Dynamos: from an astrophysical model to laboratory experiments

DD Sokoloff, RA Stepanov, PG Frick - Physics-Uspekhi, 2014 - iopscience.iop.org
Magnetic field generation and evolution in celestial bodies—the subject matter of the theory
of the dynamo—held Ya B Zeldovich's interest for years. Over the time since then, the study …

Динамо: на пути от астрофизических моделей к лабораторному эксперименту

ДД Соколов, РА Степанов, ПГ Фрик - Успехи физических наук, 2014 - ufn.ru
Вопрос о возникновении и последующей эволюции магнитных полей небесных тел,
составляющий предмет теории динамо, интересовал ЯБ Зельдовича многие годы. За …

Current helicity of active regions as a tracer of large-scale solar magnetic helicity

H Zhang, D Moss, N Kleeorin, K Kuzanyan… - The Astrophysical …, 2012 - iopscience.iop.org
We demonstrate that the current helicity observed in solar active regions traces the magnetic
helicity of the large-scale dynamo generated field. We use an advanced two-dimensional …

Problems of magnetic dynamo

DD Sokoloff - Physics-Uspekhi, 2015 - iopscience.iop.org
In what is famously known as the solar activity cycle, every $11\{\text {years}} $ a wave from
a quasistationary magnetic field propagates in the solar convective zone from the middle …

Large-scale magnetic helicity fluxes estimated from MDI magnetic synoptic charts over the solar cycle 23

S Yang, H Zhang - The Astrophysical Journal, 2012 - iopscience.iop.org
To investigate the characteristics of large-scale and long-term evolution of magnetic helicity
with solar cycles, we use the method of Local Correlation Tracking to estimate the magnetic …

The origin of the helicity hemispheric sign rule reversals in the mean-field solar-type dynamo

VV Pipin, H Zhang, DD Sokoloff… - Monthly Notices of …, 2013 - academic.oup.com
Observations of proxies of the magnetic helicity in the Sun over the past two solar cycles
revealed reversals of the helicity hemispheric sign rule (negative in the North and positive in …

[图书][B] Solar Magnetism

H Zhang - 2023 - Springer
Solar physics is a fundamental branch of astrophysics, which has a long history. People
have noticed the activity of the sun for a long time. For example, as early as 3000 years ago …

Observations of Magnetic Helicity Proxies in the Solar Photosphere: Helicity With Solar Cycles

H Zhang, S Yang, H Xu, X Yang… - Helicities in …, 2023 - Wiley Online Library
Observations of magnetic helicity transportation through the solar photosphere reflect the
interaction of turbulent plasma movements and magnetic fields in the solar dynamo process …

Reversal magnetic chirality of solar active regions and a possible dynamo model

H Zhang - Monthly Notices of the Royal Astronomical Society, 2012 - academic.oup.com
The transfer of magnetic chirality in solar active regions is related to the emerging magnetic
flux ropes generated in the subatmosphere. This analysis has been presented based on the …

Large-scale soft X-ray loops and their magnetic chirality in both hemispheres

H Zhang, S Yang, Y Gao, J Su… - The Astrophysical …, 2010 - iopscience.iop.org
The magnetic chirality in the solar atmosphere has been studied based on soft X-ray and
magnetic field observations. It is found that some of the large-scale twisted soft X-ray loop …