Publications of Keiji Hayashi

A list of publications authored or co-authored by Keiji Hayashi, 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: 0000-0001-9046-6688

List of publications ordered by citations
Number of papers: 58 (refereed: 58)
No. of citations: 3308
First author papers: 18 (refereed: 18)

2026

  1. Simulations of Global Solar Convection with a Fully Compressible CHORUS++ Code [0]
    Hayashi, Keiji, Kosovichev, Alexander G. & Liang, Chunlei, ApJS, 282, 58
  2. Large Magnetic Flux Rope Formation in an X2.1 Flare Observed on 2011 September 6 [0]
    Roddanavar, Arpita, Inoue, Satoshi, Hayashi, Keiji, Jing, Ju, Cao, Wenda & Wang, Haimin, ApJ, 997, 51

2025

  1. A Magnetohydrodynamics Simulation of Coronal Mass Ejections in the Upper Corona at 2.5R⊙ ≤ r ≤ 19R⊙ [0]
    Hayashi, Keiji, Wu, Chin-Chun & Liou, Kan, ApJ, 979, 76
  2. Acceleration of Solar Eruptions via Enhanced Torus Instability Driven by Small-scale Flux Emergence [1]
    Inoue, Satoshi, Miyoshi, Takahiro, Hayashi, Keiji, Minh Triet Nguyen, Huu, Jing, Ju, Cao, Wenda & Wang, Haimin, ApJ, 988, L36
  3. A Data-constrained Magnetohydrodynamic Simulation of Successive X-class Flares in Solar Active Region 13842. II. Dynamics of the Solar Eruption Associated with the X9.0 Solar Flare [1]
    Matsumoto, Keitarou, Inoue, Satoshi, Hayashi, Keiji, Liu, Nian, Wang, Ying, Lee, Jeongwoo, Jing, Ju & Wang, Haimin, ApJ, 991, 77
  4. A Data-constrained Magnetohydrodynamic Simulation of Successive X-class Flares in Solar Active Region 13842. I. Dynamics of the Solar Eruption Associated with the X7.1 Solar Flare [3]
    Matsumoto, Keitarou, Inoue, Satoshi, Liu, Nian, Hayashi, Keiji, Jing, Ju & Wang, Haimin, ApJ, 985, 20

2024

  1. Are Electric-field-driven Magnetohydrodynamic Simulations of the Solar Corona Sensitive to the Initial Condition? [2]
    Barnes, Graham, Hayashi, Keiji & Gilchrist, S. A., ApJ, 960, 102

2023

  1. Boundary Treatment for the Subsonic/Alfvénic Inner Boundary at 2.5 R ⊙ in a Time-dependent 3D Magnetohydrodynamics Solar Wind Simulation Model [2]
    Hayashi, Keiji, Wu, Chin-Chun & Liou, Kan, ApJS, 268, 39
  2. An Evolution and Eruption of the Coronal Magnetic Field through a Data-driven MHD Simulation [13]
    Inoue, Satoshi, Hayashi, Keiji & Miyoshi, Takahiro, ApJ, 946, 46
  3. A Comparative Study of Solar Active Region 12371 with Data-constrained and Data-driven Magnetohydrodynamic Simulations [12]
    Inoue, Satoshi, Hayashi, Keiji, Miyoshi, Takahiro, Jing, Ju & Wang, Haimin, ApJ, 944, L44

2022

  1. The Nonpotentiality of Steady-state Coronal Magnetic Field Derived with Time-relaxation Magnetohydrodynamics Simulations Using Helioseismic and Magnetic Imager Three-component Magnetic Field Data [6]
    Hayashi, Keiji, Wu, Chin-Chun & Liou, Kan, ApJ, 940, 82
  2. An Electric-field-driven Global Coronal Magnetohydrodynamics Simulation Model Using Helioseismic and Magnetic Imager Vector-magnetic-field Synoptic Map Data [12]
    Hayashi, Keiji, Wu, Chin-Chun & Liou, Kan, ApJ, 930, 60

2021

  1. Coupling a Global Heliospheric Magnetohydrodynamic Model to a Magnetofrictional Model of the Low Corona [18]
    Hayashi, Keiji, Abbett, William P., Cheung, Mark C. M. & Fisher, George H., ApJS, 254, 1

