Results 51 to 60 of about 27,444 (310)
Driving Mechanisms of Solar Active Region Geysers: The Role of Interacting Magnetic Flux
The Astrophysical Journal LettersActive region (AR) recurrent jets are manifestations of episodic magnetic energy release processes driven by complex interactions in the lower solar atmosphere.
Aabha Monga +4 more
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The Astrophysical Journal, 2023 The distribution and evolution of photospheric magnetic fields in sunspots, plages, and network, and variations in their relative flux content, play key roles in radial velocity (RV) fluctuations observed in Sun-as-a-star spectra.
Anisha Sen, S. P. Rajaguru
doaj +1 more source
Advanced Functional Materials, EarlyView.MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan +16 more
wiley +1 more source
A Tale of Two Emergences: Sunrise II Observations of Emergence Sites in a Solar Active Region [PDF]
, 2016 In 2013 June, the two scientific instruments on board the second Sunrise mission witnessed, in detail, a small-scale magnetic flux emergence event as part of the birth of an active region. The Imaging Magnetograph Experiment (IMaX) recorded two small ( )
R. Centeno +14 more
semanticscholar +1 more source
A Secondary Fan-spine Magnetic Structure in Active Region 11897 [PDF]
Astrophysical Journal, 2018 Fan-spine is a special topology in solar atmosphere and is closely related to magnetic null point, as well as circular-ribbon flares, which can provide important information for understanding the intrinsic 3D nature of solar flares.
Yijun Hou +3 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni +10 more
wiley +1 more source
The Astrophysical Journal Letters, 2023 We performed two data-based magnetohydrodynamic (MHD) simulations for solar active region 12371, which produced an M6.5 flare. The first simulation is a full data-driven simulation where the initial condition is given by a nonlinear force-free field ...
Satoshi Inoue +4 more
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Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production
Advanced Functional Materials, EarlyView.Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen +4 more
wiley +1 more source
The Long-term Evolution of the Solar Transition Region
The Astrophysical JournalLong-term evolution characteristics of the solar transition region have been unclear. In this study, daily images of the solar full disk derived from the observations by the Solar Dynamics Observatory/Atmospheric Imaging Assembly at 304 Å wavelength from
W. Q. Chen, K. J. Li, J. C. Xu
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THE CONFINED X-CLASS FLARES OF SOLAR ACTIVE REGION 2192 [PDF]
Proceedings of the International Astronomical Union, 2015 The unusually large active region (AR) NOAA 2192, observed in 2014 October, was outstanding in its productivity of major two-ribbon flares without coronal mass ejections.
J. Thalmann +3 more
semanticscholar +1 more source