Computer Science – Sound
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ssrv...29..407b&link_type=abstract
(Schweizerische Naturforschende Gesellschaft and Eidgenoesische Technische Hochschule Zuerich, Conference on Solar Physics from
Computer Science
Sound
7
High Resolution, Rocket Sounding, Solar Atmosphere, Solar Spectra, Spacelab Payloads, Ultraviolet Spectra, Chromosphere, Fine Structure, Rocket-Borne Instruments, Solar Corona, Spatial Resolution, Temporal Resolution
Scientific paper
High spatial (about 1 arcsec) and temporal (20 sec) resolution UV solar spectroscopy has been carried out by the Naval Research Laboratory from sounding rockets since 1975. The High Resolution Telescope and Spectrograph payload, consisting of a 300 mm diameter x 4500 mm focal length Cassegrain telescope and the tandem Woodsworth spectrograph, was used to make the observations. Using this instrument, a multitude of highly energetic phenomena can be observed in the chromosphere, transition zone, and corona. High-resolution photographs of the UV continuum at 1600 A, used to study the fine structure and evolution of the temperature minimum layer, show that because of its strong spatial and temporal intensity fluctuations, the 1600 A continuum emission comes from not only the temperature minimum, but a variety of temperature regimes. Similar spatial and temporal behavior is seen in lower chromospheric lines of Si I. Typical line profiles of the C IV 1550 A line illustrate the fine structure and dynamics of the transition zone; the mass and energy flux balance in this zone is also determined.
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