Results 61 to 70 of about 5,676 (305)

Rotational Flows in Solar Coronal Flux Rope Cavities

The Astrophysical Journal Letters, 2023
We present a 2.5D magnetohydrodynamic simulation of a systematically rotating prominence inside its coronal cavity using the open-source MPI-AMRVAC code.
Valeriia Liakh, Rony Keppens
doaj   +1 more source

2D non-LTE radiative modelling of He I spectral lines formed in solar prominences

, 2008
The diagnosis of new high-resolution spectropolarimetric observations of solar prominences made in the visible and near-infrared mainly, requires a radiative modelling taking into account for both multi-dimensional geometry and complex atomic models ...
Andretta, Anzer, Asensio Ramos, Benjamin, Benson, Berger, Casini, Centeno, F. Paletou, Fabiani Bendicho, Fernley, Fontenla, Gopalswamy, Gouttebroze, Gouttebroze, Gunár, Heasley, Heasley, Heasley, Heinzel, Heinzel, House, L. Léger, Labrosse, Labrosse, Labrosse, Landi Degl'Innocenti, Lin, Low, Léger, López Ariste, Mauas, Merenda, Paletou, Paletou, Paletou, Paletou, Paletou, Rybicki, Tobiska, Trujillo Bueno, Trujillo Bueno, Trujillo Bueno, Trujillo Bueno, Vial, Vial, Walhstrøm   +46 more
core   +3 more sources

Hot prominence spicules launched from turbulent cool solar prominences [PDF]

Astronomy & Astrophysics, 2019
A solar filament is a dense cool condensation that is supported and thermally insulated by magnetic fields in the rarefied hot corona. Its evolution and stability, leading to either an eruption or disappearance, depend on its coupling with the surrounding hot corona through a thin transition region, where the temperature steeply rises.
L. P. Chitta, H. Peter, L. Li
openaire   +3 more sources

Harmonizing the Pyrene and Ether Groups in Covalent Triazine Polymers for Highly Effective H2O2 Photosynthesis via One‐Step Two‐Electron Oxygen Reduction

Advanced Functional Materials, EarlyView.
The pyrene and ether groups are incorporated into the covalent triazine polymer (CTP) structure. The synergistic effect of the two functional groups endows CTP with better electron transfer, light absorption, and oxygen activation properties. An impressive apparent quantum yield (13.2% @420 nm) and a remarkable solar‐to‐chemical conversion efficiency ...
Chong Wang, Jinliang Lv, Yichun Lu, Hanfeng Ye, Xuan Zhang, Leonardo Cancellara, Nadezda Tarakina, Jiande Lin, Xin Gao, Oleksandr Savateev, Jiajia Cheng   +10 more
wiley   +1 more source

Structure and Dynamics of Erupting Solar Prominences Using the Rolling Hough Transform: Toward a Feature-oriented Classification

The Astrophysical Journal
The classification of solar prominences has proven to be challenging, due to their diverse morphologies and dynamical behavior. Complexity is heightened when considering eruptive prominences, where the dynamics demand methods capable of capturing ...
Harry Birch, Stéphane Régnier
doaj   +1 more source

Nonlinear Fast Magnetosonic Waves in Solar Prominence Pillars

The Astrophysical Journal, 2023
We investigate the properties of nonlinear fast magnetosonic (NFM) waves in a solar prominence, motivated by recent high-resolution and high-cadence Hinode/Solar Optical Telescope (SOT) observations of small-scale oscillations in a prominence pillar.
Leon Ofman, Therese A. Kucera, C. Richard DeVore   +2 more
doaj   +1 more source

He-D3 Polarization observed in Prominences

, 2004
Spectro-polarimetric measurements of the D3-HeI 5876 A line profile in 35 prominences have been performed in 2003 with the Gregory-Coud\'e Telescope in Locarno.
Bianda, Michele, Ramelli, Renzo
core   +1 more source

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting

Advanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini, Daniël Grosfeld, Bruno Branco, Guus J. W. Aalbers, Lana M. Kessels, Willemijn H. M. Remmerswaal, Nicolas Daub, Kunal Datta, Martijn M. Wienk, René A. J. Janssen   +9 more
wiley   +1 more source

A New Formation Mechanism of Counterstreaming Mass Flows in Filaments and the Doppler Bullseye Pattern in Prominences

The Astrophysical Journal
The eruption of a solar prominence can eject substantial mass and magnetic field into interplanetary space and cause geomagnetic storms. However, various questions about prominences and their eruption mechanism remain unclear.
Chengrui Zhou, Yuandeng Shen, Chun Xia, Dongxu Liu, Zehao Tang, Surui Yao   +5 more
doaj   +1 more source

Persistent Solar Prominences [PDF]

Nature, 1926
IN NATURE for July 24, page 131, reference is made to a large prominence formation on the sun's north-western limb on July 16. Apart from the interest in this display as to grandeur, consideration is enhanced by the fact of the many repeated appearances of this particular display.
openaire   +1 more source