Study of Doppler velocities and their relationship with Magnetic field oscillations in the penumbra of Sunspots
Local oscillations of the Doppler Velocities in the penumbra of the sunspot AR12186 were studied. For thispurpose, the images were aligned using the Enhanced Correlation Coefficient (ECC), ECC+Rotation andthe method proposed by Griñón-Marín et al. (2020). The wavelet transform was used to extract th...
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia
2022
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/15245 |
| _version_ | 1801706357997436928 |
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| author | Ordoñez Araujo, Francisco J. Calvo Mozo, Benjamín Castellanos Durán, Sebastian J. |
| author_facet | Ordoñez Araujo, Francisco J. Calvo Mozo, Benjamín Castellanos Durán, Sebastian J. |
| author_sort | Ordoñez Araujo, Francisco J. |
| collection | OJS |
| description | Local oscillations of the Doppler Velocities in the penumbra of the sunspot AR12186 were studied. For thispurpose, the images were aligned using the Enhanced Correlation Coefficient (ECC), ECC+Rotation andthe method proposed by Griñón-Marín et al. (2020). The wavelet transform was used to extract the waveletpower. Analyzing the distribution of the oscillation periods of the wavelet powers locally and globally, nodominant period was identified in these powers. Also, an attenuation in the Doppler powers of 22,1% and41,6% was obtained with respect to the powers obtained through the ECC method obtained through theECC+Rotation method for the powers found using the the Griñón-Marín et al. (2020) method and ECCmethod. In addition, no clear correlation was found between the powers Doppler Velocities, and magneticfield strength at the line of sight for the three alignment methods. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-15245 |
| institution | Revista Ciencia en Desarrollo |
| language | spa |
| publishDate | 2022 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-152452023-03-06T15:46:47Z Study of Doppler velocities and their relationship with Magnetic field oscillations in the penumbra of Sunspots Estudio de las velocidades Doppler y su relación con las oscilaciones del campo magnético en la penumbra de las manchas solares Ordoñez Araujo, Francisco J. Calvo Mozo, Benjamín Castellanos Durán, Sebastian J. Sol: velocidades Doppler -Sol: campos magnéticos – Sol: oscilaciones – Sol: fotósfera – manchas solares. Sun: Doppler velocities -Sun: magnetic fields – Sun: oscillations – Sun: photosphere – sunspotso. Local oscillations of the Doppler Velocities in the penumbra of the sunspot AR12186 were studied. For thispurpose, the images were aligned using the Enhanced Correlation Coefficient (ECC), ECC+Rotation andthe method proposed by Griñón-Marín et al. (2020). The wavelet transform was used to extract the waveletpower. Analyzing the distribution of the oscillation periods of the wavelet powers locally and globally, nodominant period was identified in these powers. Also, an attenuation in the Doppler powers of 22,1% and41,6% was obtained with respect to the powers obtained through the ECC method obtained through theECC+Rotation method for the powers found using the the Griñón-Marín et al. (2020) method and ECCmethod. In addition, no clear correlation was found between the powers Doppler Velocities, and magneticfield strength at the line of sight for the three alignment methods. Se estudiaron las oscilaciones locales de las velocidades Doppler en la penumbra de la mancha solarAR12186. Para ello, se alinearon las imágenes usando el método Enhanced Correlation Coefficient (ECC),ECC+Rotación y el método propuesto por Griñón-Marín et al. (2020). Se utilizó la transformada de waveletpara extraer las potencias wavelet. Analizando la distribución de los períodos de oscilación de las potenciasde wavelet de forma local y global, no se identificó un periodo dominante en dichas potencias. También, seobtuvo una atenuación en las potencias Doppler del 22,1% y 41,6% respecto a las potencias obtenidas através del método ECC+Rotación para las potencias encontradas usando el método ECC y el método deGriñón-Marín et al. (2020). Además, no se encontró una correlación entre las potencias correspondientes alas velocidades Doppler y magnitud del campo magnético en la línea de la visión para los tres métodos dealineación. Universidad Pedagógica y Tecnológica de Colombia 2022-12-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/15245 10.19053/01217488.v1.n2E.2022.15245 Ciencia En Desarrollo; Vol. 1 No. 2E (2022): Núm. 2E (2022): Número Especial: VII Congreso de Astronomía y Astrofísica 2022; 55-62 Ciencia en Desarrollo; Vol. 1 Núm. 2E (2022): Núm. 2E (2022): Número Especial: VII Congreso de Astronomía y Astrofísica 2022; 55-62 2462-7658 0121-7488 spa https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/15245/12663 |
| spellingShingle | Sol: velocidades Doppler -Sol: campos magnéticos – Sol: oscilaciones – Sol: fotósfera – manchas solares. Sun: Doppler velocities -Sun: magnetic fields – Sun: oscillations – Sun: photosphere – sunspotso. Ordoñez Araujo, Francisco J. Calvo Mozo, Benjamín Castellanos Durán, Sebastian J. Study of Doppler velocities and their relationship with Magnetic field oscillations in the penumbra of Sunspots |
| title | Study of Doppler velocities and their relationship with Magnetic field oscillations in the penumbra of Sunspots |
| title_alt | Estudio de las velocidades Doppler y su relación con las oscilaciones del campo magnético en la penumbra de las manchas solares |
| title_full | Study of Doppler velocities and their relationship with Magnetic field oscillations in the penumbra of Sunspots |
| title_fullStr | Study of Doppler velocities and their relationship with Magnetic field oscillations in the penumbra of Sunspots |
| title_full_unstemmed | Study of Doppler velocities and their relationship with Magnetic field oscillations in the penumbra of Sunspots |
| title_short | Study of Doppler velocities and their relationship with Magnetic field oscillations in the penumbra of Sunspots |
| title_sort | study of doppler velocities and their relationship with magnetic field oscillations in the penumbra of sunspots |
| topic | Sol: velocidades Doppler -Sol: campos magnéticos – Sol: oscilaciones – Sol: fotósfera – manchas solares. Sun: Doppler velocities -Sun: magnetic fields – Sun: oscillations – Sun: photosphere – sunspotso. |
| topic_facet | Sol: velocidades Doppler -Sol: campos magnéticos – Sol: oscilaciones – Sol: fotósfera – manchas solares. Sun: Doppler velocities -Sun: magnetic fields – Sun: oscillations – Sun: photosphere – sunspotso. |
| url | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/15245 |
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