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A study of a coronal hole associated with a large filament eruption

artículo científico
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A study of a coronal hole associated with a large filament eruption.pdf (3.386Mb)
Date
2017
Author
Gutiérrez Garro, Heidy
Taliashvili Enacolopas, Lela
Lazarian, Alexandre
Mouradian, Zadig
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Abstract
We report the results of a detailed study of an equatorial coronal hole and a dimming region related to the eruptions of a nearby large filament and subsequent coronal mass ejections (CMEs). The dynamic eruptions of the filament and the associated CMEs are probably related to the magnetic reconnection involving the magnetic field lines at the filament footpoints. During the starting processes of the filament eruption, we observed several newly emerged small magnetic flux concentrations close to the filament footpoints. Disturbance increase in the prominence body was observed during the pre-eruption processes. After the filament eruption, we observed evacuated filament material from the filament channel towards the coronal hole. Thus, all the region is perturbed and EUV loops and bright points are observed before and after the eruptions. Additionally, after the CME, we observed the disappearance of the dimming region and the coronal hole, followed by photospheric magnetic diffusion. We discussed a possible magnetic reconnection scenario and MHD waves involved during these processes.
URI
https://hdl.handle.net/10669/79302
External link to the item
10.1093/mnras/stx1866
https://academic.oup.com/mnras/article/471/4/4776/4004757
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  • Repositorios universitarios

  • Repositorio del SIBDI-UCR
  • Biblioteca Digital del CIICLA
  • Repositorio Documental Rafael Obregón Loría (CIHAC)
  • Biblioteca Digital Carlos Melendez (CIHAC)
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  • Colección de videos de UPA-VAS
  • Sitios recomendados

  • Buscador regional de LA Referencia
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  • Scientific Electronic Library Online (SciELO)
  • Directory of Open Access Journals (DOAJ)
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Repositorio Institucional de la Universidad de Costa Rica. Algunos derechos reservados. Este repositorio funciona con DSpace.