The Helioseismological CORONAS-F DIFOS Experiment

Details The Helioseismological CORONAS-F DIFOS Experiment The Helioseismological CORONAS-F DIFOS Experiment

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004arep...48..871l&link_type=abstract

Astronomy Reports, vol. 48, Issue 10, p.871-875

Astronomy and Astrophysics

Astronomy

6

Scientific paper

The CORONAS-F DIFOS experiment continues the CORONAS-I studies started in 1994, devoted to investigations of solar global oscillations. CORONAS-F was launched July 31, 2001. Variations in the intensity of the solar radiation are measured in the six spectral intervals of the multi-channel photometer: 350, 500, 650, 850, 1100, and 1500 nm, with the bandwidths being about 10% of the central wavelength of each interval. The scientific goals of the experiment, a brief description of the instrument, and observational conditions are presented, as well as the data processing techniques. The first observations of the low-order p eigenmodes of the solar oscillations are presented for various wavelength ranges. A decrease in the relative amplitudes with observing wavelength is indicated. The amplitude ratios for various spectral ranges agree well with those detected earlier in ground-and space-based experiments.

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