2024-09-24T22:21:43.000Z http://sot.lmsal.com Mr. Sam Freeland Lockheed Martin Solar and Astrophysics Laboratory (LMSAL) http://www.lmsal.com Lockheed Martin Advanced Tech Center, 3251 Hanover Rd, O/ADBS, B/252, Palo Alto, CA 94304 null null HINODE SOTSP Yoshitake Brooks Tiwari and DeRosa (RCO) 373 HOP 373 Filament FIL FIL 15 20190926_083116 373 401 402 15 70 1024 2 1 1 2 0 21 2011 512 1 655.098 -391.149 162.304 162.304 2019-09-26T08:31:16.000Z 2019-09-26T09:03:38.000Z 655.098 -391.149 Formation and destabilisation of filaments Fast map, 164x164", 1-side, Q65, no repeat Main Objective: SOT/SP would measure the parasitic polarities in the barbs of filaments. Scientific Justification: Filaments are formed with shear flows in channel. It will be interesting to detect the footpoints of filament and mass motions inside the barbs and along the filaments. Spectroscopic observations on the disk in chromosphere lines (Mg II h and k, Halpha) and photosphere lines are required to show the dynamics of the filament by counter-streaming or by turbulence. HMI continua and magnetogram will provide data to follow the large scale evolution of the channel. With HMI surface velocities by using CST (LCT) methods will be determined leading to an estimate of the shear at large scale of the filament and Hinode/SOT will locate the parasitic polarities where the filament has its footpoints.;;Main Objective: SOT/SP would measure the parasitic polarities in the barbs of filaments. Scientific Justification: Filaments are formed with shear flows in channel. It will be interesting to detect the footpoints of filament and mass motions inside the barbs and along the filaments. Spectroscopic observations on the disk in chromosphere lines (Mg II h and k, Halpha) and photosphere lines are required to show the dynamics of the filament by counter-streaming or by turbulence. HMI continua and magnetogram will provide data to follow the large scale evolution of the channel. With HMI surface velocities by using CST (LCT) methods will be determined leading to an estimate of the shear at large scale of the filament and Hinode/SOT will locate the parasitic polarities where the filament has its footpoints. ivo://sot.lmsal.com/VOEvent#2019-09-26T08:30:00Z