The kinematics of solar inner coronal transients

摘要: The kinematic properties of a dozen ‘loop-like’ coronal transients have been examined over the range 1.2–2.4 R⊙ from Sun center. Values and trends transient geometry, including radial height, lateral width at maximum extent, distance loop top to height width, fixed above instrument occulting disk 1.2 R⊙, are given. Radial speeds expansion tabulated, 60–900 km s-1, 10–500 respectively. Flare-associated events found exhibit highest speeds, show little acceleration with height; on other hand, eruptiveassociated large accelerations (some in excess 50 m s-2). This clear discrimination between flare eruptive-associated suggests that two different physical processes present; it is suggested flare-associated result an impulsive, localized input corona. On accelerated, subjected appreciable net forces heights one solar radius (or more) limb. It conjectured pressure gradient responsible for generation wind may play important role accelerating these latter events.