Solar Magnetoconvection and Small-Scale Dynamo
@article{Borrero2015SolarMA, title={Solar Magnetoconvection and Small-Scale Dynamo}, author={Juan Manuel Borrero and Sara Jafarzadeh and M. Sch{\"u}ssler and Sami K. Solanki}, journal={Space Science Reviews}, year={2015}, volume={210}, pages={275-316} }
A number of observational and theoretical aspects of solar magnetoconvection are considered in this review. We discuss recent developments in our understanding of the small-scale structure of the magnetic field on the solar surface and its interaction with convective flows, which is at the centre of current research. Topics range from plage areas in active regions over the magnetic network shaped by supergranulation to the ubiquituous ‘turbulent’ internetwork fields. On the theoretical side, we…
29 Citations
Linear Polarization Features in the Quiet-Sun Photosphere: Structure and Dynamics
- PhysicsSolar physics
- 2018
Detailed characteristics of linear polarization features (LPFs) in the quiet-Sun photosphere from high-resolution observations obtained with Sunrise/IMaX are presented and their sizes and polarization signals are found to be strongly dependent on the noise level and on the spatial resolution.
Photospheric magnetic topology of a north polar region
- PhysicsAstronomy & Astrophysics
- 2020
Aims. We aim to characterise the magnetism of a large fraction of the north polar region close to a maximum of activity, when the polar regions are reversing their dominant polarity.
Methods. We make…
Waves in the lower solar atmosphere: the dawn of next-generation solar telescopes
- PhysicsLiving Reviews in Solar Physics
- 2023
Waves and oscillations have been observed in the Sun’s atmosphere for over half a century. While such phenomena have readily been observed across the entire electromagnetic spectrum, spanning radio…
Cyclic Variations of Active Regions Violating the Hale’s Polarity Law in 1989–2020 and in the Synthetic Cycle
- PhysicsGeomagnetism and Aeronomy
- 2022
This study is devoted to the interplay between the global dynamo and small-scale dynamo and their mutual manifestations in the solar cycle. The cyclic variations of active regions violating the…
The Diffraction-Limited Near-Infrared Spectropolarimeter (DL-NIRSP) of the Daniel K. Inouye Solar Telescope (DKIST)
- Materials ScienceSolar Physics
- 2022
The Diffraction-Limited Near-Infrared Spectropolarimeter (DL-NIRSP) is one of the first-light instruments for the National Science Foundation’s Daniel K. Inouye Solar Telescope (DKIST). DL-NIRSP is…
Interaction of convective plasma and small-scale magnetic fields in the lower solar atmosphere
- PhysicsReviews of Modern Plasma Physics
- 2022
In the following short review we will outline some of the possible interaction processes of lower solar atmospheric plasma with the embedded small-scale solar magnetic fields. After introducing the…
Sparse nonlinear models of chaotic electroconvection
- PhysicsRoyal Society Open Science
- 2021
A reduced-order model is developed for chaotic electroconvection at high electric Rayleigh number using the sparse identification of nonlinear dynamics (SINDy) algorithm, constrained to preserve the symmetries observed in the original system.
Critical Science Plan for the Daniel K. Inouye Solar Telescope (DKIST)
- PhysicsSolar Physics
- 2021
The National Science Foundation’s Daniel K. Inouye Solar Telescope (DKIST) will revolutionize our ability to measure, understand, and model the basic physical processes that control the structure and…
The Dimmest State of the Sun
- PhysicsGeophysical Research Letters
- 2020
How the solar electromagnetic energy entering the Earth's atmosphere varied since preindustrial times is an important consideration in the climate change debate. Detrimental to this debate, estimates…
How faculae and network relate to sunspots, and the implications for solar and stellar brightness variations(Corrigendum)
- PhysicsAstronomy & Astrophysics
- 2020
Context. How global faculae and network coverage relates to that of sunspots is relevant to the brightness variations of the Sun and Sun-like stars.
Aims. We aim to extend and improve on earlier…
References
SHOWING 1-10 OF 304 REFERENCES
Structure of Plage Flux Tubes from the Inversion of Stokes Spectra. I. Spatially Averaged Stokes I and V Profiles
- Physics
- 2000
We present results of the inversion of spatially averaged Stokes I and V profiles emerging from plage regions near disk center. The observations analyzed in this work were recorded with the Advanced…
Inferring the magnetic field vector in the quiet Sun - I. Photon noise and selection criteria
- Physics
- 2010
In the past, spectropolarimetric data from Hinode/SP were employed to infer the distribution of the magnetic field vector in the quiet Sun. While some authors found predominantly horizontal magnetic…
Comparison of the thin flux tube approximation with 3D MHD simulations
- Physics
- 2009
Context. The structure and dynamics of small vertical photospheric magnetic flux concentrations has been often treated in the framework of an approximation based upon a low-order truncation of the…
Solar Cycle Variations of the Second Solar Spectrum
- Physics
- 2014
The average strength of the spatially unresolved turbulent magnetic field in the Sun’s photosphere can be measured with the Hanle e ffect. The possible variations of this average value over time…
Pressure equilibrium and energy balance of small photospheric fluxtubes
- Physics
- 1976
Field configurations and temperature distributions of axially symmetric fluxtubes are determined on the basis of pressure equilibrium and energy balance of the tubes. The description concentrates on…
The 1-meter Swedish solar telescope
- PhysicsSPIE Astronomical Telescopes + Instrumentation
- 2003
We describe the 1-meter Swedish solar telescope which replaces the former 50-cm solar telescope (SVST) in La Palma. The un-obscured optics consists of a singlet lens used as vacuum window and two…
THE DISTRIBUTION OF QUIET-SUN MAGNETIC FIELDS AT DIFFERENT HELIOCENTRIC ANGLES
- Physics, Geology
- 2012
This paper presents results from the analysis of high signal-to-noise ratio spectropolarimetric data taken at four heliocentric angles in quiet-Sun internetwork regions with the Hinode satellite.…
Solar Surface Magneto-Convection
- Physics
- 2002
We review the properties of solar magneto-convection in the top half of the convection zones scale heights (from 20 Mm below the visible surface to the surface, and then through the photosphere to…
internetwork spectro-polarimetry at different heliocentric angles
- Physics
- 2008
Aims. The analysis of near infrared spectropolarimetric data at the internetwork in different regions on the solar surface could offer constraints that reject current modeling of these quiet areas.…