Publications of Ayumi Asai

A list of publications authored or co-authored by Ayumi Asai, derived from the SAO/NASA Astrophysics Data System (ADS). The number in brackets after each title indicates the number of citations that the paper has received.

Orcid ID: 0000-0002-5279-686X

List of publications ordered by citations
Number of papers: 70 (refereed: 66)
No. of citations: 2713
First author papers: 20 (refereed: 20)

2026

  1. Statistical Study of the Timing of the Appearance of Hα Postflare Loops: Simple Scaling Law Based on Radiative Cooling [1]
    Otsu, Takato, Asai, Ayumi, Ikuta, Kai & Shibata, Kazunari, ApJ, 997, 286

2025

  1. Magnetic Field Configuration of a Quiescent Prominence Revealed by Large-amplitude Longitudinal Oscillations in End-view Observations [0]
    Dai, Jun, Asai, Ayumi, Song, Dechao, Qiu, Ye & Xu, Zhe, ApJ, 995, 104

2024

  1. Magnetic diffusion in solar atmosphere produces measurable electric fields [5]
    Anan, Tetsu, Casini, Roberto, Uitenbroek, Han, Schad, Thomas A., Socas-Navarro, Hector, Ichimoto, Kiyoshi, Jaeggli, Sarah A., Tiwari, Sanjiv K., Reep, Jeffrey W., Katsukawa, Yukio, Asai, Ayumi, Qiu, Jiong, Reardon, Kevin P., Tritschler, Alexandra, Wöger, Friedrich & Rimmele, Thomas R., Nature Communications, 15, 8811
  2. A fast-filament eruption observed in the Hα spectral line: I. Imaging spectroscopy diagnostic [2]
    Cabezas, Denis P., Ichimoto, Kiyoshi, Asai, Ayumi, UeNo, Satoru, Morita, Satoshi, Otsuji, Ken-ichi & Shibata, Kazunari, A&A, 690, A172
  3. Observation of Persistent Propagating Waves in a Solar Prominence [3]
    Ichimoto, Kiyoshi, Hashimoto, Yuki, Huang, Yuwei, Asai, Ayumi, Shirato, Haruhi, Yamazoe, Yuta, Kusuno, Kentaro, Ueno, Satoru & Yamasaki, Daiki, ApJ, 971, 102
  4. Simple model for filament and prominence eruptions from superflares on a young solar-type star [0]
    Ikuta, Kai, Otsu, Takato, Asai, Ayumi, Namekata, Kosuke & Shibata, Kazunari, Cool Stars 22, Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, p. 100
  5. Sun-as-a-star Analysis of the X1.6 Flare on 2023 August 5: Dynamics of Postflare Loops in Spatially Integrated Observational Data [14]
    Otsu, Takato, Asai, Ayumi, Ikuta, Kai & Shibata, Kazunari, ApJ, 974, L13
  6. Multiwavelength Sun-as-a-star Analysis of the M8.7 Flare on 2022 October 2 Using Hα and EUV Spectra Taken by SMART/SDDI and SDO/EVE [20]
    Otsu, Takato & Asai, Ayumi, ApJ, 964, 75
  7. Comparison of Solar Multifrequency Microwave Data with Other Solar Indices for Understanding Solar and Stellar Microwave Data [0]
    Shimojo, Masumi, Namekata, Kosuke, Iwai, Kazumasa, Asai, Ayumi & Watanabe, Kyoko, ApJ, 965, 170

2023

  1. Solar Energetic Particle Events with Short and Long Onset Times [1]
    Kihara, Kosuke, Asai, Ayumi, Yashiro, Seiji & Nitta, Nariaki V., ApJ, 946, 21
  2. Thermodynamic properties of small flares in the quiet Sun observed by Hα and EUV: plasma motion of the chromosphere and time evolution of temperature/emission measure [4]
    Kotani, Yuji, Ishii, T. T., Yamasaki, D., Otsuji, K., Ichimoto, K., Asai, A. & Shibata, K., MNRAS, 522, 4148
  3. Unified Relationship between Cold Plasma Ejections and Flare Energies Ranging from Solar Microflares to Giant Stellar Flares [11]
    Kotani, Yuji, Shibata, Kazunari, Ishii, Takako T., Yamasaki, Daiki, Otsuji, Kenichi, Ichimoto, Kiyoshi & Asai, Ayumi, ApJ, 943, 143
  4. Solar Activity in the Past and Its Impacts on Climate [0]
    Miyahara, Hiroko, Asai, Ayumi & Ueno, Satoru, Solar-Terrestrial Environmental Prediction (Editors: Kusano, Kanya), p.403

