Publications (April 2020 – March 2021)

Bhaskar, A., H. Hayakawa, D. M. Oliveira, S. Blake, S. M. Silverman, and Y. Ebihara, An analysis ofTrouvelot’s auroral drawing on 1/2March 1872: Plausible evidence forrecurrent geomagnetic storms. J. Geophys. Res. Space Phys., 125(10), e2020JA028227, Oct. 10, 2020 (10.1029/2020JA028227).

Bamba, Y., S. Inoue, and S. Imada, Intrusion of Magnetic Peninsula toward the Neighboring Opposite-polarity Region That Triggers the Largest Solar Flare in Solar Cycle 24, Astrophys. J., 894(1), 29, May 1, 2020 (10.3847/1538-4357/ab85ca).

Belakhovsky V. B., K. Shiokawa, A. Matsuoka, Y. Kasahara, I. Shinohara, Y. Miyoshi, S.-Y. Wang, Y. Kazama, S. Kasahara, and S. Yokota, The Long-Lasting QP Emissions Observed on Arase Satellite and Lovozero Station. in Conference Proceedings: 2021 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science, IEEE, 9232442, Oct. 20, 2020 (10.23919/URSIGASS49373.2020.9232442).

Boocock, C., K. Kusano, and D. Tsiklauri, The effects of oscillations and collisions of emerging bipolar regions on the triggering of solar flares. Astrophys. J., 900(1), 65, Sep. 1, 2020 (10.3847/1538-4357/aba61a).

Case, N. A., D. P. Hartley, A. Grocott, Y. Miyoshi, A. Matsuoka, S. Imajo, S. Kurita, I. Shinohara, and M. Teramoto, Inner magnetospheric response to the interplanetary magnetic field By component: Van Allen Probes and Arase observations. J. Geophys. Res. Space Phys., 126(1), e2020JA028765, Jan. 2020 (10.1029/2020JA028765).

Chian, A. C. L., S. S. A. Silva, E. L. Rempel, L. R. Bellot Rubio, M. Gošić, K. Kusano, and S.-H. Park, Lagrangian chaotic saddles and objective vortices in solar plasmas. Phys. Rev. E, 102(6), 060201, Dec. 3, 2021 (10.1103/PhysRevE.102.060201).

Cliver, E. W., H. Hayakawa, J. J. Love, and D. F. Neidig, On the size of the flare associated with the solar proton event in 774 AD. Astrophys. J., 903(1), 41, Nov. 1, 2020 (10.3847/1538-4357/abad93).

Colpitts, C., Y. Miyoshi, Y. Kasahara, G. L. Delzanno, J. R. Wygant, C. A. Cattell, A. Breneman, C. Kletzing, G. Cunningham, M. Hikishima et al., First direct observations of propagation of discrete chorus elements from the equatorial source to higher latitudes, using the Van Allen Probes and Arase satellites. J. Geophys. Res. Space Phys., 125(10), e2020JA028315 (oct. 2020 (10.1029/2020JA028315).

Ezoe, Y., R. Funase, H. Nagata, Y. Miyoshi, S. Kasahara, H. Nakajima, I. Mitsuishi, K. Ishikawa, J. Hiraga, K. Mitsuda et al., GEO-X (GEOspace x-ray imager). Proc. SPIE, 11444, 1144428, Dec.13, 2020 (10.1117/12.2560780).

Fukizawa, M., T. Sakanoi, Y. Miyoshi, Y. Kazama, Y. Katoh, Y. Kasahara, S. Matsuda, A. Matsuoka, S. Kurita, M. Shoji, M. Teramoto, S. Imajo et al., Pitch-angle scattering of inner magnetospheric electrons caused by ECH waves obtained with the Arase satellite. Geophys. Res. Lett., 47(23), e2020GL089926, Oct. 29, 2020 (10.1029/2020GL089926).

Gordovskyy, M., P. K. Browning, S. Inoue, E. P. Kontar, K. Kusano, and G. E. Vekstein, Forward modelling of particle acceleration and transport in an individual solar flare. Astrophys. J., 902(2), 147, Oct. 23, 2020 (10.3847/1538-4357/abb60e).

Hashimoto, K. K., T. Kikuchi, I. Tomizawa, K. Hosokawa, J. Chum, D. Buresova, M. Nose, and K. Koga, Penetration electric fields observed at middle and low latitudes during the 22 June 2015 geomagnetic storm. Earth Planets Space, 72, 71, May 26, 2020 (10.1186/s40623-020-01196-0).

