Results 41 to 50 of about 1,246,535 (274)

Standing oscillations in a resonant sunspot atmosphere captured by integral field spectroscopy

open access: yesFrontiers in Astronomy and Space Sciences
The solar atmosphere is replete with magnetohydrodynamic wave activity, with magnetic structures such as sunspots and pores able to channel wave energy flux efficiently into the outer atmosphere. Steep density and temperature gradients at the base of the
Glen Chambers   +12 more
doaj   +1 more source

A Statistical Study of Short-period Decayless Oscillations of Coronal Loops in an Active Region

open access: yesThe Astrophysical Journal, 2023
Coronal loop oscillations are common phenomena in the solar corona, which are often classified as decaying and decayless oscillations. Using the high-resolution observation measured by the Extreme Ultraviolet Imager (EUI) on board the Solar Orbiter, we ...
Dong Li, David M. Long
doaj   +1 more source

Solar neutrino oscillation phenomenology [PDF]

open access: yesPramana, 2004
This article summarises the status of the solar neutrino oscillation phenomenology at the end of 2002 in the light of the SNO and KamLAND results. We first present the allowed areas obtained from global solar analysis and demonstrate the preference of the solar data towards the Large-Mixing-Angle (LMA) MSW solution. A clear confirmation in favor of the
openaire   +2 more sources

Physics of solar-like oscillations [PDF]

open access: yesSolar Physics, 2004
AbstractThe physics of solar and stellar oscillations determine their observable characteristics. I provide a brief overview of the properties of solar-like oscillations, excited by stochastic processes, in other stars. In addition, I consider the current state of investigations of such oscillations, as well as the prospects for an improved ...
openaire   +1 more source

Method for Simulating Solar Panel Oscillations Considering Thermal Shock

open access: yesComputation
The purpose of this work is to develop an approximate method for simulating the oscillations of a solar panel with consideration of thermal shock, based on a simulated spacecraft system model.
Andrey V. Sedelnikov   +1 more
doaj   +1 more source

Solar Oscillations and Convection. I. Formalism for Radial Oscillations [PDF]

open access: yesThe Astrophysical Journal, 2001
13 pages, 3 ...
Nordlund, Åke, Stein, R.F.
openaire   +2 more sources

Dissipative Instability of Magnetohydrodynamic Sausage Waves in a Compressional Cylindrical Plasma: Effect of Flow Shear and Viscosity Shear

open access: yesThe Astrophysical Journal, 2023
The shear flow influences the stability of magnetohydrodynamic (MHD) waves. In the presence of a dissipation mechanism, flow shear may induce an MHD wave instability below the threshold of the Kelvin–Helmholtz instability, which is called dissipative ...
D. J. Yu
doaj   +1 more source

SOLAR NEUTRINO OSCILLATION – AN OVERVIEW [PDF]

open access: yesPASCOS 2004, 2005
After a brief summary of the neutrino oscillation formalism and the solar neutrino sources and experiments I discuss the matter effect on solar neutrino oscillation. Then I discuss how the resulting alternative solutions are experimentally resolved in favour of the LMA solution, with particular exphasis on the SK, SNO and KL data.
openaire   +2 more sources

Solar Oscillations and Convection. II. Excitation of Radial Oscillations [PDF]

open access: yesThe Astrophysical Journal, 2001
Solar p-mode oscillations are excited by the work of stochastic, non-adiabatic, pressure fluctuations on the compressive modes. We evaluate the expression for the radial mode excitation rate derived by Nordlund and Stein (Paper I) using numerical simulations of near surface solar convection.
Stein, R.F., Nordlund, Åke
openaire   +2 more sources

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

open access: yesAdvanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

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