2022

  1. Sun-as-a-star Analyses of Various Solar Active Events Using Hα Spectral Images Taken by SMART/SDDI [40]
    Otsu, Takato, Asai, Ayumi, Ichimoto, Kiyoshi, Ishii, Takako T. & Namekata, Kosuke, ApJ, 939, 98

2021

  1. A three-dimensional velocity of an erupting prominence prior to a coronal mass ejection [3]
    Gutierrez, Maria V., Otsuji, Kenichi, Asai, Ayumi, Terrazas, Raul, Ishitsuka, Mutsumi, Ishitsuka, Jose, Nakamura, Naoki, Yoshinaga, Yusuke, Morita, Satoshi, Ishii, Takako T., Ueno, Satoru, Kitai, Reizaburo & Shibata, Kazunari, Publications of the Astronomical Society of Japan, 73, 394
  2. PSTEP: project for solar–terrestrial environment prediction [10]
    Kusano, Kanya, Ichimoto, Kiyoshi, Ishii, Mamoru, Miyoshi, Yoshizumi, Yoden, Shigeo, Akiyoshi, Hideharu, Asai, Ayumi, Ebihara, Yusuke, Fujiwara, Hitoshi, Goto, Tada-Nori, Hanaoka, Yoichiro, Hayakawa, Hisashi, Hosokawa, Keisuke, Hotta, Hideyuki, Hozumi, Kornyanat, Imada, Shinsuke, Iwai, Kazumasa, Iyemori, Toshihiko, Jin, Hidekatsu, Kataoka, Ryuho, Katoh, Yuto, Kikuchi, Takashi, Kubo, Yûki, Kurita, Satoshi, Matsumoto, Haruhisa, Mitani, Takefumi, Miyahara, Hiroko, Miyoshi, Yasunobu, Nagatsuma, Tsutomu, Nakamizo, Aoi, Nakamura, Satoko, Nakata, Hiroyuki, Nishizuka, Naoto, Otsuka, Yuichi, Saito, Shinji, Saito, Susumu, Sakurai, Takashi, Sato, Tatsuhiko, Shimizu, Toshifumi, Shinagawa, Hiroyuki, Shiokawa, Kazuo, Shiota, Daikou, Takashima, Takeshi, Tao, Chihiro, Toriumi, Shin, Ueno, Satoru, Watanabe, Kyoko, Watari, Shinichi, Yashiro, Seiji, Yoshida, Kohei & Yoshikawa, Akimasa, Earth, Planets and Space, 73, 159
  3. Relationship between three-dimensional velocity of filament eruptions and CME association [18]
    Seki, Daikichi, Otsuji, Kenichi, Ishii, Takako T., Asai, Ayumi & Ichimoto, Kiyoshi, Earth, Planets and Space, 73, 58

2020

  1. Statistical Analysis of the Relation between Coronal Mass Ejections and Solar Energetic Particles [17]
    Kihara, Kosuke, Huang, Yuwei, Nishimura, Nobuhiko, Nitta, Nariaki V., Yashiro, Seiji, Ichimoto, Kiyoshi & Asai, Ayumi, ApJ, 900, 75

2019

  1. Dynamic Processes of the Moreton Wave on 2014 March 29 [16]
    Cabezas, Denis P., Asai, Ayumi, Ichimoto, Kiyoshi, Sakaue, Takahito, UeNo, Satoru, Ishitsuka, José K. & Shibata, Kazunari, ApJ, 883, 32
  2. SMART/SDDI Filament Disappearance Catalogue [9]
    Seki, D., Otsuji, K., Ishii, T., Hirose, K., Iju, T., UeNo, S., Cabezas, D., Asai, A., Isobe, H., Ichimoto, K. & Shibata, K., Sun and Geosphere, 14, 95