Hayakawa, H., M. J. Owens, M. Lockwood, and M. Sôma, The solar corona during the total eclipse on 1806 June 16: Graphical evidence of the coronal structure during the Dalton minimum, Astrophys. J., 900(2), 114, Sep. 10, 2020 (10.3847/1538-4357/ab9807).

Hayakawa, H., K. Schlegel, B. P. Besser, and Y. Ebihara, Candidate auroral observations during the major solar-terrestrial storm in May 1680: Implication for space weather events during the Maunder Minimum. Astrophys. J., 909(1), 29, Mar. 2021 (10.3847/1538-4357/abb3c2).

Hayakawa, H., T. Iju, K. Murata, and B. P. Besser, Daniel Mögling's sunspot observations in 1626-1629: A manuscript reference for the solar activity before the Maunder Minimum, Astrophys. J., 909(2), 194, Mar. 17, 2021 (10.3847/1538-4357/abdd34).

Hayakawa, H., J. R. Ribeiro, Y. Ebihara, A. P. Correia, and M. Sôma, South American auroral reports during the Carrington storm. Earth Planets Space, 72, 122, Aug. 26, 2020 (10.1186/s40623-020-01249-4).

Hayakawa, H., Y. Ebihara, A. A. Pevtsov, A. Bhaskar, N. Karachik, and D. M. Oliveira, Intensity and time series of extreme solar-terrestrial storm in 1946 March. Mon. Not. Roy. Astron. Soc., 497(4), 5507–5517, Oct. 2020 (10.1093/mnras/staa1508).

Hayakawa, H., M. Lockwood, M. J. Owens, M. Sôma, B. P. Besser and L. van Driel-Gesztelyi, Graphical evidence for the solar coronal structure during the Maunder minimum: comparative study of the total eclipse drawings in 1706 and 1715, J. Space Weather Space Clim., 11, 1, Jan. 22, 2021 (10.1051/swsc/2020035).

Hayakawa, H., S. P. Blake, A. Bhaskar, K. Hattori, D. M. Oliveira, and Y. Ebihara, The extreme space weather event in February/March 1941. Astrophys. J., 908(2), 2019, Feb. 2021 (10.3847/1538-4357/abb772).

Hayakawa, H., T. Iju, S. Uneme, B. P. Besser, S. Kosaka, and S. Imada, Reanalyses of the sunspot observations of Fogelius and Siverus: Two “Long-Term” observers during the Maunder Minimum. Mon. Not. Roy. Astron. Soc., in press (10.1093/mnras/staa2965).

Hayakawa, H., C. Kuroyanagi, V. M. S. Carrasco, S. Uneme, B. P. Besser, M. Sôma, and S. Imada, Sunspot observations at the Eimmart Observatory and in Its neighborhood during the late Maunder Minimum (1681–1718). Astrophys. J., 909(2), 166, Mar. 15, 2021 (10.3847/1538-4357/abd949).

Hayakawa, H., K. Hattori, A. A. Pevtsov, Y. Ebihara, M. A. Shea, K. G. McCracken, I. A. Daglis, A. T. Bhaskar, P. Ribeiro, and D. J. Knipp, The intensity and evolution of the extreme solar and geomagnetic storms in 1938 January. Astrophys. J., 909(2), 197, Mar. 17, 2021 (10.3847/1538-4357/abc427).

Hayakawa, H., Y. Fujii, K. Murata, Y. Mitsuma, Y. Cheng, N. Nogami, K. Ichikawa, H. Sano, K. Tsumura, Y. Kawamoto, and M. Nishino, Three case reports on the cometary plasma tail in the historical documents. J. Space Weather Space Clim., 11, 21, Mar. 8, 2021 (10.1051/swsc/2020045).

Hayakawa, H., P. Ribeiro, J. M. Vaquero, M. C. Gallego, D. J. Knipp, F. Mekhaldi, A. Bhaskar, D. M. Oliveira, Y. Notsu, V. M. S. Carrasco et al., The extreme space weather event in 1903 October/November: an outburst from the quiet Sun. Astrophys. J. lett., 897(1), L10, Jul. 1, 2020 (10.3847/2041-8213/ab6a18).

Hendry, A. T., O. Santolik, Y. Miyoshi, A. Matsuoka, C. J. Rodger, M. A. Clilverd, C. A. Kletzing, M. Shoji, and I. Shinohara, A multi-instrument approach to determining the source-region extent of EEP-driving EMIC waves, Geophys. Res. Lett., 47(7), e2019GL086599, Apr. 16, 2020 (10.1029/2019GL086599).

