Results 41 to 50 of about 107,783 (198)

Alfvén Wave Connection between the Chromosphere and the Corona of the Sun: An Analytical Study

The Astrophysical Journal, 2023
Alfvén waves are closely relevant to the three outstanding problems in the solar corona: coronal heating, solar wind acceleration, and the fractionization of low first ionization potential (FIP) elements.
Jongchul Chae, Kyoung-Sun Lee
doaj   +1 more source

Comparing extrapolations of the coronal magnetic field structure at 2.5 solar radii with multi-viewpoint coronagraphic observations [PDF]

, 2019
The magnetic field shapes the structure of the solar corona but we still know little about the interrelationships between the coronal magnetic field configurations and the resulting quasi-stationary structures observed in coronagraphic images (as ...
Abbo, L., Andretta, V., Antonucci, E., Bemporad, A., Da Deppo, V., Dolei, S., Fineschi, S., Frassetto, F., Howard, R. A., Landini, F., Naletto, G., Nicolini, G., Nicolosi, P., Pancrazzi, M., Pinto, R. F., Romoli, M., Sasso, C., Spadaro, D., Susino, R., Telloni, D., Ventura, R., Vourlidas, A.   +21 more
core   +4 more sources

The Solar X-ray Corona

, 2023
The X-ray emission from the Sun reveals a very dynamic hot atmosphere, the corona, which is characterized by a complex morphology and broad range of timescales of variability and spatial structuring. The solar magnetic fields play a fundamental role in the heating and structuring of the solar corona. Increasingly higher quality X-ray solar observations
Testa, Paola, Reale, Fabio
openaire   +2 more sources

Plasmonic Enhancement of Fluorescence and Protein Dynamics in Living Mammalian Cells

Advanced Materials, EarlyView.
This study demonstrates plasmonic enhancement of the function of fluorescent voltage sensing proteins (genetically encoded voltage indicators, (GEVIs), QuasAr6) in live mammalian cells. Coupling to plasmonic nanoparticles does not just increase fluorescence, but influences the protein photocycle, creating a hybrid sensor with its response speed to ...
Marco Locarno, Qiangrui Dong, Marco Post, Xin Meng, Cristiano Glessi, Nynke Marije Hettema, Nidas Brandsma, Sebbe Blokhuizen, Alejandro Castañeda Garcia, Srividya Ganapathy, Thieme Schmidt, Lars van Roemburg, Bing Xu, Chun‐Ting Cho, Liedewij Laan, Miao‐Ping Chien, Daan Brinks   +16 more
wiley   +1 more source

Multiwavelength Observations of a B-class Flare Using XSM, AIA, and XRT

The Astrophysical Journal, 2023
We present multiwavelength observations by Chandrayaan-2/Solar X-ray Monitor, Solar Dynamics Observatory/Atmospheric Imaging Assembly, and Hinode/X-Ray Telescope (XRT) of a B-class flare observed on 2021 February 25, originating from an active region (AR
Yamini K. Rao, B. Mondal, Giulio Del Zanna, N. P. S. Mithun, S. V. Vadawale, K. K. Reeves, Helen E. Mason, Anil Bhardwaj   +7 more
doaj   +1 more source

Editorial to the Special Issue “Solar Wind Structures and Phenomena: Origins, Properties, Geoeffectiveness, and Prediction”

Universe, 2023
The heliosphere is filled with solar wind, which is formed due to the expansion of the plasma of hot solar corona [...]
Yuri I. Yermolaev, Vladimir A. Slemzin, Volker Bothmer   +2 more
doaj   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

Advanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair, Hrisheekesh Thachoth Chandran, Karl Leo, Hans Kleemann   +3 more
wiley   +1 more source

The Magnetic Field of the Solar Corona from Pulsar Observations

, 2007
We present a novel experiment with the capacity to independently measure both the electron density and the magnetic field of the solar corona. We achieve this through measurement of the excess Faraday rotation due to propagation of the polarised emission
A.J. Faulkner, A.N. Lommen, A.W. Hotan, C.C. Counselman III, C.C. Counselman III, D.J. Morris, D.R. Lorimer, E.A. Jensen, E.M. Splaver, F. Crawford, G. Hobbs, G.S. Levy, J. Sarkissian, J.L. Han, J.M. Weisberg, K.H. Schatten, M. Guhathakurta, M. Kramer, M.D. Altschuler, M.K. Bird, P.A. Hamilton, R.N. Manchester, R.T. Edwards, S. Johnston, S. Johnston, S. Johnston, S. Johnston, S. Johnston, S. M. Ord, S. Mancuso, T.W. Connors   +30 more
core   +1 more source

The SWAP EUV Imaging Telescope Part I: Instrument Overview and Pre-Flight Testing [PDF]

, 2012
The Sun Watcher with Active Pixels and Image Processing (SWAP) is an EUV solar telescope on board ESA's Project for Onboard Autonomy 2 (PROBA2) mission launched on 2 November 2009.
A. De Groof, A. De Groof, B. Nicula, C. L. Raftery, C.E. DeForest, C.L. Raftery, D. B. Seaton, D. Berghmans, D. Berghmans, D. S. Bloomfield, E. D’Huys, E. Mazy, F. Auchère, J. Zender, J. Zender, J.-F. Hochedez, J.-H. Lecat, J.-M. Defise, J.-P. Delaboudinière, J.-P. Halain, J.M. Defise, J.M. Pasachoff, J.R. Lemen, L. Rossi, M. S. Yalim, M.-F. Ravet, P. Rochus, P. T. Gallagher, R.A. Howard, S.L. Freeland, T. Thibert, U. Schühle, V. Slemzin, V. Slemzin   +33 more
core   +1 more source

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source