Formation and evolution of an active region filament

Christoph Kuckein, Rebeca Centeno, Valentín Martínez Pillet

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Several scenarios explaining how filaments are formed can be found in literature. In this paper, we analyzed the observations of an active region filament and critically evaluated the observed properties in the context of current filament formation models. This study is based on multi-height spectropolarimetric observations. The inferred vector magnetic field has been extrapolated starting either from the photosphere or from the chromosphere. The line-of-sight motions of the filament, which was located near disk center, have been analyzed inferring the Doppler velocities. We conclude that a part of the magnetic structure emerged from below the photosphere.

Original languageEnglish
Title of host publicationNature of Prominences and their Role in Space Weather
PublisherCambridge University Press
Pages40-43
Number of pages4
EditionS300
ISBN (Print)9781107045194
DOIs
StatePublished - Jun 2013

Publication series

NameProceedings of the International Astronomical Union
NumberS300
Volume8
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221

Keywords

  • Prominences
  • Sun: chromospheres
  • Sun: filaments
  • Sun: magnetic fields
  • Sun: photosphere
  • Techniques: polarimetric

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