Hosokawa, K., Y. Miyoshi, S.-I. Oyama, Y. Ogawa, S. Kurita, Y. Kasahara, Y. Kasaba, S. Yagitani, S. Matsuda, M. Ozaki et al., Over-darkening of pulsating aurora. J. Geophys. Res. Space Phys., in press (10.1029/2020JA028838).

Hotta, H., and H. Iijima, On rising magnetic flux tube and formation of sunspots in a deep domain. Mon. Not. Roy. Astron. Soc., 494(2), 2523–2537, May 2020 (10.1093/mnras/staa844).

Ieda, A., Atomic oxygen ion-neutral collision frequency models at ionospheric temperatures, J. Geophys. Res. Space Phys., 126(1), e2020JA028441, Jan. 2021 (10.1029/2020JA028441).

Iijima, H., Energy-consistent finite difference schemes for compressible hydrodynamics and magnetohydrodynamics using nonlinear filtering. J. Comput. Phys., in press (10.1016/

Imada, S., S. Kato, and M. Fujiyama, Statistical analysis of asymmetric sunspot decay observed by Hinode. Sol. Phys., 295(11), 154, Nov. 9, 2020 (10.1007/s11207-020-01724-x).

Imada, S., K. Motoba, M. Fujiyama, and H. Iijima, Solar cycle-related variation in solar differential rotation and meridional flow in solar cycle 24 . Earth Planets Space, 72, 182, Nov. 26, 2020 (10.1186/s40623-020-01314-y).

Imajo, S., M. Nosé, M. Aida, N. Higashio, H. Matsumoto, K. Kiyokazu, C. Smith, R. J. MacDowall, and A. Yoshikawa, Evolution of field-aligned current in the meridional plane during substorm: multipoint observations from satellites and ground stations. Earth Planets Space, 72, 58, May 7, 2020 (10.1186/s40623-020-01182-6).

Imajo, S., Y. Miyoshi, Y. Kazama, K. Asamura, I. Shinohara, K. Shiokawa, Y. Kasahara, Y. Kasaba, A. Matsuoka, S.-Y. Wang et al. (C. W. Jun, M. Shoji, S. Nakamura, M. Kitahara, T. Hori), Active auroral arc powered by accelerated electrons from very high altitudes. Sci. Rep., 11, 1610, Jan. 18, 2021 (10.1038/s41598-020-79665-5).

Inaba, Y., K. Shiokawa, S.-I. Oyama, Y. Otsuka, A. Oksanen, A. Shinbori, A.Y. Gololobov, Y. Miyoshi, Y. Kazama, S.-Y. Wang et al. (T. Hori, M. Shoji), Plasma and field observations in the magnetospheric source region of a Stable Auroral Red (SAR) arc by the Arase satellite on 28 March 2017. J. Geophys. Res. Space Phys., 125(10), e2020JA028068, Oct. 2020 (10.1029/2020JA028068).

Kaneko, T., S.-H. Park, and K. Kusano, Data-driven MHD simulation of successive solar plasma eruptions . Astrophys. J., 909(2), 155, Mar. 2021 (10.3847/1538-4357/abe414).

Kataoka, R., Y. Asaoka, S. Torii, S. Nakahira, H. Ueno, S. Miyake, Y. Miyoshi, S. Kurita, M. Shoji, Y. Kasahara et al., Plasma waves causing relativistic electron precipitation events at International Space Station: Lessons from conjunction observations with Arase satellite. J. Geophys. Res. Space Phys., 125(9), e2020JA027875, Sep. 2020 (10.1029/2020JA027875).

Kawabata, Y., S. Inoue, and T. Shimizu, Extrapolation of three-dimensional magnetic field structure in flare-productive active region with different initial conditions. Astrophys. J., 895(2), 105, Jun. 2020 (10.3847/1538-4357/ab8ea9).

Kawabata, Y., A. Ramos, S. Inoue, and T. Shimizu, Chromospheric magnetic field: A comparison of He I 10830 Å observations with nonlinear force-free field extrapolation. Astrophys. J., 898(1), 32, Jul. 2020 (10.3847/1538-4357/ab9816).

Kawai, T., and S. Imada, Energy distribution of small-scale flares derived using a genetic algorithm. Astrophys. J., 906(1), 2, Jun. 2021 (10.3847/1538-4357/abc9ae).