2020

  1. The Coronal Global Evolutionary Model: Using HMI Vector Magnetogram and Doppler Data to Determine Coronal Magnetic Field Evolution [50]
    Hoeksema, J. Todd, Abbett, William P., Bercik, David J., Cheung, Mark C. M., DeRosa, Marc L., Fisher, George H., Hayashi, Keiji, Kazachenko, Maria D., Liu, Yang, Lumme, Erkka, Lynch, Benjamin J., Sun, Xudong & Welsch, Brian T., ApJS, 250, 28
  2. Comparative Study of Data-driven Solar Coronal Field Models Using a Flux Emergence Simulation as a Ground-truth Data Set [34]
    Toriumi, Shin, Takasao, Shinsuke, Cheung, Mark C. M., Jiang, Chaowei, Guo, Yang, Hayashi, Keiji & Inoue, Satoshi, ApJ, 890, 103

2019

  1. The Role of a Tiny Brightening in a Huge Geoeffective Solar Eruption Leading to the St. Patrick’s Day Storm [4]
    Bamba, Yumi, Inoue, Satoshi & Hayashi, Keiji, ApJ, 874, 73
  2. Magnetohydrodynamic Simulations for Solar Active Regions using Time-series Data of Surface Plasma Flow and Electric Field Inferred from Helioseismic Magnetic Imager Vector Magnetic Field Measurements [29]
    Hayashi, Keiji, Feng, Xueshang, Xiong, Ming & Jiang, Chaowei, ApJ, 871, L28

2018

  1. An MHD Simulation of Solar Active Region 11158 Driven with a Time-dependent Electric Field Determined from HMI Vector Magnetic Field Measurement Data [56]
    Hayashi, Keiji, Feng, Xueshang, Xiong, Ming & Jiang, Chaowei, ApJ, 855, 11
  2. Prospective White-light Imaging and In Situ Measurements of Quiescent Large-scale Solar-wind Streams from the Parker Solar Probe and Solar Orbiter [7]
    Xiong, Ming, Davies, Jackie A., Feng, Xueshang, Li, Bo, Yang, Liping, Xia, Lidong, Harrison, Richard A., Hayashi, Keiji, Li, Huichao & Zhou, Yufen, ApJ, 868, 137
  3. Prospective Out-of-ecliptic White-light Imaging of Coronal Mass Ejections Traveling through the Corona and Heliosphere [6]
    Xiong, Ming, Davies, Jackie A., Harrison, Richard A., Zhou, Yufen, Feng, Xueshang, Xia, Lidong, Li, Bo, Liu, Ying D., Hayashi, Keiji, Li, Huichao & Yang, Liping, ApJ, 852, 111

2017

  1. Vector Magnetic Field Synoptic Charts from the Helioseismic and Magnetic Imager (HMI) [32]
    Liu, Yang, Hoeksema, J. Todd, Sun, Xudong & Hayashi, Keiji, Solar Physics, 292, 29
  2. Prospective Out-of-ecliptic White-light Imaging of Interplanetary Corotating Interaction Regions at Solar Maximum [8]
    Xiong, Ming, Davies, Jackie A., Li, Bo, Yang, Liping, Liu, Ying D., Xia, Lidong, Harrison, Richard A., Keiji, Hayashi & Li, Huichao, ApJ, 844, 76

2016

  1. Long-term Trend of Solar Coronal Hole Distribution from 1975 to 2014 [27]
    Fujiki, K., Tokumaru, M., Hayashi, K., Satonaka, D. & Hakamada, K., ApJ, 827, L41
  2. MHD-IPS analysis of relationship among solar wind density, temperature, and flow speed [8]
    Hayashi, Keiji, Tokumaru, Munetoshi & Fujiki, Ken'ichi, Journal of Geophysical Research (Space Physics), 121, 7367
  3. Comparison of potential field solutions for Carrington Rotation 2144 [15]
    Hayashi, Keiji, Yang, Shangbin & Deng, Yuagyong, Journal of Geophysical Research (Space Physics), 121, 1046
  4. Structure and Stability of Magnetic Fields in Solar Active Region 12192 Based on the Nonlinear Force-free Field Modeling [37]
    Inoue, S., Hayashi, K. & Kusano, K., ApJ, 818, 168
  5. Exploration of solar photospheric magnetic field data sets using the UCSD tomography [9]
    Jackson, B. V., Yu, H.-S., Buffington, A., Hick, P. P., Nishimura, N., Nozaki, N., Tokumaru, M., Fujiki, K. & Hayashi, K., Space Weather, 14, 1107

