Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...169..323k&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 169, no. 1-2, Nov. 1986, p. 323-328.
Astronomy and Astrophysics
Astrophysics
24
Photointerpretation, Photosphere, Solar Granulation, Mesoscale Phenomena, Photoelectricity, Statistical Analysis
Scientific paper
A statistical analysis of the intensity fluctuations of the solar photosphere, recorded photoelectrically, shows the influence of both seeing effects and especially the 5 min oscillations when intensity fluctuations at scales larger than the scale of the granulation are considered. A one-dimensional photo-electric set of records was time-averaged in order to show the existence of quasi-stationary cells in the range 5arcsec - 50arcsec, with amplitude modulations of up to ±30K. The photographic processing of a 23-min time sequence of excellent granulation pictures also showed the existence of cells of quasi-stationary intensity modulations. The amplitudes and stationary nature are larger for larger sizes, but the existence of cells at the meso-granulation scale is fully confirmed.
Koutchmy Serge
Lebecq Charles
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