Results 21 to 30 of about 21,504 (309)

Interactions between solar neutrinos and solar magnetic fields [PDF]

Astroparticle Physics, 1997
17 pages, (+ 5 ps figs + aasms4.sty attached, uuencoded) Submitted to ...
Oakley, D. S., Snodgrass, Herschel B.
openaire   +2 more sources

Acoustic wave propagation in the solar sub-photosphere with localised magnetic field concentration: effect of magnetic tension [PDF]

, 2009
Aims: We analyse numerically the propagation and dispersion of acoustic waves in the solar-like sub-photosphere with localised non-uniform magnetic field concentrations, mimicking sunspots with various representative magnetic field configurations ...
Shelyag, S., Thompson, Michael John, Zharkov, Sergei, Zharkov, S., M. J. Thompson, Fedun, V., S. Zharkov, Shelyag, Sergiy, Erdélyi, Robert, Erdelyi, R., R. Erdélyi, S. Shelyag, V. Fedun, Thompson, M.J., Fedun, Viktor   +14 more
core   +1 more source

Radiative Magnetohydrodynamic Simulation of the Confined Eruption of a Magnetic Flux Rope: Unveiling the Driving and Constraining Forces

The Astrophysical Journal, 2023
We analyze the forces that control the dynamic evolution of a flux rope eruption in a three-dimensional radiative magnetohydrodynamic simulation. The confined eruption of the flux rope gives rise to a C8.5 flare. The flux rope rises slowly with an almost
Can Wang, Feng Chen, Mingde Ding, Zekun Lu   +3 more
doaj   +1 more source

Solar magnetic fields

Journal of Astrophysics and Astronomy, 1994
ISSN:0973 ...
openaire   +2 more sources

MESOGRANULATION AND THE SOLAR SURFACE MAGNETIC FIELD DISTRIBUTION [PDF]

The Astrophysical Journal, 2011
The relation of the solar surface magnetic field with mesogranular cells is studied using high spatial (~ 100 km) and temporal (~ 30 sec) resolution data obtained with the IMaX instrument aboard SUNRISE. First, mesogranular cells are identified using Lagrange tracers (corks) based on horizontal velocity fields obtained through Local Correlation ...
Yelles Chaouche, L., Moreno-Insertis, F., Martínez Pillet, V., Wiegelmann, T., Bonet, J., Knölker, M., Bellot Rubio, L., del Toro Iniesta, J., Barthol, P., Gandorfer, A., Schmidt, W., Solanki, S.   +11 more
openaire   +3 more sources

Formation of magnetic flux tubes in cylindrical wedge geometry [PDF]

, 2012
Three-dimensional (3D) MHD numerical simulations have not been able to demonstrate convincingly the spontaneous formation of large vertical flux tubes.
Hurlburt, Neal, Botha, G.J.J., Hurlburt, N. E., Botha, Gert, Rucklidge, A.M., Rucklidge, A. M., Botha, G. J. J., Hurlburt, N.E., Rucklidge, Alistair   +8 more
core   +1 more source

Heartbeat of the sun from principal component analysis and prediction of solar activity on a millenium timescale [PDF]

, 2015
We derive two principal components (PCs) of temporal magnetic field variations over the solar cycles 21-24 from full disk magnetograms covering about 39% of data variance, with σ = 0.67. These PCs are attributed to two main magnetic waves travelling from
Shepherd, Simon J., Zharkov, Sergei I., Zharkova, V. V., Zharkov, Sergei, Popova, E., Shepherd, S. J., Zharkova, Valentina, Shepherd, Simon, Zharkov, S. I., Popova, Elena, Zharkova, Valentina V.   +10 more
core   +1 more source

Fractality of Magnetic Helicity Distribution in the Solar Corona

The Astrophysical Journal
We find a universal power-law scaling of magnetic helicity distribution in the solar corona. Magnetic helicity is a dynamical invariant for ideal magnetohydrodynamics (MHD) and characterizes complex magnetic field structure by measuring the degree of ...
Anda Xiong, Shangbin Yang, Quan Wang, Xin Liu   +3 more
doaj   +1 more source

Which Component of Solar Magnetic Field Drives the Evolution of Interplanetary Magnetic Field over the Solar Cycle?

The Astrophysical Journal, 2023
The solar magnetic structure changes over the solar cycle. It has a dipole structure during solar minimum, where the open flux extends mainly from the polar regions into the interplanetary space.
Minami Yoshida, Toshifumi Shimizu, Shin Toriumi   +2 more
doaj   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source