Kawai, T., S. Imada, S. Nishimoto, K. Watanabe, and T. Kawate, Nowcast of an EUV dynamic spectrum during solar flares. J. Atmos. Sol.-Terr. Phys., 205, 105302, Sep. 1, 2020 (10.1016/j.jastp.2020.105302).

Kawamura, Y., K. Hosokawa, S. Nozawa, Y. Ogawa, T. Kawabata, S. Oyama, Y. Miyoshi, S. Kurita, and R. Fujii, Estimation of the emission altitude of pulsating aurora using the five-wavelength photometer. Earth Space Sci., 72, 96, Jul. 10, 2020 (10.1186/s40623-020-01229-8).

Kawate, T., T. Tsuzuki, T. Shimizu, S. Imada, Y. Katsukawa, H. Hara, Y. Suematsu, K. Ichimoto, T. Hattori, and S. Narasaki, A sensitivity analysis of the updated optical design for EUVST on the Solar-C mission. Proc. SPIE, 11444, 114443J, Dec. 13, 2020 (10.1117/12.2560573).

Kazama, Y., H. Kojima, Y. Miyoshi, Y. Kasahara, S. Kasahara, H. Usui, B.-J. Wang, S.-Y. Wang, S. W. Y. Tam, T.-F. Chang et al. (M. Shoji), Extremely collimated electron beams in the high latitude magnetosphere observed by Arase, Geophys. Res. Lett., 48(5), e2020GL090522, Mar. 21, 2021 (10.1029/2020GL090522).

Kihara, K. Y. Huang, N. Nishimura, N. V. Nitta, S. Yashiro, K. Ichimoto, and A. Asai, Statistical analysis of the relation between coronal mass ejections and solar energetic particles. Astrophys. J., 900(1), 75Sep. 1, 2020 (10.3847/1538-4357/aba621).

Kikuchi, T., J. Chum, I. Tomizawa, K. K. Hashimoto, K. Hosokawa, Y. Ebihara, K. Hozumi, and P. Supnithi, Penetration of the electric fields of the geomagnetic sudden commencement over the globe as observed with the HF Doppler sounders and magnetometers, Earth Planets Space,73, 10, Jan. 2021 (10.1186/s40623-020-01350-8).

Kim, H., K. Shiokawa, J. Park, Y. Miyoshi, J. Hwang, and A. Kadokura, Ionospheric plasma density oscillation related to EMIC Pc1 waves. Geophys. Res. Lett., 47(15), e2020GL089000, Aug. 16, 2020 (10.1029/2020GL089000).

Kim, H., K. Shiokawa, J. Park, Y. Miyoshi, C. Stolle, and S. Buchert, Statistical analysis of Pc1 wave ducting deduced from Swarm satellites. J. Geophys. Res. Space Phys., 126(3), e2020JA029016, Mar. 2021 (10.1029/2020JA029016).

Kim, H., K. Shiokawa, J. Park, Y. Miyoshi, Y. Miyashita, C. Stolle, K.-H. Kim, J. Matzka, S. Buchert, T. Fromm, and J. Hwang, Modulation of Pc1 wave ducting by equatorial plasma bubble. Geophys. Res. Lett., 47(9), e2020GL088054 , May 16, 2020 (10.1029/2020GL088054).

Kitamura, N., Y. Omura, S. Nakamura, T. Amano, S. A. Boardsen, N. Ahmadi, O. Le Contel, P.-A. Lindqvist, R. E. Ergun, Y. Saito et al., Observations of the source region of whistler mode waves in magnetosheath mirror structures. J. Geophys. Res. Space Phys., 125(5), e2019JA027488, May 2020 (10.1029/2019JA027488).

Kliem, B., J.-W. Lee, R. Liu, S. M. White, C. Liu, and S. Masuda, Non-equilibrium flux rope formation by confined flares preceding a solar coronal mass ejection, Astrophys., J., 909(1), 91, Mar. 2021 (10.3847/1538-4357/abda37).

Kolpak, V. I., M. M. Mogilevsky, D. V. Chugunin, A. A. Chernyshov, I. L. Moiseenko, A. Kumamoto, F. Tsuchiya, Y. Kasahara, M. Shoji, Y. Miyoshi, and I. Shinohara, Statistical properties of auroral kilometer radiation: based on ERG (Arase) satellite data. Solar-Terrestrial Physics, 7(1), 11–16, Mar. 29, 2021 (10.12737/stp-71202102).

Krucker, S., S. Masuda, and S. M. White, Microwave and hard X-ray flare observations by NoRH/NoRP and RHESSI: peak-flux correlations, Astrophys. J., 894(2), 158 , May 18, 2020 (10.3847/1538-4357/ab8644).

