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Recently, we correlated the inferred structure of the solar chromospheric plasma topography with solar wind velocity and composition data measured at 1AU. We now offer a physical justification of these relationships and present initial…

Astrophysics · Physics 2011-02-11 Robert J. Leamon , Scott W. McIntosh

The holographic principle states that the information about a volume of a system is encoded on the boundary surface of the volume. Holography appears in many branches of physics, such as optics, electromagnetism, many-body physics, quantum…

Quantum Physics · Physics 2014-11-25 Bo-Bo Wei , Zhan-Feng Jiang , Ren-Bao Liu

The surface granularity of small Solar System bodies is diverse through the different types of planetary bodies and even for specific objects it is often not known in detail. One of the physical properties that strongly depends on the…

Earth and Planetary Astrophysics · Physics 2021-09-29 D. Bischoff , B. Gundlach , J. Blum

The next decade will be an exciting period for solar astrophysics, as new ground- and space-based instrumentation will provide unprecedented observations of the solar atmosphere and heliosphere. The synergy between modeling effort and…

Instrumentation and Methods for Astrophysics · Physics 2021-01-11 Serena Criscuoli , Maria Kazachenko , Irina Kitashvili , Alexander Kosovichev , Valentín Martínez Pillet , Gelu Nita , Viacheslav Sadykov , Alan Wray

An analysis of discrete systems is important for understanding of various physical processes, such as excitations in crystal lattices and molecular chains, the light propagation in waveguide arrays, and the dynamics of Bose-condensate…

Pattern Formation and Solitons · Physics 2019-08-06 E. N. Tsoy , B. A. Umarov

Modeling galaxy formation in a cosmological context presents one of the greatest challenges in astrophysics today, due to the vast range of scales and numerous physical processes involved. Here we review the current status of models that…

Astrophysics of Galaxies · Physics 2015-09-23 Rachel S. Somerville , Romeel Davé

Coronal holes and active regions are typical magnetic structures found in the solar atmosphere. We propose several magnetohydrostatic equilibrium solutions that are representative of these structures in two dimensions. Our models include…

Solar and Stellar Astrophysics · Physics 2022-12-15 J. Terradas , R. Soler , R. Oliver , P. Antolin , I. Arregui , M. Luna , I. Piantschitsch , E. Soubrié , J. L. , Ballester

In meteorology the analysis of motions of the atmosphere on the Earth has been done using various mathematical models and using various approximations. In this article as the simplest model the compressible Euler equations with barotropic…

Analysis of PDEs · Mathematics 2023-02-21 Tetu Makino

Observations and models of solar prominences are reviewed. We focus on non-eruptive prominences, and describe recent progress in four areas of prominence research: (1) magnetic structure deduced from observations and models, (2) the…

Solar and Stellar Astrophysics · Physics 2015-05-14 D. H. Mackay , J. T. Karpen , J. L. Ballester , B. Schmieder , G. Aulanier

We study how the classical tests of general relativity are modified by the presence of a subdominant dark matter halo in the solar system. We use a general formalism to calculate the corrected expression for the relevant parameters, and…

General Relativity and Quantum Cosmology · Physics 2012-07-26 Giuseppe De Risi , Tiberiu Harko , Francisco S. N. Lobo

We present a theoretical model of the near-surface shear layer (NSSL) of the Sun. Convection cells deeper down are affected by the Sun's rotation, but this is not the case in a layer just below the solar surface due to the smallness of the…

Solar and Stellar Astrophysics · Physics 2024-12-25 Arnab Rai Choudhuri , Bibhuti Kumar Jha

In our work, we have proposed the arcade structures as minimum dissipative relaxed states (including both the viscous and resistive channels) pertaining to a two-fluid description of the plasma. The obtained relaxed state is non force-free…

Plasma Physics · Physics 2007-05-23 R. Bhattacharya , M. S. Janaki , B. Dasgupta , G. P. Zank

It is known that homogeneous distribution of particles in Coulomb-like systems can be unstable, and spatially inhomogeneous structures can be formed. A simple method for describing such inhomogeneous systems and obtaining spacial…

Statistical Mechanics · Physics 2015-06-16 B. I. Lev , V. P. Ostroukh , V. B. Tymchyshyn , A. G. Zagorodny

Some features of hydro- and thermodynamics, as applied to atmospheres and to stellar structures, are puzzling: 1. The suggestion, first made by Laplace, that our atmosphere has an adiabatic temperature distribution, is confirmed for the…

Fluid Dynamics · Physics 2008-05-30 Christian Fronsdal

We introduce a new, non-parametric method for estimating the mass enclosed within a sphere of arbitrary radius centered on the Sun. The method is based on the divergence theorem as applied to measurements of the line-of-sight accelerations…

Astrophysics of Galaxies · Physics 2026-02-05 Thomas Donlon , Lawrence M. Widrow , Sukanya Chakrabarti

The principles of creation of the mechanics of structured particles in the frame of the Newton's laws are considered. The explanation how this mechanics leads to the account of dissipative forces is offered. Why the motions of the system…

General Physics · Physics 2012-05-14 V. M. Somsikov

Using the stellar photometry catalogue based on the latest data release (DR4) of the Sloan Digital Sky Survey (SDSS), a study of the Galactic structure using star counts is carried out for selected areas of the sky. The sample areas are…

Astrophysics · Physics 2009-11-11 Y. Xu , L. C. Deng , J. Y. Hu

Precise numerical standard solar models (SSMs) now agree with one another and with helioseismological observations in the convective and outer radiative zones. Nevertheless these models obscure how luminosity, neutrino production and g-mode…

Astrophysics · Physics 2009-10-28 Sidney A. Bludman , Dallas C. Kennedy

For densities beyond nuclear saturation, there is still a large uncertainty in the equations of state (EoS) of dense matter that translate into uncertainties in the internal structure of neutron stars. The MUSES Calculation Engine provides…

Nuclear Theory · Physics 2025-05-22 Mateus Pelicer , Veronica Dexheimer , Joaquin Grefa

The large-scale structure of the magnetic field in the solar corona provides the energy to power large-scale solar eruptive events. Our physical understanding of this structure, and hence our ability to predict these events, is limited by…

Solar and Stellar Astrophysics · Physics 2015-08-06 R. T. James McAteer