Results 91 to 100 of about 4,310 (287)

Development of Torus and Kink Instabilities in Eruptive Prominences

The Astrophysical Journal
Several filament eruptions with pronounced writhing of the axis of the structure are analyzed. Initially, smooth arches of eruptive filaments are transformed into large-scale helical structures with at least one complete turn due to the development of ...
Boris Filippov
doaj   +1 more source

Automatic detection of solar filaments

, 2020
Dissertação de Mestrado em Astrofísica e Instrumentação para o Espaço apresentada à Faculdade de Ciências e TecnologiaO objectivo deste trabalho foi construir um algoritmo com a finalidade de detetar automaticamente a presença de filamentos solares nas ...
Vasconcelos, Ana Sofia Roriz de
core  

Three‐Step Synthesis Toward Fluorene‐Based Non‐Fused‐Ring Acceptors for Organic Solar Cells

Chemistry – A European Journal, EarlyView.
Applying a simple three step synthesis strategy leads to two fluorene‐based non‐fused‐ring electron acceptors, FHM‐Cl and FHM‐F for organic solar cells. The chlorinated variant delivers markedly higher efficiency due to broader light harvesting and favorable molecular packing, resulting in improved charge transport and reduced recombination losses ...
Virginia Lafranconi, Suman Mallick, Lisa Nauta, Lisa Inzko, Julia Hönigsberger, Danijel Babic, Bettina Schlemmer, Daniele Padula, Heinz Amenitsch, Thomas Rath, Gregor Trimmel   +10 more
wiley   +1 more source

Relating near-Earth observations of an interplanetary coronal mass ejection to the conditions at its site of origin in the solar corona

, 2005
A halo coronal mass ejection (CME) was detected on January 20, 2004. We use solar remote sensing data (SOHO, Culgoora) and near-Earth in situ data (Cluster) to identify the CME source event and show that it was a long duration flare in which a magnetic ...
Fazakerley, AN, Fazakerley, Andrew N., Culhane, J. Leonard, Mazelle, C., Balogh, A., Matthews, SA, van Driel-Gesztelyi, Lidia, Lucek, E., Reme, H, Owen, Chris J., Harra, LK, Harra, Louise K., Owen, CJ, Lucek, E, van Driel-Gesztelyi, L, Balogh, A, Culhane, JL, Matthews, Sarah A., Mazelle, C, Reme, H.   +19 more
core  

Striation and convection in penumbral filaments [PDF]

, 2010
Observations with the 1-m Swedish Solar Telescope of the flows seen in penumbral filaments are presented. Time sequences of bright filaments show overturning motions strikingly similar to those seen along the walls of small isolated structures in the ...
H. C. Spruit, Scharmer, G., Löfdahl, M.G., Spruit, H., Löfdahl, Mats G.,, Spruit, H. C., Scharmer, Göran B.,, Spruit, H.C., G. B. Scharmer, M. G. Löfdahl, Scharmer, G.B., Löfdahl, M.   +11 more
core   +1 more source

Efficient methods for detection of SiC and Si3N4 precipitates and filaments in multi-crystalline silicon wafers and solar cells

, 2022
S.1380-1383Two easy and efficient methods are demonstrated to detect SiC and Si3N4 filaments and precipitates in multi-crystalline silicon (mc-Si) wafers and solar cells by Optical Light (OLM) Microscopy and Scanning Electron Microscopy (SEM).
Bakowskie, R., Eiternick, S., Lausch, D., Petter, K., Müller, G.   +4 more
core   +1 more source

Solar Fuels Via Methane Valorization: Thermochemical Pathways, Unified Metrics, and Techno‐Economic Perspectives

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez, Amjad Othman, Majid Linjawi, Amro Al‐Qutub   +3 more
wiley   +1 more source

Dynamics of An Erupting Filament and a Coronal Loop during Their Interaction

The Astrophysical Journal
Although interactions between filaments and other atmospheric structures are frequently observed, detailed studies on how these interactions affect the dynamics of the involved structures remain scarce.
Yue Fang, Jun Zhang, Chen Xing, Jinhan Guo   +3 more
doaj   +1 more source

Dynamics of solar eruptive filaments

, 2008
The solar filament is one of the most important structures that lead to the destabilization of the solar corona, thereby driving the space weather in the Earth space.
Liu, Rui
core  

Filaments and the magnetic configuration

, 2011
Context. The emission of Ca and Hα is correlated for the Sun, but this does not seem to be true for other stars. We previously demonstrated that this lack of correlation could be due to the presence of filaments. Aims. We aim to establish a link
Delfosse, X., X. Delfosse, Meunier, N., N. Meunier   +3 more
core   +1 more source