Oscillation processes in chromospheric spicules

Details Oscillation processes in chromospheric spicules Oscillation processes in chromospheric spicules

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985sogru.120..513g&link_type=abstract

Akademiia Nauk Gruzinskoi SSR, Soobshcheniia (ISSN 0132-1447), vol. 120, Dec. 1985, p. 513-515. In Russian.

Physics

Chromosphere, Line Spectra, Power Spectra, Solar Oscillations, Spicules, Helium, High Resolution, Radial Velocity, Stellar Spectrophotometry, Temporal Resolution

Scientific paper

A power spectrum is presented of short-period radial velocity oscillations of chromospheric spicules, based on high-resolution observations. Calculations of the integrated spectrum are based on spectra of 15 chromospheric spicules calculated for five altitudes between 5000 and 8000 km above the photosphere. The spectrum shows distinct peaks for periods of about 2 and 3 minutes. The existence of a 5-min oscillation, reported first by Kulidzhanishvili and Nikol'skii (1978), is confirmed.

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