2018

  1. Observational study on the fine structure and dynamics of a solar jet. II. Energy release process revealed by spectral analysis [12]
    Sakaue, Takahito, Tei, Akiko, Asai, Ayumi, Ueno, Satoru, Ichimoto, Kiyoshi & Shibata, Kazunari, Publications of the Astronomical Society of Japan, 70, 99
  2. Blue-wing enhancement of the chromospheric Mg II h and k lines in a solar flare [51]
    Tei, Akiko, Sakaue, Takahito, Okamoto, Takenori J., Kawate, Tomoko, Heinzel, Petr, UeNo, Satoru, Asai, Ayumi, Ichimoto, Kiyoshi & Shibata, Kazunari, Publications of the Astronomical Society of Japan, 70, 100

2017

  1. “Dandelion” Filament Eruption and Coronal Waves Associated with a Solar Flare on 2011 February 16 [9]
    Cabezas, Denis P., Martínez, Lurdes M., Buleje, Yovanny J., Ishitsuka, Mutsumi, Ishitsuka, José K., Morita, Satoshi, Asai, Ayumi, UeNo, Satoru, Ishii, Takako T., Kitai, Reizaburo, Takasao, Shinsuke, Yoshinaga, Yusuke, Otsuji, Kenichi & Shibata, Kazunari, ApJ, 836, 33
  2. Validation of a scaling law for the coronal magnetic field strength and loop length of solar and stellar flares [17]
    Namekata, Kosuke, Sakaue, Takahito, Watanabe, Kyoko, Asai, Ayumi & Shibata, Kazunari, Publications of the Astronomical Society of Japan, 69, 7
  3. Statistical Studies of Solar White-light Flares and Comparisons with Superflares on Solar-type Stars [154]
    Namekata, Kosuke, Sakaue, Takahito, Watanabe, Kyoko, Asai, Ayumi, Maehara, Hiroyuki, Notsu, Yuta, Notsu, Shota, Honda, Satoshi, Ishii, Takako T., Ikuta, Kai, Nogami, Daisaku & Shibata, Kazunari, ApJ, 851, 91
  4. Observational study on the fine structure and dynamics of a solar jet. I. Energy build-up process around a satellite spot [8]
    Sakaue, Takahito, Tei, Akiko, Asai, Ayumi, Ueno, Satoru, Ichimoto, Kiyoshi & Shibata, Kazunari, Publications of the Astronomical Society of Japan, 69, 80
  5. Variation of the Solar Microwave Spectrum in the Last Half Century [15]
    Shimojo, Masumi, Iwai, Kazumasa, Asai, Ayumi, Nozawa, Satoshi, Minamidani, Tetsuhiro & Saito, Masao, ApJ, 848, 62
  6. Sheath-accumulating Propagation of Interplanetary Coronal Mass Ejection [29]
    Takahashi, Takuya & Shibata, Kazunari, ApJ, 837, L17
  7. Shock-Cloud Interaction in the Solar Corona [2]
    Takahashi, Takuya, ApJ, 836, 178
  8. Quasi-periodic Oscillations in Flares and Coronal Mass Ejections Associated with Magnetic Reconnection [53]
    Takahashi, Takuya, Qiu, Jiong & Shibata, Kazunari, ApJ, 848, 102

