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Kinematic Classification of Coronal Mass Ejections in LASCO C3 Field of View

Moon, Yong-Jae; Lee, Harim; Cho, Il-Hyun +2 more

In this study, we perform a statistical investigation of the kinematic classification of 4264 coronal mass ejections (CMEs) from 1996 to 2015 observed by SOHO/LASCO C3. Using the constant acceleration model, we classify these CMEs into three groups: deceleration, constant velocity, and acceleration motion. For this, we devise three different class…

Application of Support Vector Machine to the Prediction of Geo-Effective Halo CMES

Moon, Yong-Jae; Park, Young-Deuk; Choi, Seong-Hwan +1 more

Low Atmosphere Reconnections Associated with An Eruptive Solar Flare

Moon, Y. -J.; Wang, Haimin; Chae, Jongchul +3 more

Study of Flare-Associated X-Ray Plasma Ejections : II. Morphological Classification

KIM, YEON-HAN; MOON, Y. -J.; CHO, K. -S. +2 more

Observational Tests of Chromospheric Magnetic Reconnection

Moon, Yong-Jae; Chae, Jongchul; Park, So-Young

Sunshine, Earthshine and Climate Change I. Origin of, and Limits on Solar Variability

Dziembowski, W. A.; Goode, Philip R.

Nonpotential Broadening of UV Lines Observed at the Limb of the Quiet Sun

Chae, Jongchul; Yun, Hong Sik; Lee, Hyunsook

We have done a spectroscopic study of the solar transition region using high resolution UV & EUV data obtained by SUMER) on board SOHO. Optically thin and conspicuous emission lines observed at the solar limb are carefully selected to acquire average values of physical parameters for the quiet region as a function of radial distance. Our main …

Steady Flow Model of a Magnetic Flux Tube Constrained to Observed Differential Emission Measure

Chae, Jongchul; Bong, Su-Chan; Yun, Hong Sik

We have investigated one dimensional steady flow model of a typical magnetic flux tube in the solar transition region constrained to observed Differential Emission Measure (DEM) for the average quiet-Sun deduced by Raymond & Doyle (1981) with a flux tube geometry conforming to Doppler shifts of UV lines measured by Chae, Yun & Poland (1998…