2015

  1. The Coronal Global Evolutionary Model: Using HMI Vector Magnetogram and Doppler Data to Model the Buildup of Free Magnetic Energy in the Solar Corona [59]
    Fisher, G. H., Abbett, W. P., Bercik, D. J., Kazachenko, M. D., Lynch, B. J., Welsch, B. T., Hoeksema, J. T., Hayashi, K., Liu, Y., Norton, A. A., Dalda, A. Sainz, Sun, X., DeRosa, M. L. & Cheung, M. C. M., Space Weather, 13, 369
  2. The Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: Magnetohydrodynamics Simulation Module for the Global Solar Corona [17]
    Hayashi, K., Hoeksema, J. T., Liu, Y., Bobra, M. G., Sun, X. D. & Norton, A. A., Solar Physics, 290, 1507
  3. Magnetohydrodynamic Simulation of the X2.2 Solar Flare on 2011 February 15. II. Dynamics Connecting the Solar Flare and the Coronal Mass Ejection [66]
    Inoue, S., Hayashi, K., Magara, T., Choe, G. S. & Park, Y. D., ApJ, 803, 73

2014

  1. The Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: SHARPs - Space-Weather HMI Active Region Patches [657]
    Bobra, M. G., Sun, X., Hoeksema, J. T., Turmon, M., Liu, Y., Hayashi, K., Barnes, G. & Leka, K. D., Solar Physics, 289, 3549
  2. The Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: Optimization of the Spectral Line Inversion Code [95]
    Centeno, R., Schou, J., Hayashi, K., Norton, A., Hoeksema, J. T., Liu, Y., Leka, K. D. & Barnes, G., Solar Physics, 289, 3531
  3. MHD analysis of the velocity oscillations in the outer heliosphere [4]
    Fujiki, Ken'ichi, Washimi, Haruichi, Hayashi, Keiji, Zank, Gary P., Tokumaru, Munetoshi, Tanaka, Takashi, Florinski, Vladimir & Kubo, Yuki, Geophysical Research Letters, 41, 1420
  4. The Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: Overview and Performance [550]
    Hoeksema, J. Todd, Liu, Yang, Hayashi, Keiji, Sun, Xudong, Schou, Jesper, Couvidat, Sebastien, Norton, Aimee, Bobra, Monica, Centeno, Rebecca, Leka, K. D., Barnes, Graham & Turmon, Michael, Solar Physics, 289, 3483
  5. Magnetohydrodynamic Simulation of the X2.2 Solar Flare on 2011 February 15. I. Comparison with the Observations [88]
    Inoue, S., Hayashi, K., Magara, T., Choe, G. S. & Park, Y. D., ApJ, 788, 182
  6. Magnetic Helicity in Emerging Solar Active Regions [60]
    Liu, Y., Hoeksema, J. T., Bobra, M., Hayashi, K., Schuck, P. W. & Sun, X., ApJ, 785, 13
  7. Statistical Analysis of the Horizontal Divergent Flow in Emerging Solar Active Regions [28]
    Toriumi, Shin, Hayashi, Keiji & Yokoyama, Takaaki, ApJ, 794, 19

2013

  1. An MHD simulation model of time-dependent global solar corona with temporally varying solar-surface magnetic field maps [27]
    Hayashi, K., Journal of Geophysical Research (Space Physics), 118, 6889
  2. Magnetic Structure Producing X- and M-class Solar Flares in Solar Active Region 11158 [46]
    Inoue, S., Hayashi, K., Shiota, D., Magara, T. & Choe, G. S., ApJ, 770, 79
  3. Properties of High-Frequency Wave Power Halos Around Active Regions: An Analysis of Multi-height Data from HMI and AIA Onboard SDO [35]
    Rajaguru, S. P., Couvidat, S., Sun, Xudong, Hayashi, K. & Schunker, H., Solar Physics, 287, 107

