A long-duration active region: Evolution and quadrature observations of ejective events

Unknown aspects of the initiation, evolution, and associated phenomena of coronal mass ejections (CMEs), together with their capability of perturbing the fragile technological equilibrium on which nowadays society depends, turn them a compelling subject of study. While space weather forecasts are th...

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Autores principales: Cremades, H., Mandrini, C.H., Fuentes, M.C.L., Merenda, L., Cabello, I., López, F.M., Poisson, M.
Formato: SER
Materias:
Sun: Activity
Sun: Coronal mass ejections (CMEs)
Sun: Magnetic fields
Sun: Photosphere
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17439213_v12_n_p60_Cremades
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_17439213_v12_n_p60_Cremades
record_format dspace
spelling todo:paper_17439213_v12_n_p60_Cremades2023-10-03T16:31:28Z A long-duration active region: Evolution and quadrature observations of ejective events Cremades, H. Mandrini, C.H. Fuentes, M.C.L. Merenda, L. Cabello, I. López, F.M. Poisson, M. Sun: Activity Sun: Coronal mass ejections (CMEs) Sun: Magnetic fields Sun: Photosphere Unknown aspects of the initiation, evolution, and associated phenomena of coronal mass ejections (CMEs), together with their capability of perturbing the fragile technological equilibrium on which nowadays society depends, turn them a compelling subject of study. While space weather forecasts are thus far not able to predict when and where in the Sun will the next CME take place, various CME triggering mechanisms have been proposed, without reaching consensus on which is the predominant one. To improve our knowledge in these respects, we investigate a long-duration active region throughout its life, from birth until decay along five solar rotations, in connection with its production of ejective events. We benefit from the wealth of solar remote-sensing data with improved temporal, spatial, and spectral resolution provided by the ground-breaking space missions STEREO, SDO, and SOHO. During the investigated time interval, which covers the months July -November 2010, the STEREO spacecraft were nearly 180 degrees apart, allowing for the uninterrupted tracking of the active region and its ensuing CMEs. The ejective aspect is examined from multi-viewpoint coronagraphic images, while the dynamics of the active region photospheric magnetic field are inspected by means of SDO/HMI data for specific subintervals of interest. The ultimate goal of this work in progress is to identify common patterns in the ejective aspect that can be connected with the active region characteristics. © International Astronomical Union 2017. SER info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17439213_v12_n_p60_Cremades
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Sun: Activity
Sun: Coronal mass ejections (CMEs)
Sun: Magnetic fields
Sun: Photosphere
spellingShingle Sun: Activity
Sun: Coronal mass ejections (CMEs)
Sun: Magnetic fields
Sun: Photosphere
Cremades, H.
Mandrini, C.H.
Fuentes, M.C.L.
Merenda, L.
Cabello, I.
López, F.M.
Poisson, M.
A long-duration active region: Evolution and quadrature observations of ejective events
topic_facet Sun: Activity
Sun: Coronal mass ejections (CMEs)
Sun: Magnetic fields
Sun: Photosphere
description Unknown aspects of the initiation, evolution, and associated phenomena of coronal mass ejections (CMEs), together with their capability of perturbing the fragile technological equilibrium on which nowadays society depends, turn them a compelling subject of study. While space weather forecasts are thus far not able to predict when and where in the Sun will the next CME take place, various CME triggering mechanisms have been proposed, without reaching consensus on which is the predominant one. To improve our knowledge in these respects, we investigate a long-duration active region throughout its life, from birth until decay along five solar rotations, in connection with its production of ejective events. We benefit from the wealth of solar remote-sensing data with improved temporal, spatial, and spectral resolution provided by the ground-breaking space missions STEREO, SDO, and SOHO. During the investigated time interval, which covers the months July -November 2010, the STEREO spacecraft were nearly 180 degrees apart, allowing for the uninterrupted tracking of the active region and its ensuing CMEs. The ejective aspect is examined from multi-viewpoint coronagraphic images, while the dynamics of the active region photospheric magnetic field are inspected by means of SDO/HMI data for specific subintervals of interest. The ultimate goal of this work in progress is to identify common patterns in the ejective aspect that can be connected with the active region characteristics. © International Astronomical Union 2017.
format SER
author Cremades, H.
Mandrini, C.H.
Fuentes, M.C.L.
Merenda, L.
Cabello, I.
López, F.M.
Poisson, M.
author_facet Cremades, H.
Mandrini, C.H.
Fuentes, M.C.L.
Merenda, L.
Cabello, I.
López, F.M.
Poisson, M.
author_sort Cremades, H.
title A long-duration active region: Evolution and quadrature observations of ejective events
title_short A long-duration active region: Evolution and quadrature observations of ejective events
title_full A long-duration active region: Evolution and quadrature observations of ejective events
title_fullStr A long-duration active region: Evolution and quadrature observations of ejective events
title_full_unstemmed A long-duration active region: Evolution and quadrature observations of ejective events
title_sort long-duration active region: evolution and quadrature observations of ejective events
url http://hdl.handle.net/20.500.12110/paper_17439213_v12_n_p60_Cremades
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