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

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 Si IV and O IV observed with SUMER on board SOHO have been analyzed in the wavelet bands of J3 = 1 min 36 s to 3 min 12 s an...

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Autores principales: Blanco, S., Bocchialini, K., Costa, A., Domenech, G., Rovira, M., Vial, J.-C.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00380938_v186_n1-2_p281_Blanco
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spelling todo:paper_00380938_v186_n1-2_p281_Blanco2023-10-03T14:48:30Z Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence Blanco, S. Bocchialini, K. Costa, A. Domenech, G. Rovira, M. Vial, J.-C. 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 Si IV and O IV observed with SUMER on board SOHO have been analyzed in the wavelet bands of J3 = 1 min 36 s to 3 min 12 s and J4 = 3 min 12 s to 6 min 24 s. For all species, oscillations in the J4 band were dominant. We found relevant differences between the behavior of line D1 (1393.76 Å) corresponding to Si IV and the set D2 (1401.16 Å), D3 (1404.81 Å), D4 (1402.77 Å) corresponding to O IV, O IV and Si IV respectively. We also report the identification of a pulse in the intensity of the line D1 that appears in the range of 15-20 min. This disturbance seems to travel with a speed of about 170 km s-1. Fil:Blanco, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Domenech, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rovira, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00380938_v186_n1-2_p281_Blanco
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description 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 Si IV and O IV observed with SUMER on board SOHO have been analyzed in the wavelet bands of J3 = 1 min 36 s to 3 min 12 s and J4 = 3 min 12 s to 6 min 24 s. For all species, oscillations in the J4 band were dominant. We found relevant differences between the behavior of line D1 (1393.76 Å) corresponding to Si IV and the set D2 (1401.16 Å), D3 (1404.81 Å), D4 (1402.77 Å) corresponding to O IV, O IV and Si IV respectively. We also report the identification of a pulse in the intensity of the line D1 that appears in the range of 15-20 min. This disturbance seems to travel with a speed of about 170 km s-1.
format JOUR
author Blanco, S.
Bocchialini, K.
Costa, A.
Domenech, G.
Rovira, M.
Vial, J.-C.
spellingShingle Blanco, S.
Bocchialini, K.
Costa, A.
Domenech, G.
Rovira, M.
Vial, J.-C.
Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence
author_facet Blanco, S.
Bocchialini, K.
Costa, A.
Domenech, G.
Rovira, M.
Vial, J.-C.
author_sort Blanco, S.
title Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence
title_short Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence
title_full Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence
title_fullStr Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence
title_full_unstemmed Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence
title_sort multiresolution wavelet analysis of sumer/soho observations in a solar prominence
url http://hdl.handle.net/20.500.12110/paper_00380938_v186_n1-2_p281_Blanco
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AT domenechg multiresolutionwaveletanalysisofsumersohoobservationsinasolarprominence
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