2012

  1. An MHD simulation model of time-dependent co-rotating solar wind [35]
    Hayashi, K., Journal of Geophysical Research (Space Physics), 117, A08105
  2. Comparison of Line-of-Sight Magnetograms Taken by the Solar Dynamics Observatory/Helioseismic and Magnetic Imager and Solar and Heliospheric Observatory/Michelson Doppler Imager [259]
    Liu, Y., Hoeksema, J. T., Scherrer, P. H., Schou, J., Couvidat, S., Bush, R. I., Duvall, T. L., Hayashi, K., Sun, X. & Zhao, X., Solar Physics, 279, 295
  3. A Non-radial Eruption in a Quadrupolar Magnetic Configuration with a Coronal Null [69]
    Sun, Xudong, Hoeksema, J. Todd, Liu, Yang, Chen, Qingrong & Hayashi, Keiji, ApJ, 757, 149
  4. Evolution of Magnetic Field and Energy in a Major Eruptive Active Region Based on SDO/HMI Observation [338]
    Sun, Xudong, Hoeksema, J. Todd, Liu, Yang, Wiegelmann, Thomas, Hayashi, Keiji, Chen, Qingrong & Thalmann, Julia, ApJ, 748, 77
  5. Detection of the Horizontal Divergent Flow Prior to the Solar Flux Emergence [24]
    Toriumi, S., Hayashi, K. & Yokoyama, T., ApJ, 751, 154

2011

  1. A New Method for Polar Field Interpolation [95]
    Sun, X., Liu, Y., Hoeksema, J. T., Hayashi, K. & Zhao, X., Solar Physics, 270, 9

2009

  1. Non-dipolar solar wind structure observed in the cycle 23/24 minimum [50]
    Tokumaru, M., Kojima, M., Fujiki, K. & Hayashi, K., Geophysical Research Letters, 36, L09101

2008

  1. MHD simulations of the global solar corona around the Halloween event in 2003 using the synchronic frame format of the solar photospheric magnetic field [17]
    Hayashi, Keiji, Zhao, Xue Pu & Liu, Yang, Journal of Geophysical Research (Space Physics), 113, A07104
  2. Validation of Two MHD Models of the Solar Corona with Rotational Tomography [21]
    Vásquez, Alberto M., Frazin, Richard A., Hayashi, Keiji, Sokolov, Igor V., Cohen, Ofer, Manchester, Ward B., IV & Kamalabadi, Farzad, ApJ, 682, 1328

2007

  1. IPS tomographic observations of 3D solar wind structure [26]
    Kojima, M., Tokumaru, M., Fujiki, K., Hayashi, K. & Jackson, B. V., Astronomical and Astrophysical Transactions, 26, 467

2006

  1. MHD simulation of two successive interplanetary disturbances driven by cone-model parameters in IPS-based solar wind [23]
    Hayashi, Keiji, Zhao, Xue Pu & Liu, Yang, Geophysical Research Letters, 33, L20103
  2. Three-Dimensional Magnetohydrodynamic Simulation of a Global Solar Corona Using a Temperature Distribution Map Obtained from SOHO EIT Measurements [17]
    Hayashi, Keiji, Benevolenskaya, Elena, Hoeksema, Todd, Liu, Yang & Zhao, Xue Pu, ApJ, 636, L165
  3. The 2003 October-November Fast Halo Coronal Mass Ejections and the Large-Scale Magnetic Field Structures [30]
    Liu, Y. & Hayashi, K., ApJ, 640, 1135

2005

  1. Magnetohydrodynamic Simulations of the Solar Corona and Solar Wind Using a Boundary Treatment to Limit Solar Wind Mass Flux [88]
    Hayashi, Keiji, ApJS, 161, 480

2004

  1. Fast solar wind after the rapid acceleration [18]
    Kojima, M., Breen, A. R., Fujiki, K., Hayashi, K., Ohmi, T. & Tokumaru, M., Journal of Geophysical Research (Space Physics), 109, A04103

2003

  1. How did the solar wind structure change around the solar maximum? From interplanetary scintillation observation [21]
    Fujiki, K., Kojima, M., Tokumaru, M., Ohmi, T., Yokobe, A., Hayashi, K., McComas, D. J. & Elliott, H. A., Annales Geophysicae, 21, 1257
  2. MHD tomography using interplanetary scintillation measurement [45]
    Hayashi, Keiji, Kojima, Masayoshi, Tokumaru, Munetoshi & Fujiki, Ken'ichi, Journal of Geophysical Research (Space Physics), 108, 1102
  3. Polar low-speed solar wind reappeared at the solar activity maximum of cycle 23 [8]
    Ohmi, T., Kojima, M., Fujiki, K., Tokumaru, M., Hayashi, K. & Hakamada, K., Geophysical Research Letters, 30, 1409

Created on Wed Apr 22 04:24:29 2026.