Results 41 to 50 of about 354,357 (295)

Secular Spin–Orbit Resonances of Black Hole Binaries in AGN Disks

open access: yesThe Astrophysical Journal, 2023
The spin–orbit misalignment of stellar-mass black hole (sBH) binaries provides important constraints on the formation channels of merging sBHs. Here, we study the role of secular spin–orbit resonance in the evolution of an sBH binary component around a ...
Gongjie Li   +3 more
doaj   +1 more source

Binary Gravitational Perturbations and Their Influence on the Habitability of Circumstellar Planets

open access: yesFrontiers in Astronomy and Space Sciences, 2021
In order to assess the habitability of planets in binary star systems, not only astrophysical considerations regarding stellar and atmospheric conditions are needed, but orbital dynamics and the architecture of the system also play an important role. Due
Elke Pilat-Lohinger, Ákos Bazsó
doaj   +1 more source

Perfect Absorption Metasurfaces with Multiple Meta-Resonances

open access: yes, 2019
We show that the hybrid resonances of a DMR backed by a cavity are meta-resonances, in that they can be made as perfect as possible by fine tuning the structural parameters but without the requirements of extreme materials properties, such as zero ...
Joshua Chau (17505633)   +3 more
core   +1 more source

Circularly Polarized Electroluminescence and Spin‐Polarized Carrier Transport in Chiral‐Doped Polymer Films

open access: yesAdvanced Functional Materials, EarlyView.
Chiral dopants induce supramolecular chirality in an achiral polymer (PFO), generating spin‐polarized carriers via the chiral‐induced spin selectivity (CISS) and suggesting a possible contribution of Spin‐polarized carrier transport to circularly polarized electroluminescence (CPEL).
Kazuyuki Asahi   +4 more
wiley   +1 more source

Coupling of Dynamical Tide and Orbital Motion

open access: yesThe Astrophysical Journal
The dynamical tide consists of various waves that can resonate with orbital motion. We test this coupling of the dynamical tide and orbital motion using a simple 2D shallow water model, which can be applied to a rocky planet covered with a thin ocean or ...
Xing Wei
doaj   +1 more source

SHAPE RESONANCES IN PHOTOIONIZATION: CORRELATION WITH STO-3G MO RESULTS

open access: yes, 1984
Shape resonances in nine linear molecules are investigated by multiple-scattering and molecular-orbital calculations. Each resonance correlates with a bound-state virtual orbital.
Schweig, A.   +5 more
core   +1 more source

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

open access: yesAdvanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar   +9 more
wiley   +1 more source

15:1 RESONANCE EFFECTS ON THE ORBITAL MOTION OF ARTIFICIAL SATELLITES. DOI: 10.5028/jatm.2011.03032011

open access: yesJournal of Aerospace Technology and Management, 2012
The motion of an artificial satellite is studied considering geopotential perturbations and resonances between the frequencies of the mean orbital motion and the Earth rotational motion.
Jorge Kennety Formiga   +1 more
doaj  

Orbital stability of compact three-planet systems

open access: yesAstronomy & Astrophysics
Context. Observational surveys show that at least ∼30% of short-period multi-planet systems contain planets in tightly packed orbits. Some of these systems are locked in stable chains of mean-motion resonances.
Gavino S., Lissauer J. J.
doaj   +1 more source

Timescales of Chaos in the Inner Solar System: Lyapunov Spectrum and Quasi-integrals of Motion

open access: yesPhysical Review X, 2023
Numerical integrations of the Solar System reveal a remarkable stability of the orbits of the inner planets over billions of years, in spite of their chaotic variations characterized by a Lyapunov time of only 5 million years and the lack of integrals of
Federico Mogavero   +2 more
doaj   +1 more source

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