Skip to main content
Article thumbnail
Location of Repository

Generation of quasi-periodic waves and flows in the solar atmosphere by oscillatory reconnection

By James McLaughlin, Gary Verth, Viktor Fedun and Robert Erdélyi

Abstract

We investigate the long-term evolution of an initially buoyant magnetic flux tube emerging into a gravitationally stratified coronal hole environment and report on the resulting oscillations and outflows. We perform 2.5-dimensional nonlinear numerical simulations, generalizing the models of McLaughlin et al. and Murray et al. We find that the physical mechanism of oscillatory reconnection naturally generates quasi-periodic vertical outflows, with a transverse/swaying aspect. The vertical outflows consist of both a periodic aspect and evidence of a positively directed flow. The speed of the vertical outflow (20-60 km/s) is comparable to those reported in the observational literature. We also perform a parametric study varying the magnetic strength of the buoyant flux tube and find a range of associated periodicities: 1.75-3.5 minutes. Thus, the mechanism of oscillatory reconnection may provide a physical explanation to some of the high-speed, quasi-periodic, transverse outflows/jets recently reported by a multitude of authors and instruments

Topics: F300, F500, G100
Publisher: IOP Publishing
Year: 2012
OAI identifier: oai:nrl.northumbria.ac.uk:6015

Suggested articles

Citations

  1. (2008). ApJ, accepted doi
  2. (2000). Magnetic Reconnection (Cambridge doi
  3. (2006). Turbulence, Waves & Instabilities in the Solar Plasma, (eds: Erd´

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.