Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mmsai..48..509a&link_type=abstract
(Advanced School of Astronomy, Course on the Sun, a Tool for Stellar Physics, 6th, Erice, Italy, Aug. 8-21, 1976.) Società Astro
Astronomy and Astrophysics
Astronomy
Atmospheric Circulation, Chromosphere, Oso-8, Satellite Observation, Convective Flow, Photosphere, Power Spectra, Solar Corona, Spaceborne Experiments, Spectral Line Width, Time Series Analysis
Scientific paper
The Harvard experiment flown on Skylab did not have a spectral resolution sufficient to detect Doppler shifting of chromospheric and chromosphere-corona transition lines. An experiment flown by the Naval Research Laboratory on Skylab had sufficient spectral resolution to study Doppler shifts, but did not have sufficient spatial and temporal resolution for studying oscillations. The OSO-8 experiment discussed in the present paper provided (for the first time) observations of the EUV emission lines of the chromosphere and lower transition region with sufficient spectral spatial, and temporal resolution to assess the velocities associated with chromospheric oscillations and the impulsive brightenings of the transition region lines. The associated power spectra are given and discussed.
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