Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Lee， Jin-Yi"'
Publikováno v:
2024ApJ...963...70L
An important aspect of solar energetic particle (SEP) events is their source populations. Elemental abundance enhancements of impulsive SEP events, originating in presumed coronal reconnection episodes, can be fitted to steep power laws of A/Q, where
Externí odkaz:
http://arxiv.org/abs/2401.01604
Autor:
Cho, Il-Hyun, Nakariakov, Valery M., Moon, Yong-Jae, Lee, Jin-Yi, Yu, Dae Jung, Cho, Kyung-Suk, Yurchyshyn, Vasyl, Lee, Harim
Slow magnetoacoustic waves in a static background provide a seismological tool to probe the solar atmosphere in the analytic frame. By analyzing the spatiotemporal variation of the electron number density of plume structure in coronal holes above the
Externí odkaz:
http://arxiv.org/abs/2008.07848
Autor:
Cho, Il-Hyun, Moon, Yong-Jae, Cho, Kyung-Suk, Nakariakov, Valery M., Lee, Jin-Yi, Kim, Yeon-Han
Publikováno v:
ApJL, 884, L38 (2019)
A new type of chromospheric jets in a polar limb of a coronal hole is discovered in the Ca II filtergram of the Solar Optical Telescope on board the \textit{Hinode}. We identify 30 jets in the Ca II movie of duration of 53 min. The average speed at t
Externí odkaz:
http://arxiv.org/abs/1910.09737
Autor:
Lim, Daye, Moon, Yong-Jae, Park, Jongyeob, Park, Eunsu, Lee, Kangjin, Lee, Jin-Yi, Jang, Soojeong
We develop forecast models of daily probability of major flares (M- and X-class) based on empirical relationships between photospheric magnetic parameters and daily flaring rates from May 2010 to April 2018. In this study, we consider ten magnetic pa
Externí odkaz:
http://arxiv.org/abs/1907.11373
Autor:
Lee, Jin-Yi, Raymond, John C., Reeves, Katharine K., Shen, Chengcai, Moon, Yong-Jae, Kim, Yeon-Han
During transient events such as major solar eruptions, the plasma can be far from the equilibrium ionization state because of rapid heating or cooling. Non-equilibrium ionization~(NEI) is important in rapidly evolving systems where the thermodynamica
Externí odkaz:
http://arxiv.org/abs/1905.11632
Autor:
Cho, Il-Hyun, Moon, Yong-Jae, Nakariakov, Valery M., Yu, Dae Jung, Lee, Jin-Yi, Bong, Su-Chan, Kim, Rok-Soon, Cho, Kyung-Suk, Kim, Yeon-Han, Lee, Jae-Ok
The Alfv\'{e}n speed and plasma beta in photospheric bright points observed by the Broadband Filter Imager (BFI) of the Solar Optical Telescope (SOT) on board the \textit{Hinode} satellite, are estimated seismologically. The diagnostics is based on t
Externí odkaz:
http://arxiv.org/abs/1901.04144
Autor:
Cho, Il-Hyun, Moon, Yong-Jae, Nakariakov, Valery M., Bong, Su-Chan, Lee, Jin-Yi, Song, Donguk, Lee, Harim, Cho, Kyung-Suk
Measurement of the solar wind speed near the Sun is important for understanding the acceleration mechanism of the solar wind. In this study, we determine 2D solar wind speeds from 6 to 26 solar radii by applying Fourier motion filters to \textit{SOHO
Externí odkaz:
http://arxiv.org/abs/1806.08540
We investigate the heating of an erupting prominence and loops associated with a coronal mass ejection and X-class flare. The prominence is seen in absorption in EUV at the beginning of its eruption. Later the prominence changes to emission, which in
Externí odkaz:
http://arxiv.org/abs/1706.09116
Akademický článek
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We investigate seven eruptive plasma observations by Hinode/XRT. Their corresponding EUV and/or white light CME features are visible in some events. Five events are observed in several passbands in X-rays, which allows the determination of the erupti
Externí odkaz:
http://arxiv.org/abs/1411.2229