Active Region High Velocity Events Observed by Fast Imaging Solar Spectrograph on the NST
Abstract
The Fast Imaging Solar Spectrograph (FISS) is the only spectrograph-based instrument on the NST that is currently operational. With a high spectral resolution of 1.4 x 105 and simultaneous dual spectral band imaging, this instrument can accurately determine the physical parameters of chromospheric features --- filaments, jets and so on. Initial observations captured several peculiar dynamic events that showed high line-of-sight velocities of the order of 20 km s-1 in the vicinity of sunspots. We expect that FISS will provide a better understanding of the physics in the chromosphere with the aid of the unprecedentedly high spatial resolution of NST.
- Publication:
-
AAS/Solar Physics Division Abstracts #42
- Pub Date:
- May 2011
- Bibcode:
- 2011SPD....42.1904A