2016

  1. A Deep-Learning Approach for Operation of an Automated Realtime Flare Forecast [13]
    Hada-Muranushi, Yuko, Muranushi, Takayuki, Asai, Ayumi, Okanohara, Daisuke, Raymond, Rudy, Watanabe, Gentaro, Nemoto, Shigeru & Shibata, Kazunari, arXiv:1606.01587
  2. Temporal Evolution and Spatial Distribution of White-light Flare Kernels in a Solar Flare [14]
    Kawate, T., Ishii, T. T., Nakatani, Y., Ichimoto, K., Asai, A., Morita, S. & Masuda, S., ApJ, 833, 50
  3. Division E Commission 10: Solar Activity [1]
    Schrijver, Carolus J., Fletcher, Lyndsay, van Driel-Gesztelyi, Lidia, Asai, Ayumi, Cally, Paul S., Charbonneau, Paul, Gibson, Sarah E., Gomez, Daniel, Hasan, Siraj S., Veronig, Astrid M. & Yan, Yihua, Transactions of the International Astronomical Union, Series A, 29A, 245
  4. Scaling Relations in Coronal Mass Ejections and Energetic Proton Events Associated with Solar Superflares [51]
    Takahashi, Takuya, Mizuno, Yoshiyuki & Shibata, Kazunari, ApJ, 833, L8
  5. Observational Evidence of Particle Acceleration Associated with Plasmoid Motions [35]
    Takasao, Shinsuke, Asai, Ayumi, Isobe, Hiroaki & Shibata, Kazunari, ApJ, 828, 103

2015

  1. Internal structure of a coronal mass ejection revealed by Akatsuki radio occultation observations [14]
    Ando, H., Shiota, D., Imamura, T., Tokumaru, M., Asai, A., Isobe, H., Päzold, M., Häusler, B. & Nakamura, M., Journal of Geophysical Research (Space Physics), 120, 5318
  2. Prominence Activation By Coronal Fast Mode Shock [20]
    Takahashi, Takuya, Asai, Ayumi & Shibata, Kazunari, ApJ, 801, 37

2014

  1. Outflow Structure of the Quiet Sun Corona Probed by Spacecraft Radio Scintillations in Strong Scattering [40]
    Imamura, Takeshi, Tokumaru, Munetoshi, Isobe, Hiroaki, Shiota, Daikou, Ando, Hiroki, Miyamoto, Mayu, Toda, Tomoaki, Häusler, Bernd, Pätzold, Martin, Nabatov, Alexander, Asai, Ayumi, Yaji, Kentaro, Yamada, Manabu & Nakamura, Masato, ApJ, 788, 117
  2. Radial Distribution of Compressive Waves in the Solar Corona Revealed by Akatsuki Radio Occultation Observations [44]
    Miyamoto, Mayu, Imamura, Takeshi, Tokumaru, Munetoshi, Ando, Hiroki, Isobe, Hiroaki, Asai, Ayumi, Shiota, Daikou, Toda, Tomoaki, Häusler, Bernd, Pätzold, Martin, Nabatov, Alexander & Nakamura, Masato, ApJ, 797, 51

2013

  1. Temporal and Spatial Analyses of Spectral Indices of Nonthermal Emissions Derived from Hard X-Rays and Microwaves [30]
    Asai, Ayumi, Kiyohara, Junko, Takasaki, Hiroyuki, Narukage, Noriyuki, Yokoyama, Takaaki, Masuda, Satoshi, Shimojo, Masumi & Nakajima, Hiroshi, ApJ, 763, 87

2012

  1. A Study on Red Asymmetry of Hα Flare Ribbons Using a Narrowband Filtergram in the 2001 April 10 Solar Flare [16]
    Asai, Ayumi, Ichimoto, Kiyoshi, Kita, Reizaburo, Kurokawa, Hiroki & Shibata, Kazunari, Publications of the Astronomical Society of Japan, 64, 20
  2. First Simultaneous Observation of an Hα Moreton Wave, EUV Wave, and Filament/Prominence Oscillations [127]
    Asai, Ayumi, Ishii, Takako T., Isobe, Hiroaki, Kitai, Reizaburo, Ichimoto, Kiyoshi, UeNo, Satoru, Nagata, Shin'ichi, Morita, Satoshi, Nishida, Keisuke, Shiota, Daikou, Oi, Akihito, Akioka, Maki & Shibata, Kazunari, ApJ, 745, L18
  3. Magnetic Field Structures Triggering Solar Flares and Coronal Mass Ejections [181]
    Kusano, K., Bamba, Y., Yamamoto, T. T., Iida, Y., Toriumi, S. & Asai, A., ApJ, 760, 31
  4. Simultaneous Observation of Reconnection Inflow and Outflow Associated with the 2010 August 18 Solar Flare [177]
    Takasao, Shinsuke, Asai, Ayumi, Isobe, Hiroaki & Shibata, Kazunari, ApJ, 745, L6

