Results 41 to 50 of about 1,346 (168)

Broken Structural Symmetry in Terahertz Detectors: Physical Mechanisms, Device Design, and Recent Advances

open access: yesSmall Structures, Volume 6, Issue 11, November 2025.
Breaking the structural symmetry of devices is a crucial design strategy that endows terahertz (THz) detectors with novel operating mechanisms and unique characteristics. This study provides an in‐depth discussion on symmetry‐breaking‐induced phenomena, novel asymmetric structures, and dominant detection mechanisms.
Hecheng Han   +8 more
wiley   +1 more source

Hydrothermal Circulation During Continental Breakup: Evolution of a Subseafloor Stockwork Mineralization at the South China Sea Rifted Margin

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract Hydrothermal activity during continental breakup and early oceanic spreading is poorly understood due to limited samples. A basalt‐hosted hydrothermal mineralization, drilled during IODP Expedition 367/368 at the northern South China Sea at the continent‐ocean transition provides a unique opportunity to investigate this phenomenon.
Jörg Follmann   +3 more
wiley   +1 more source

How to distinguish an actual astrophysical magnetized black hole mimicker from a true (theoretical) black hole [PDF]

open access: green, 2021
Abhas Mitra   +5 more
openalex   +1 more source

Electrical Conductivity During Controlled Deformation at Upper‐Mantle Conditions: First Experimental Achievements in a Griggs‐Type Apparatus

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract Electrical conductivity measurements on well‐characterized materials in the laboratory allow accurate interpretations of high‐conductivity anomalies within the lithosphere and asthenosphere, both affected by substantial deformation over geological times.
Thomas P. Ferrand   +7 more
wiley   +1 more source

Upper limits on the temperature of inspiraling astrophysical black holes

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We present a method to constrain the temperature of astrophysical black holes through detecting the inspiral phase of binary black hole coalescences.
Adrian Ka-Wai Chung, Mairi Sakellariadou
doaj   +1 more source

Multi‐Platform Observations of the Radial Penetration of Substorm Injected Electrons and Subsequent Slot‐Filling Event

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract On 15 February 2018 a co‐rotating interaction region (CIR) from an equatorial coronal hole reached the Earth. The CIR initiated a moderate and slowly intensifying geomagnetic storm, which began with a large and strong substorm injection.
Geoffrey D. Reeves   +27 more
wiley   +1 more source

Interpretable Machine Learning for Finding Intermediate-mass Black Holes

open access: yesThe Astrophysical Journal
Definitive evidence that globular clusters (GCs) host intermediate-mass black holes (IMBHs) is elusive. Machine-learning (ML) models trained on GC simulations can in principle predict IMBH host candidates based on observable features.
Mario Pasquato   +6 more
doaj   +1 more source

Nonlinear electrodynamics effects on the geometry, thermodynamics, and quantum dynamics of (2+1)-dimensional black holes

open access: yesNuclear Physics B
Black holes in (2+1) dimensions serve as valuable toy models for understanding key aspects of real astrophysical black holes, providing insights into quantum gravity and thermodynamic properties.
Erdem Sucu, İzzet Sakallı
doaj   +1 more source

Scalar-Tensor Black Holes Embedded in an Expanding Universe

open access: yesUniverse, 2018
In this review, we focus our attention on scalar-tensor gravity models and their empirical verification in terms of black hole and wormhole physics.
Daria Tretyakova, Boris Latosh
doaj   +1 more source

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