Kumar, S., B. Veenadhari, D. Chakrabarty, S. Tulasi Ram, T. Kikuchi, and Y. Miyoshi, Effects of IMF By on ring current asymmetry under southward IMF Bz conditions observed at ground magnetic stations: Case studies. J. Geophys. Res. Space Phys., 125(10), e2019JA027493, Oct. 2020 (10.1029/2019JA027493).

Kusano, K., T. Iju, Y. Bamba, and S. Inoue, A physics-based method that can predict imminent large solar flares, Science, 369(6503), 587–591, Jul. 31 2020 (10.1126/science.aaz2511).

Lee, E.-J., S.-H. Park, and Y.-J. Moon, Time series analysis of photospheric magnetic parameters of flare-quiet versus flaring active regions: Scaling properties of fluctuations. Sol. Phys., 295(9), 123, Sep. 7 2020 (10.1007/s11207-020-01690-4).

Lee, J., S M. White, X. Chen, Y. Chen, H. Ning, B. Li, and S. Masuda, Microwave study of a solar circular ribbon flare. Astrophys. J. lett., 901(1), L10, Sep. 20, 2020 (10.3847/2041-8213/abb4dd).

Lee, K.-S., H. Hara, K. Watanabe, A. D. Joshi, D. H. Brooks, S. Imada, A. Prasad, P. Dang, T. Shimizu, S. L. Savage et al., A solar magnetic-fan flaring arch heated by nonthermal particles and hot plasma from an X-ray jet eruption. Astrophys. J., 895(1), 42, May 2020 (10.3847/1538-4357/ab8bce).

Li, X., M. Li, L. O. Amoudry, R. Ramirez-Mendoza, P. D. Thorne, Q. Song, P. Zheng, S. M. Simmons, L.-B. Jordan, and S. J. McLelland, Three-dimensional modelling of suspended sediment transport in the far wake of tidal stream turbines. Renew. Energy, 151, 956–965, May 2020 (10.1016/j.renene.2019.11.096).

Lin, P. H., K. Kusano, D. Shiota, S. Inoue, Satoshi, K. D. Leka, and Y. Mizuno, A new parameter of the photospheric magnetic field to distinguish Eruptive-flare producing aolar active regions. Astrophys. J., 894(1), Apr. 20, 2020 (10.3847/1538-4357/ab822c).

Mangano, V., M. Dósa, M. Fränz, A. Milillo, J. S. Oliveira, Y. J. Lee, S. McKenna-Lawlor, D. Grassi, D. Heyner, A. S. Kozyrev et al., (K. Iwai, Y. Miyoshi), BepiColombo science investigations during cruise and flybys at the Earth, Venus and Mercury. Space Sci. Rev. , 217, 23, Feb. 22, 2021 (10.1007/s11214-021-00797-9).

Martinez-Calderon, C., F. Němec, Y. Katoh, K. Shiokawa, C. Kletzing, G. Hospodarsky, O. Santolik, Y. Kasahara, S. Matsuda, A. Kumamoto et al., (M. Shoji, Y. Miyoshi, N. Nishitani), Spatial extent of quasiperiodic emissions simultaneously observed by Arase and Van Allen Probes on 29 November 2018, J. Geophys. Res. Space Phys., 125(9), e2020JA028126, Sep. 2020 (10.1029/2020JA028126).

Martinez-Calderon, C., Y. Katoh, J. Manninen, O. Santolik, Y. Kasahara, S. Matsuda, A. Kumamoto, F. Tsuchiya, A. Matsuoka, M. Shoji et al. (K. Shiokawa, Y. Miyoshi), Multievent study of characteristics and propagation of naturally occurring ELF/VLF waves using high-latitude ground observations and conjunctions with the Arase satellite. J. Geophys. Res. Space Phys., 126(2), e2020JA028682 , Feb. 2021 (10.1029/2020JA028682).

Matsuda, S., T. Hasegawa, A. Kumamoto, F. Tsuchiya, Y. Kasahara, Y. Miyoshi, Y. Kasaba, A. Matsuoka, and I. Shinohara, Detection of UHR frequencies by a convolutional neural network from Arase/PWE data. J. Geophys. Res. Space Phys., 125(10), e2020JA028075, Oct. 2020 (10.1029/2020JA028075).

