6533b873fe1ef96bd12d58a6
RESEARCH PRODUCT
Evidence of small-scale magnetic concentrations dragged by vortex motion of solar photospheric plasma
I. CabelloS. Vargas DomínguezV. DomingoLaura A. BalmacedaLaura A. BalmacedaJudith Palaciossubject
ConvectionProper motion:ASTRONOMÍA Y ASTROFÍSICA::Sistema solar [UNESCO]photosphere [Sun]FOS: Physical sciencesAstrophysicsUNESCO::ASTRONOMÍA Y ASTROFÍSICAConvectionMagnetogramAstrophysics::Solar and Stellar AstrophysicsSolar and Stellar Astrophysics (astro-ph.SR)PhysicsPhotosphereUNESCO::ASTRONOMÍA Y ASTROFÍSICA::Sistema solarConvection; Sun: granulation; Sun: photosphere; Magnetic fieldsAstronomy and AstrophysicsMagnetic fluxMagnetic fieldVortexAtmosphere of EarthAstrophysics - Solar and Stellar AstrophysicsSpace and Planetary ScienceMagnetic fieldsPhysics::Space PhysicsAstrophysics::Earth and Planetary Astrophysicsgranulation [Sun]:ASTRONOMÍA Y ASTROFÍSICA [UNESCO]description
Vortex-type motions have been measured by tracking bright points in high-resolution observations of the solar photosphere. These small-scale motions are thought to be determinant in the evolution of magnetic footpoints and their interaction with plasma and therefore likely to play a role in heating the upper solar atmosphere by twisting magnetic flux tubes. We report the observation of magnetic concentrations being dragged towards the center of a convective vortex motion in the solar photosphere from high-resolution ground-based and space-borne data. We describe this event by analyzing a series of images at different solar atmospheric layers. By computing horizontal proper motions, we detect a vortex whose center appears to be the draining point for the magnetic concentrations detected in magnetograms and well-correlated with the locations of bright points seen in G-band and CN images.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-04-07 |