Results 41 to 50 of about 1,511,102 (293)

Multi-wavelength observations and modeling of a microflare: constraining non-thermal particle acceleration

Frontiers in Astronomy and Space Sciences, 2023
In this work we analyze a small B-class flare that occurred on 29 April 2021 and was observed simultaneously by the Interface Region Imaging Spectrograph (IRIS) and the Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray instrument.
Vanessa Polito, Vanessa Polito, Marianne Peterson, Lindsay Glesener, Paola Testa, Sijie Yu, Katharine K. Reeves, Xudong Sun, Jessie Duncan   +8 more
doaj   +1 more source

Heating and dynamics of the Solar atmosphere

CoRR, 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

The magnetic field in the solar atmosphere [PDF]

The 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., Thalmann, J., Solanki, S.   +2 more
openaire   +3 more sources

Evolution of the thermodynamic properties of a coronal mass ejection in the inner Corona

Frontiers in Astronomy and Space Sciences, 2023
The thermodynamic evolution of Coronal Mass Ejections (CMEs) in the inner corona (≤1.5 Rsun) is not yet completely understood. In this work, we study the evolution of thermodynamic properties of a CME core observed in the inner corona on 20 July 2017, by
Jyoti Sheoran, Vaibhav Pant, Ritesh Patel, Ritesh Patel, Dipankar Banerjee, Dipankar Banerjee, Dipankar Banerjee   +6 more
doaj   +1 more source

Flows in the solar atmosphere due to the eruptions on the 15th July, 2002 [PDF]

, 2005
<p>Which kind of flows are present during flares? Are they compatible with the present understanding of energy release and which model best describes the observations? We analyze successive flare events in order to answer these questions.
C. H. Mandrini, Culhane, J. Leonard, van Driel-Gesztelyi, Lidia, Culhane, J.L., Culhane, J. L., Mandrini, Cristina H., Harra, L.K., Mandrini, Cristina Hemilse, van Driel-Gesztelyi, L., Fletcher, Lyndsay, Matthews, S. A., P. Démoulin, Demoulin, P., J. L. Culhane, Fletcher, L., L. Fletcher, Harra, L. K., van Driel Gesztelyi, Lidia, Démoulin, Pascal, S. A. Matthews, Matthews, S.A., Harra, Louise K., L. K. Harra, Mandrini, C.H., L. van Driel-Gesztelyi, Matthews, Sarah A.   +25 more
core   +1 more source

The Minute Structure of the Solar Atmosphere [PDF]

Proceedings 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

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

Advanced 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, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Structures in the Outer Solar Atmosphere [PDF]

Space 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, Cargill, Peter J., Antiochos, Spiro K., Gudiksen, Boris V.   +3 more
openaire   +2 more sources

Orbit design for future SpaceChip swarm missions in a planetary atmosphere [PDF]

, 2012
The effect of solar radiation pressure and atmospheric drag on the orbital dynamics of satellites-on-a-chip (SpaceChips) is exploited to design equatorial long-lived orbits about the oblate Earth.
Colombo, Camilla, McInnes, Colin
core   +4 more sources

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source