Min, K., K. Liu, R. E. Denton, F. Nĕmec, S. A. Boardsen, and Y. Miyoshi, Two-dimensional hybrid particle-in-cell simulations of magnetosonic waves in the dipole magnetic field: On a constant L-shell. J. Geophys. Res. Space Phys., 125(10), e2020JA028414, Oct. 2020 (10.1029/2020JA028414 ).

Miyashita, T., H. Ohya, F. Tsuchiya, A. Hirai, M. Ozaki, K. Shiokawa, Y. Miyoshi, N. Nishitani, M. Teramoto, M. Connorset al. (M. Shoji), ULF Modulation of Energetic Electron Precipitations Observed by VLF/LF Radio Propagation. URSI Radio Science Bulletin, 2020(372), 29–40, Oct. 26, 2020 (10.23919/URSIRSB.2020.9240099).

Miyashita, Y., K. Seki, K. Sakaguchi, Y. Hiraki, M. Nosé, S. Machida, Y. Saito, and W. R. Paterson, On the transition between the inner and outer plasma sheet in the Earth’s magnetotail. J. Geophys. Res. Space Phys., 125(4), e2019JA027561, Apr. 2020 (10.1029/2019JA027561).

Miyoshi, Y., S. Saito, S. Kurita, K. Asamura, K. Hosokawa, T. Sakanoi, T. Mitani, Y. Ogawa, S. Oyama, F. Tsuchiya et al., Relativistic electron microbursts as high-energy tail of pulsating aurora electrons. Geophys. Res. Lett., 47(21), e2020GL090360 , Nov. 16, 2020 (10.1029/2020GL090360) .

Muraki, Y., J. F. Valdes-galicia, L. X. Gonzalez, K. Kamiya, Y. Katayose, K. Koga, H. Matsumoto, S. Masuda, Y. Matsubara, Y. Nagai et al., Possible detection of solar gamma-rays by grond-level detectors in solar flares on 2011 March 7. Publ. Astron. Soc. Jpn. 72(2), 18, Apr. 2020 (10.1093/pasj/psz141).

Nagatsuma, T., A. Nakamizo, Y. Kubota, M. Nakamura, K. Koga, Y. Miyoshi, and H. Matsumoto, Development of space environment customized risk estimation for satellites (SECURES), Earth Space Sci., 73, 26, Jan. 25, 2021 (10.1186/s40623-021-01355-x).

Nakano, S., T. Hori, K. Seki, and N. Nishitani, A framework for estimating spherical vector fields using localized basis functions and its application to SuperDARN data processing. Earth Planets Space, 72, 46, Apr. 7, 2020 (10.1186/s40623-020-01168-4).

Nishimoto, S., K. Watanabe, S. Imada, T. Kawate, and K.-S. Lee, Statistical and observational research on solar flare EUV spectra and geometrical features. Astrophys. J., 904(1), 31, Nov. 20 ,2020 (10.3847/1538-4357/abbacb ).

Nishitani, N., Y. Hamaguchi, and T. Hori, Development of remote HF wave receiver in the backlobe direction of the SuperDARN Hokkaido East radar: Initial observations. Polar Sci., in press (10.1016/j.polar.2021.100669).

Nosé, M., A. Matsuoka, A. Kumamoto, Y. Kasahara, M. Teramoto, S. Kurita, J. Goldstein, L. M. Kistler, S. Singh, A. Gololobov, K. Shiokawa, S. Imajo et al. (M. Shoji, Y. Miyoshi), Oxygen torus and its coincidence with EMIC wave in the deep inner magnetosphere: Van Allen Probe B and Arase observations. Earth Planets Space, 72(1), 111, Aug. 3, 2020 (10.1186/s40623-020-01235-w).

Okamoto, K., Y. Nakano, S. Masuda, Y. Itow, M. Miyake, T. Terasawa, S. Ito, and M. Nakahata, Development of a method for determining the search window for solar flare neutrinos. Sol. Phys., 295(10), 133, Oct. 6, 2020 (10.1007/s11207-020-01706-z).

Oliveira, D. M., E. Zesta, H. Hayakawa, and A. T. Bhaskar, Estimating satellite orbital drag during historical magnetic superstorms. Space Weather, 18(11), e2020SW002472, Nov. 2020 (10.1029/2020SW002472).

Oliveira, D. M., H. Hayakawa, A. Bhaskar, E. Zesta, and G. Vichare, A possible case of sporadic aurora observed at Rio de Janeiro. Earth Planets Space, 72, 82, Jun. 6, 2020 (0.1186/s40623-020-01208-z).

Oyama, S., A. Shinbori, Y. Ogawa, M. Kellinsalmi, T. Raita, A. Aikio, H. Vanhamäki, K. Shiokawa, I. Virtanen, L. Cai et al. (M. Shoji), An ephemeral red arc appeared at 68°ML at a pseudo breakup during geomagnetically quiet conditions. J. Geophys. Res. Space Phys., 125(10), e2020JA028468, Oct. 2020 (10.1029/2020JA028468).

Ozaki, M., K. Shiokawa, R. B. Horne, M. J. Engebretson, M. Lessard, Y. Ogawa, K. Hosokawa, M. Nose, Y. Ebihara, A. Kadokura et al. (Y. Miyoshi, C.-W. Jun), Magnetic conjugacy of Pc1 waves and isolated proton precipitation at subauroral latitudes: Importance of ionosphere as intensity modulation region. Geophys. Res. Lett., 48(5), e2020GL091384, Mar. 16, 2021 (10.1029/2020GL091384 ).

Park, S. H., An observational test of solar plasma heating by magnetic flux cancellation. Astrophys. J., 897(1), 49, Jul. 1, 2020 (10.3847/1538-4357/ab93ca).

Park, S. H., K. D. Leka, and K. Kusano, Magnetic helicity flux across solar active region photospheres. I. hemispheric sign preference in solar cycle 24. Astrophys. J., 904(1), 6, Nov. 2020 (10.3847/1538-4357/abbb93).

Pevtsov, A. A., Y. Liu, I. Virtanen, L. Bertello, K. Mursula, K. D. Leka, and A. L. H. Hughes, On a limitation of Zeeman polarimetry and imperfect instrumentation in representing solar magnetic fields with weaker polarization signal. J. Space Weather Space Clim., 11, 14, Feb. 2021 (10.1051/swsc/2021003).

Rees-Crockford, T., D. S. Bloomfield, E. Scullion, and S.-H. Park, 2D and 3D analysis of a torus-unstable quiet-Sun prominence eruption. Astrophys. J., 897(1), 35, Jul. 1, 2020 (10.3847/1538-4357/ab92a0).

Shimizu, T., S. Imada, T. Kawate, Y. Suematsu, H. Hara, T. Tsuzuki, Y. Katsukawa, M. Kubo, R. Ishikawa, R., Watanabe et al., Solar-C (EUVST) mission: the latest status. Proc. SPIE, 11444, 114440N, Dec. 4, 2020 (10.1117/12.2560887).

Shokawa, K., M. Nosé, S. Imajo, Y.-M. Tanaka, Y. Miyoshi, K. Hosokawa, M. Connors, M. Engebretson, Y. Kazama, S.-Y. Wang et al. (T. Hori, M. Shoji), Arase observation of the source region of auroral arcs and diffuse auroras in the inner magnetosphere. J. Geophys. Res. Space Phys., 125(8), e2019JA027310, Aug. 2020 (10.1029/2019JA027310).

Silverman, S. M., and H. Hayakawa, The Dalton Minimum and John Dalton’s auroral observations. J. Space Weather Space Clim., 11, 17, Feb. 18, 2021 (10.1051/swsc/2020082)..

Suematsu, Y., T. Shimizu, H. Hara, T. Kawate, Y. Katsukawa, K. Ichimoto, S. Imada, K. Nagae, A. Yamazaki, and T. Hattori, Thermal design of the solar-C (EUVST) telescope. Proc. SPIE, 11444, 114443K, Dec. 13, 2020 (10.1117/12.2560941).

Sugo, S., O. Kawashima, S. Kasahara, K. Asamura, R. Nomura, Y. Miyoshi, Y. Ogawa, K. Hosokawa, T. Mitani, T. Namekawa et al. (T. Hori), Energy-resolved detection of precipitating electrons of 30–100 keV by a sounding rocket associated with dayside chorus waves. J. Geophys. Res. Space Phys., 126(3), 2020JA028477, Mar. 2021 (10.1029/2020JA028477).

Takeshita Y., K. Shiokawa, Y. Miyoshi, M. Ozaki, Y. Kasahara, S. Oyama, M. Connors, J. Manninen, V. K. Jordanova, D. Baishev et al., Study of spatiotemporal development of global distribution of magnetospheric ELF/VLF waves using ground-based and satellite observations, and RAM-SCB simulations, for the March and November 2017 storms. J. Geophys. Res. Space Phys., 126(2) , 2020JA028216, Feb. 2021 (10.1029/2020JA028216).