2011

  1. The 22 May 2007 B-class flare: new insights from Hinode observations [54]
    Del Zanna, G., Mitra-Kraev, U., Bradshaw, S. J., Mason, H. E. & Asai, A., A&A, 526, A1
  2. Center-to-Limb Variation of Radio Emissions from Thermal-Rich and Thermal-Poor Solar Flares [6]
    Kawate, Tomoko, Asai, Ayumi & Ichimoto, Kiyoshi, Publications of the Astronomical Society of Japan, 63, 1251
  3. Numerical Investigation of a Coronal Mass Ejection from an Anemone Active Region: Reconnection and Deflection of the 2005 August 22 Eruption [114]
    Lugaz, N., Downs, C., Shibata, K., Roussev, I. I., Asai, A. & Gombosi, T. I., ApJ, 738, 127

2010

  1. Multiple Plasmoid Ejections and Associated Hard X-ray Bursts in the 2000 November 24 Flare [56]
    Nishizuka, N., Takasaki, H., Asai, A. & Shibata, K., ApJ, 711, 1062

2009

  1. Imaging Spectroscopy on Preflare Coronal Nonthermal Sources Associated with the 2002 July 23 Flare [13]
    Asai, Ayumi, Nakajima, Hiroshi, Shimojo, Masumi, Yokoyama, Takaaki, Masuda, Satoshi & Krucker, Säm, ApJ, 695, 1623
  2. The Power-Law Distribution of Flare Kernels and Fractal Current Sheets in a Solar Flare [45]
    Nishizuka, N., Asai, A., Takasaki, H., Kurokawa, H. & Shibata, K., ApJ, 694, L74

2008

  1. Strongly Blueshifted Phenomena Observed with Hinode EIS in the 2006 December 13 Solar Flare [40]
    Asai, Ayumi, Hara, Hirohisa, Watanabe, Tetsuya, Imada, Shinsuke, Sakao, Taro, Narukage, Noriyuki, Culhane, J. L. & Doschek, G. A., ApJ, 685, 622
  2. Characteristics of Anemone Active Regions Appearing in Coronal Holes Observed with the Yohkoh Soft X-Ray Telescope [29]
    Asai, Ayumi, Shibata, Kazunari, Hara, Hirohisa & Nitta, Nariaki V., ApJ, 673, 1188
  3. Non-Gaussian Line Profiles in a Large Solar Flare Observed on 2006 December 13 [34]
    Imada, S., Hara, H., Watanabe, T., Asai, A., Minoshima, T., Harra, L. K. & Mariska, J. T., ApJ, 679, L155

2007

  1. Loop top nonthermal emission sources associated with an over-the-limb flare observed with NoRH and RHESSI [5]
    Asai, Ayumi, Nakajima, Hiroshi, Oka, Mitsuo, Nishida, Keisuke & Tanaka, Yasuyuki T., Advances in Space Research, 39, 1398
  2. Discovery of a Temperature-Dependent Upflow in the Plage Region During a Gradual Phase of the X-Class Flare [70]
    Imada, Shinsuke, Hara, Hirohisa, Watanabe, Tetsuya, Kamio, Suguru, Asai, Ayumi, Matsuzaki, Keiichi, Harra, Louise K. & Mariska, John T., Publications of the Astronomical Society of Japan, 59, S793
  3. Large-Amplitude Oscillation of an Erupting Filament as Seen in EUV, Hα, and Microwave Observations [48]
    Isobe, H., Tripathi, D., Asai, A. & Jain, R., Solar Physics, 246, 89
  4. Imaging Spectroscopy of a Gradual Hardening Flare on 2000 November 25 [4]
    Takasaki, Hiroyuki, Kiyohara, Junko, Asai, Ayumi, Nakajima, Hiroshi, Yokoyama, Takaaki, Masuda, Satoshi, Sato, Jun & Kosugi, Takeo, ApJ, 661, 1234

