Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence

Details Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999soph..186..281b&link_type=abstract

Solar Physics, v. 186, Issue 1/2, p. 281-290 (1999).

Physics

12

Scientific paper

We have studied through a multiresolution wavelet analysis the oscillations in a limb prominence. Intensity fluctuations in time and height corresponding to different lines of Siiv and Oiv observed with SUMER on board SOHO have been analyzed in the wavelet bands of J_3= 1min 36s to 3min 12s and J_4=3min 12s to 6min 24s. For all species, oscillations in the J_4 band were dominant. We found relevant differences between the behavior of line D_1 (1393.76 Å) corresponding to Siiv and the set D_2 (1401.16 Å), D_3 (1404.81 Å), D_4 (1402.77 Å) corresponding to Oiv, Oiv and Siiv respectively. We also report the identification of a pulse in the intensity of the line D_1 that appears in the range of 15-20min. This disturbance seems to travel with a speed of about 170kms^-1.

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