Thomas, N., K. Shiokawa, Y. Miyoshi, Y. Kasahara, I. Shinohara, A. Kumamoto, F. Tsuchiya, A. Matsuoka, S. Kasahara, S. Yokota, K. Keika, T. Hori et al., Investigation of small-scale electron density irregularities observed by the Arase and Van Allen Probes satellites inside and outside the plasmasphere. J. Geophys. Res. Space Phys., 126(3), e2020JA027917, Mar. 2021 (10.1029/2020JA027917).

Uchida, H. A., R. Kataoka, A. Kadokura, K. Murase, A. S. Yukimatu, Y. Miyoshi, K. Shiokawa, Y. Ebihara, K. Hosokawa, A. Matsuokaet al., Asymmetric development of auroral surges in the Northern and Southern Hemispheres. Geophys. Res. Lett., 47(13), e2020GL088750, Jul. 16, 2020 (10.1029/2020GL088750).

Uchikawa, Y., L. Cowley, H. Hayakawa, D. M. Willis, and F. R. Stephenson, Provenance of the cross sign of 806 in the Anglo-Saxon Chronicle: a possible lunar halo over continental Europe? Hist. Geo- Space Sci., 11(1), 81–92, Apr. 20, 2020 (10.5194/hgss-11-81-2020 ).

Umeda, T., Paradigm shift in program structure of particle-in-Cell simulations. Advances in Parallel Computing, 36, 455–464, Apr. 2020 (10.3233/APC200072).

Vissers, G. J. M., S. Danilovic, J. de la Cruz Rodriguez, J. Leenaarts, R. Morosin, C. J. Diaz Baso, A. Reid, J. Pomoell, D. J. Price, and S. Inoue, Non-LTE inversions of a confined X2.2 flare: I. The vector magnetic field in the photosphere and chromosphere . Astron. Astrophys., 645, A1, Dec. 21, 2020 (10.1051/0004-6361/202038900).

Wang, Y. B., L. M. Kistler, C. G. Mouikis, J. C. Zhang, J. Y. Lu, D. Welling, L. Rastaetter, S. Bingham, Y. W. Jin, L. Wang, and Y. Miyoshi, Formation of the low-energy “Finger” ion spectral structure near the inner edge of the plasma sheet. Geophys. Res. Lett. , 47(22), e2020GL089875, Nov. 28, 2020 (10.1029/2020GL089875).

Yamakawa, T., K. Seki, T. Amano, N. Takahashi, and Y. Miyoshi, Excitation of internally driven ULF waves by the drift-bounce resonance with ring current ions based on the drift-kinetic simulation. J. Geophys. Res. Space Phys., 125(11), e2020JA028231, Nov. 2020 (10.1029/2020JA028231).

Yamasaki, D., S. Inoue, S. Nagata, and K. Ichimoto, Evolution of the nonpotential magnetic field in the solar active region 12673 based on a nonlinear force-free modeling. Astrophys. J., 908(2), 132, Feb. 18, 2021 (10.3847/1538-4357/abcfbb).

Yoshioka, K., Y. Miyoshi, S. Kurita, M. Teramoto, F. Tsuchiya, A. Yamazaki, G. Murakami, T. Kimura, H. Kita, I. Yoshikawa, and Y. Kasaba, Long-term monitoring of energetic protons at the bottom of Earth’s radiation belt. Space Weather, 19(1), e2020SW002611, Jan. 2021 (10.1029/2020SW002611).

Yue, C., Q. Ma, C.-W. Jun, J. Bortnik, Q. Zong, X. Zhou, E. Jang, Ge. D. Reeves, H. E. Spence, and J. R. Wygant, The modulation of plasma and waves by background electron density irregularities in the inner magnetosphere. Geophys. Res. Lett., 47(15), e2020GL088855, Aug. 16, 2020 (10.1029/2020GL0888559).

Zharkova, S., S. Matthews, V. Zharkov, M. Druett, S. Inoue, I. E. Dammasch, and C. Macrae, Sunquake with a second bounce, other sunquakes, and emission associated with the X9.3 flare of 6 September 2017: I. Observations. Astron. Astrophys., 639, A78, Jul. 10, 2020 (10.1051/0004-6361/201936755).

Zharkova, V., S. Zharkov, M. Druett, S. Matthews, and S. Inoue, Sunquake with a second bounce, other sunquakes, and emission associated with the X9.3 flare of 6 September 2017: II. Proposed interpretation. Astron. Astrophys., 639, A79, Jul. 10, 2020 (10.1051/0004-6361/202037885).

Publications (April 2019 – March 2020)