2006

  1. Preflare Nonthermal Emission Observed in Microwaves and Hard X-Rays [34]
    Asai, Ayumi, Nakajima, Hiroshi, Shimojo, Masumi, White, Stephen M., Hudson, Hugh S. & Lin, Robert P., Publications of the Astronomical Society of Japan, 58, L1
  2. Flare Ribbon Expansion and Energy Release [5]
    Asai, Ayumi, Yokoyama, Takaaki, Shimojo, Masumi, Masuda, Satoshi & Shibata, Kazunari, Journal of Astrophysics and Astronomy, 27, 167
  3. The early phases of a solar prominence eruption and associated flare: a multi-wavelength analysis [81]
    Chifor, C., Mason, H. E., Tripathi, D., Isobe, H. & Asai, A., A&A, 458, 965
  4. One Solar-Cycle Observations of Prominence Activities Using the Nobeyama Radioheliograph 1992-2004 [31]
    Shimojo, Masumi, Yokoyama, Takaaki, Asai, Ayumi, Nakajima, Hiroshi & Shibasaki, Kiyoto, Publications of the Astronomical Society of Japan, 58, 85

2004

  1. Flare Ribbon Expansion and Energy Release Rate [102]
    Asai, Ayumi, Yokoyama, Takaaki, Shimojo, Masumi, Masuda, Satoshi, Kurokawa, Hiroki & Shibata, Kazunari, ApJ, 611, 557
  2. Downflow Motions Associated with Impulsive Nonthermal Emissions Observed in the 2002 July 23 Solar Flare [164]
    Asai, Ayumi, Yokoyama, Takaaki, Shimojo, Masumi & Shibata, Kazunari, ApJ, 605, L77
  3. A Quantitative Study of the Homologous Flares on 2000 November 24 [24]
    Takasaki, Hiroyuki, Asai, Ayumi, Kiyohara, Junko, Shimojo, Masumi, Terasawa, Toshio, Takei, Yasuhiro & Shibata, Kazunari, ApJ, 613, 592

2003

  1. Evolution of flare ribbons and energy release [1]
    Asai, A., Masuda, S., Yokoyama, T., Shimojo, M., Kurokawa, H., Ishii, T. T. & Shibatal, K., Advances in Space Research, 32, 2561
  2. Evolution of Conjugate Footpoints inside Flare Ribbons during a Great Two-Ribbon Flare on 2001 April 10 [50]
    Asai, Ayumi, Ishii, Takako T., Kurokawa, Hiroki, Yokoyama, Takaaki & Shimojo, Masumi, ApJ, 586, 624

2002

  1. Difference between Spatial Distributions of the Hα Kernels and Hard X-Ray Sources in a Solar Flare [67]
    Asai, Ayumi, Masuda, Satoshi, Yokoyama, Takaaki, Shimojo, Masumi, Isobe, Hiroaki, Kurokawa, Hiroki & Shibata, Kazunari, ApJ, 578, L91
  2. Relation between a Moreton Wave and an EIT Wave Observed on 1997 November 4 [134]
    Eto, Shigeru, Isobe, Hiroaki, Narukage, Noriyuki, Asai, Ayumi, Morimoto, Taro, Thompson, Barbara, Yashiro, Seiji, Wang, Tongjiang, Kitai, Reizaburo, Kurokawa, Hiroki & Shibata, Kazunari, Publications of the Astronomical Society of Japan, 54, 481

2001

  1. Periodic Acceleration of Electrons in the 1998 November 10 Solar Flare [108]
    Asai, A., Shimojo, M., Isobe, H., Morimoto, T., Yokoyama, T., Shibasaki, K. & Nakajima, H., ApJ, 562, L103
  2. Plasma Ejections from a Light Bridge in a Sunspot Umbra [107]
    Asai, Ayumi, Ishii, Takako T. & Kurokawa, Hiroki, ApJ, 555, L65

Created on Wed Apr 8 04:40:45 2026.