Periodicity and distribution of the sudden disappearances of solar prominences in the chromosphere

Details Periodicity and distribution of the sudden disappearances of solar prominences in the chromosphere Periodicity and distribution of the sudden disappearances of solar prominences in the chromosphere

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.173..127d&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 173, no. 1, Nov. 1990, p. 127-144.

Astronomy and Astrophysics

Astrophysics

2

Chromosphere, Solar Prominences, Power Spectra, Solar Atmosphere, Symmetry

Scientific paper

The periodicity and the distribution of the sudden disappearance (SD) of the solar prominences on the chromosphere are studied. The spectral analysis of the SD, from 1039 to 1762 Carrington rotation number, shows a typical period at 138 (10.3 yr) solar rotations in the northern hemisphere and at 153 (11.4 yr) solar rotations in the southern hemisphere of the sun. The power-spectral analysis of the asymmetry index yields a primary peak at 155 (11.6 yr) solar rotations. By plotting the distribution of SD along the Carrington longitude, it can be seen that the distribution of the SD is nearly uniform.

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