Active Region High Velocity Events Observed by Fast Imaging Solar Spectrograph on the NST

Details Active Region High Velocity Events Observed by Fast Imaging Solar Spectrograph on the NST Active Region High Velocity Events Observed by Fast Imaging Solar Spectrograph on the NST

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.1904a&link_type=abstract

American Astronomical Society, SPD meeting #42, #19.04; Bulletin of the American Astronomical Society, Vol. 43, 2011

Physics

Scientific paper

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.

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