Results 41 to 50 of about 1,545,217 (255)

Heating and dynamics of the Solar atmosphere

open access: yesCoRR, 2023
The solar atmosphere shows anomalous variation in temperature, starting from the 5500 K photosphere to the million-degree Kelvin corona. The corona itself expands into the interstellar medium as the free streaming solar wind, which modulates and impacts the near-Earth space weather.
openaire   +2 more sources

Vortex Motions in the Solar Atmosphere

open access: yesSpace Science Reviews, 2023
sponsorship: Open access funding provided by HEAL-Link Greece. (HEAL-Link Greece)
Tziotziou, K.   +14 more
openaire   +3 more sources

The magnetic field in the solar atmosphere [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2014
This publication provides an overview of magnetic fields in the solar atmosphere with the focus lying on the corona. The solar magnetic field couples the solar interior with the visible surface of the Sun and with its atmosphere. It is also responsible for all solar activity in its numerous manifestations.
Wiegelmann, T.   +2 more
openaire   +3 more sources

Properties of Flare-imminent versus Flare-quiet Active Regions from the Chromosphere through the Corona. I. Introduction of the AIA Active Region Patches (AARPs)

open access: yesThe Astrophysical Journal, 2023
We begin here a series of papers examining the chromospheric and coronal properties of solar active regions. This first paper describes an extensive data set of images from the Atmospheric Imaging Assembly on the Solar Dynamics Observatory curated for ...
Karin Dissauer   +2 more
doaj   +1 more source

Numerical Simulations of Magnetoacoustic–Gravity Waves in the Solar Atmosphere [PDF]

open access: yes, 2012
We investigate the excitation of magnetoacoustic–gravity waves generated from localized pulses in the gas pressure as well as in the vertical component of velocity.
R. Oliver   +7 more
core   +1 more source

The Minute Structure of the Solar Atmosphere [PDF]

open access: yesProceedings of the National Academy of Sciences, 1916
During a total eclipse of the sun, when the light of the disk is completely cut off by the moon, the solar atmosphere is momentarily revealed. The exceedingly faint corona, extending millions of miles into space, can be seen only at such times. But the more brilliant chromosphere, the comparatively shallow atmosphere of luminous gases which completely ...
G E, Hale, F, Ellerman
openaire   +2 more sources

Structures in the Outer Solar Atmosphere [PDF]

open access: yesSpace Science Reviews, 2014
The structure and dynamics of the outer solar atmosphere are reviewed with emphasis on the role played by the magnetic field. Contemporary observations that focus on high resolution imaging over a range of temperatures, as well as UV, EUV and hard X-ray spectroscopy, demonstrate the presence of a vast range of temporal and spatial scales, mass motions,
Fletcher, Lyndsay   +3 more
openaire   +2 more sources

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Existence of Purely Alvén Waves in Magnetic Flux Tubes with Arbitrary Cross-Sections

open access: yesPhysics, 2022
We study linear torsional Alfvén waves in a magnetic flux tube with an arbitrary cross-section. We assume that the equilibrium magnetic field is propagating in the z-direction in Cartesian coordinates x,y, and z.
Michael S. Ruderman   +1 more
doaj   +1 more source

Effects of a mid-latitude solar eclipse on the thermosphere and ionosphere - A modelling study [PDF]

open access: yes, 1998
A modelling study is presented which investigates in-situ generated changes of the thermosphere and ionosphere during a solar eclipse. Neutral temperatures are expected to drop by up to 40 degrees K at 240 km height in the totality footprint, with ...
Aylward, A. D.   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy