Results 91 to 100 of about 1,455,996 (195)

On the Intermittency of Hot Plasma Loops in the Solar Corona

The Astrophysical Journal
A recent analysis has suggested that the heating of plasma loops in the solar corona depends not just on the Poynting flux but also on processes yet to be identified.
Philip G. Judge, N. Paul M. Kuin
doaj   +1 more source

Ubiquitous Small-scale Extreme-ultraviolet Upflow-like Events above Network Regions Observed by the Solar Orbiter/Extreme Ultraviolet Imager

The Astrophysical Journal
Universal small-scale solar activity in the quiet region is suggested to be a potential source of solar wind and the upper solar atmosphere. Here, with the high-resolution 174 Å imaging observations from the Solar Orbiter/Extreme Ultraviolet Imager, we ...
Yadan Duan, Hechao Chen, Zhenyong Hou, Zheng Sun, Yuandeng Shen   +4 more
doaj   +1 more source

Constraints on Acoustic Wave Energy Fluxes and Radiative Losses in the Solar Chromosphere from Non-LTE Inversions

The Astrophysical Journal
Accurately assessing the balance between acoustic wave energy fluxes and radiative losses is critical for understanding how the solar chromosphere is thermally regulated.
J. M. da Silva Santos, M. Molnar, I. Milić, M. Rempel, K. Reardon, J. de la Cruz Rodríguez   +5 more
doaj   +1 more source

Effect of structuring on coronal loop oscillations [PDF]

, 2007
In this Thesis the theoretical understanding of oscillations in coronal structures is developed. In particular, coronal loops are modelled as magnetic slabs of plasma.
McEwan, Michael P.
core   +1 more source

Constraining magnetic heating in the solar chromosphere

, 2022
The chromospheric and coronal heating problems remain one of the foremost open questions in solar and stellar physics: how are the outer layers of the Sun heated from a few thousand kelvin in the photosphere to the million-degree corona? Radiation alone is not capable of transporting the required energy to explain observations from the inner layers ...
openaire   +1 more source

Energy Transport and Heating by Nonthermal Electrons in a Turbulent Solar Flare Environment

The Astrophysical Journal
The impulsive phase of a solar flare is known to generate strong turbulence and to transfer magnetic energy into accelerated electrons. Recognizing the importance of angular diffusion on the dynamics of the accelerated electrons, we extend previous ...
A. Gordon Emslie, Eduard P. Kontar
doaj   +1 more source

Performance of a building integrated collector for solar heating and radiant cooling [PDF]

, 2011
Due to their limited temperature range, unglazed solar collectors have long been relegated to providing low cost heating in applications such as swimming pool heating systems.
Carson, James K., Anderson, TN, Carson, JK, Duke, Mike, Anderson, Timothy Nicholas, Duke, M   +5 more
core  

Chromospheric condensation and heating in small-scale flaring events: Insights from GREGOR/GRIS and coordinated IRIS observations

Astronomy & Astrophysics
We present a detailed analysis of the chromospheric response during a small-scale flaring event observed in the active region NOAA 13394 on 8 August 2023.
Ferrente F., Guglielmino S. L., Romano P., Spadaro D., Murabito M., Contarino L., Andretta V., Ermolli I., González Manrique S. J., Kuckein C., Sasso C., Lezzi S. M.   +11 more
doaj   +1 more source

The FIP and Inverse FIP Effects in Solar and Stellar Coronae

Living Reviews in Solar Physics, 2015
We review our state of knowledge of coronal element abundance anomalies in the Sun and stars. We concentrate on the first ionization potential (FIP) effect observed in the solar corona and slow-speed wind, and in the coronae of solar-like dwarf stars ...
J. Martin Laming
doaj   +1 more source

Current sheets in the solar corona : formation, fragmentation and heating [PDF]

, 2011
In this thesis we investigate current sheets in the solar corona. The well known 1D model for the tearing mode instability is presented, before progressing to 2D where we introduce a non-uniform resistivity.
Bowness, Ruth
core   +2 more sources