本天文学会年会講演予稿集)
Holding date : 2017
Presentation date : 2017
48. 太陽型星の巨大黒点群の時間発展~太陽黒点との比較~(日本天文学会年会講演予稿集)
Holding date : 2017
Presentation date : 2017
49. 太陽型星の光度変動に対するマルコフ連鎖モンテカルロ法の適用(日本天文学会年会講演予稿集)
Holding date : 2016
Presentation date : 2016
50. Spectroscopy of A, F, G, and K type Superflare stars with MALLS(Bulletin of the Center for Astronomy, University of Hyogo (Web))
Holding date : 2016
Presentation date : 2016
51. 高い磁気活動を示す近傍の太陽型星のコロナ温度とEmission Measureの探査,及びスーパーフレア星との比較(日本天文学会年会講演予稿集)
Holding date : 2016
Presentation date : 2016
52. ガンマ線背景放射からIa型超新星へ(日本天文学会年会講演予稿集)
Holding date : 2015
Presentation date : 2015

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Research Projects

No. Research subject Research item(Awarding organization, System name) Year
1. Unified Understanding of Stellar Superflares from Onset to Consequences by Observation
Grant-in-Aid for Scientific Research (A)
( Awarding organization: Japan Society for the Promotion of Science System name: Grants-in-Aid for Scientific Research )
2024.4 - 2027.3
2. Exploring stellar magnetic activity from photometric and spectroscopic observations with astrostatistics
Grant-in-Aid for Early-Career Scientists
( Awarding organization: Japan Society for the Promotion of Science System name: Grants-in-Aid for Scientific Research )
2024.4 - 2027.3