Results 31 to 40 of about 1,272,533 (187)
A New Feature of the Quiet Sun Corona During Solar Minimum. [PDF]
, 2014 Quiet Sun (QS) loops have received much less attention than active region loops, partly due to the relative difficulty in identifying individual QS loop structures.
Huang, Zhenguang
core +6 more sources
Time-dependent Dynamics of the Corona
The Astrophysical Journal Letters, 2023 We present in this Letter the first global comparison between traditional line-tied steady-state magnetohydrodynamic models and a new, fully time-dependent thermodynamic magnetohydrodynamic simulation of the global corona. To approximate surface magnetic
Emily I. Mason +5 more
doaj +1 more source
Seismological demonstration of perpendicular density structuring in the solar corona [PDF]
, 2008 The peculiarities of the propagating transverse waves observed in the solar corona with the CoronalMulti-channel Polarimeter (CoMP)indicate the existence of fine field structuring in the coronal density.
V. M. Nakariakov +7 more
core +1 more source
Observations of Circularly Polarized Radio Emission from the “Quiet” Sun at Frequencies <100 MHz
The Astrophysical JournalThe presence of the magnetic field makes the solar coronal medium birefringent. Research indicates that an appreciable degree of circular polarization (DCP) can be observed in the thermal radio emission at frequencies
Shaik Sayuf +5 more
doaj +1 more source
Role of Small-scale Impulsive Events in Heating the X-Ray Bright Points of the Quiet Sun
The Astrophysical Journal, 2023 Small-scale impulsive events, known as nanoflares, are thought to be one of the prime candidates that can keep the solar corona hot at its multimillion-Kelvin temperature.
Biswajit Mondal +8 more
doaj +1 more source
Ion Temperatures in the Quiet Solar Corona
The Astrophysical Journal, 2007 We measure the upper and lower limits of the temperatures Ti for a number of ions observed in the quiescent solar corona from 1996 to 2000, in order to compare with the measured electron temperature Te and test the assumption Ti = Te commonly adopted to measure the plasma nonthermal velocity vnth.
openaire +1 more source
Relative Elemental Abundances of the Quiet Solar Corona as Determined by SERTS [PDF]
The Astrophysical Journal, 1997 Intensities of extreme-ultraviolet (EUV) spectral lines were measured as a function of radius off the solar limb by two flights (1989 May 5 and 1991 May 7) of the Solar Extreme-ultraviolet Rocket Telescope and Spectrograph (SERTS) for three quiet solar regions. The line-ratio density, line-ratio temperature, and emission measure were determined.
D. A. Falconer +2 more
openaire +1 more source
SPE Polymers, Volume 7, Issue 4, October 2026.Hybridization of kenaf and banana fibres in aerospace and automobile applications. ABSTRACT Natural fiber reinforced polymer composites have been extensively studied as a result of the automotive and aerospace industries' need for lightweight, durable materials and the growing environmental concerns surrounding the production of synthetic fibers.
Ayodele Abraham Ajayi +1 more
wiley +1 more source
Small scale energy release driven by supergranular flows on the quiet Sun [PDF]
, 2007 In this article we present data and modelling for the quiet Sun that strongly suggest a ubiquitous small-scale atmospheric heating mechanism that is driven solely by converging supergranular flows. A possible energy source for such events is the power
Diver, D., Potts, H.E., Khan, J.
core +1 more source
Hinode/EIS Observation of the Alfvénic Fluctuations in the Quiet Sun
The Astrophysical JournalAlfvénic fluctuations in the corona are regularly observed in EUV imaging and infrared spectroscopic data. We report here on the Doppler velocity fluctuations within the data from the Extreme-Ultraviolet Imaging Spectrometer (EIS) on board Hinode.
Edris Tajfirouze +2 more
doaj +1 more source