Results 71 to 80 of about 177,176 (286)

Inner-heliospheric Signatures of Steadily Declining Solar Magnetic Fields and Their Possible Implications

The Astrophysical Journal
We examined solar photospheric magnetic fields for the solar cycles 21–25, covering the period 1975–2024. The unsigned photospheric magnetic fields at low latitudes (0°–45°), known as solar toroidal fields, showed a solar cycle variation with the total ...
Harsha Avinash Tanti, Susanta Kumar Bisoi, Abhirup Datta, K. Fujiki   +3 more
doaj   +1 more source

Flux-dominated solar dynamo model with a thin shear layer

, 2007
Flux-dominated solar dynamo models have demonstrated to reproduce the main features of the large scale solar magnetic cycle, however the use of a solar like differential rotation profile implies in the the formation of strong toroidal magnetic fields at ...
Brandenburg, Chatterjee, Dikpati, Dikpati, Dikpati, Ferriz-Maz, Gilman, Guerrero, Guerrero, Kitchatinov, Nandy, Press, Rogers, Rüdiger, Ziegler   +14 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Temporal Evolution of Sunspot Groups and Increase in the Open Flux during Solar Maximum in Cycle 24

The Astrophysical Journal
The evolution of the global solar magnetic field directly impacts the interplanetary magnetic field (IMF). During the solar maximum of Cycle 24, the monthly averaged IMF strength doubled over five Carrington rotations (CRs) in late 2014.
Minami Yoshida, Toshifumi Shimizu, Shin Toriumi, Haruhisa Iijima   +3 more
doaj   +1 more source

Interpreting Helioseismic Structure Inversion Results of Solar Active Regions

, 2008
Helioseismic techniques such as ring-diagram analysis have often been used to determine the subsurface structural differences between solar active and quiet regions.
A.G. Kosovichev, A.G. Kosovichev, A.G. Kosovichev, A.G. Kosovichev, C.-H. Lin, C.A. Iglesias, C.L. Raftery, Chia-Hsien Lin, D.A. Haber, D.R. Alexander, E. Priest, E.J. Rhodes Jr., F. Hill, F.J. Rogers, F.P. Pijpers, F.P. Pijpers, H.M. Antia, J. Lin, J. Patron, J. Schou, J.M. Bahcall, L.H. Li, L.H. Li, Linghuai Li, P. Demarque, S. Basu, S. Basu, Sarbani Basu, T.J. Lydon, T.L. Duvall Jr., V.V. Zharkova, W.A. Dziembowski   +31 more
core   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Dynamical Evolution of Newly Formed Structures After Magnetic Reconnection

The Astrophysical Journal Letters
Although extensive research on magnetic reconnection, e.g., current sheets, inflows/outflows, and plasma ejections, has been done, the dynamical evolution of newly formed structures during and after the reconnection between two sets of atmospheric ...
Tao Ding, Jun Zhang
doaj   +1 more source

Atomic physics and modern solar spectro-polarimetry

, 2017
Observational solar physics is entering a new era with the advent of new 1.5 m class telescopes with adaptive optics, as well as the Daniel K. Inouye 4 m telescope which will become operational in 2019.
Judge, Philip
core   +1 more source

Surprisingly Large Doppler Shifts in Hinode EUV Imaging Spectrometer (EIS) Solar Spectra Resulting from an Inconspicuous Small-scale Jet in Extreme-ultraviolet Images

The Astrophysical Journal Letters
Strong EUV line shifts in solar spectra are generally indicative of highly dynamic and explosive events that are easily detected in comparable-wavelength EUV images, with the strongest such line shifts (several 100 km s ^−1 ) occurring in solar flares ...
Alphonse C. Sterling, Louise K. Harra, Navdeep K. Panesar, Ronald L. Moore   +3 more
doaj   +1 more source