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

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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, Susana Alicia Ana, Domenech, Graciela, Rovira, Marta Graciela
Publicado: 1999
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v186_n1-2_p281_Blanco
http://hdl.handle.net/20.500.12110/paper_00380938_v186_n1-2_p281_Blanco
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00380938_v186_n1-2_p281_Blanco
record_format dspace
spelling paper:paper_00380938_v186_n1-2_p281_Blanco2023-06-08T15:02:35Z Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence Blanco, Susana Alicia Ana Domenech, Graciela Rovira, Marta Graciela 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. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v186_n1-2_p281_Blanco 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.
author Blanco, Susana Alicia Ana
Domenech, Graciela
Rovira, Marta Graciela
spellingShingle Blanco, Susana Alicia Ana
Domenech, Graciela
Rovira, Marta Graciela
Multiresolution wavelet analysis of SUMER/SOHO observations in a solar prominence
author_facet Blanco, Susana Alicia Ana
Domenech, Graciela
Rovira, Marta Graciela
author_sort Blanco, Susana Alicia Ana
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
publishDate 1999
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v186_n1-2_p281_Blanco
http://hdl.handle.net/20.500.12110/paper_00380938_v186_n1-2_p281_Blanco
work_keys_str_mv AT blancosusanaaliciaana multiresolutionwaveletanalysisofsumersohoobservationsinasolarprominence
AT domenechgraciela multiresolutionwaveletanalysisofsumersohoobservationsinasolarprominence
AT roviramartagraciela multiresolutionwaveletanalysisofsumersohoobservationsinasolarprominence
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