Results 11 to 20 of about 85,786 (301)

The evolution of hierarchical triple star-systems [PDF]

open access: yesComputational Astrophysics and Cosmology, 2016
AbstractField stars are frequently formed in pairs, and many of these binaries are part of triples or even higher-order systems. Even though, the principles of single stellar evolution and binary evolution, have been accepted for a long time, the long-term evolution of stellar triples is poorly understood.
Toonen, S.G.M.   +2 more
openaire   +5 more sources

Once a Triple, Not Always a Triple: The Evolution of Hierarchical Triples That Yield Merged Inner Binaries

open access: yesThe Astrophysical Journal
More than half of all main-sequence (MS) stars have one or more companions, and many of those with initial masses 10 yr) companions. Furthermore, both BSS binaries and DWDs exhibit signatures of WD birth kicks.
Cheyanne Shariat   +6 more
doaj   +3 more sources

Return of the TEDI: Revisiting the Triple Evolution Dynamical Instability Channel in Triple Stars

open access: yesThe Astrophysical Journal, 2022
Abstract Triple-star systems exhibit a phenomenon known as triple evolution dynamical instability (TEDI), in which mass loss in evolving triples triggers short-term dynamical instabilities, potentially leading to collisions of stars, exchanges, and ejections.
Adrian S. Hamers   +3 more
openaire   +4 more sources

Evolution of triple stars

open access: yes
This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor F.R.N.
Hagai B Perets
exaly   +3 more sources

Triple Helix and the evolution of ecosystems of innovation: the case of Silicon Valley [PDF]

open access: yesTriple Helix, 2018
Resumen El ecosistema de innovación de Silicon Valley ha evolucionado en la última década. El objectivo de este estudio es el de entender cómo evoluciona ese ecosistema debido a cambios en el papel desempeñado por los agentes de la Triple Hélice, y en ...
Josep M. Pique   +2 more
doaj   +2 more sources

Atomic mixing mechanisms in nanocrystalline Cu/Ni composites under continuous shear deformation and thermal annealing

open access: yesJournal of Materials Research and Technology, 2023
Molecular dynamics (MD) simulations are used to reveal the mechanisms of defect substructure evolution and atomic mixing in nanocrystalline Cu/Ni composites under severe shear deformation and subsequent thermal annealing.
Nanjun Chen   +3 more
doaj   +1 more source

The evolution of stellar triples [PDF]

open access: yesAstronomy & Astrophysics, 2020
Context. Many stars do not live alone, but instead have one or more stellar companions. Observations show that these binaries, triples, and higher-order multiples are common. While the evolution of single stars and binaries have been studied extensively, the same is not true for the evolution of stellar triples. Aims. To fill in this gap in our general
Toonen, S.G.M.   +3 more
openaire   +4 more sources

Trace Amounts of Triple-Functional Additives Enable Reversible Aqueous Zinc-Ion Batteries from a Comprehensive Perspective

open access: yesNano-Micro Letters, 2023
Highlights A triple functional additive with a trace amount (1 mM) was proposed to protect Zn anodes. The additive lowers the hydrogen evolution reaction potential, encourages the formation of an in situ solid electrolyte interphase and shields the “tip ...
Ruwei Chen   +14 more
doaj   +1 more source

Contact Dynamics: Legendrian and Lagrangian Submanifolds

open access: yesMathematics, 2021
We are proposing Tulczyjew’s triple for contact dynamics. The most important ingredients of the triple, namely symplectic diffeomorphisms, special symplectic manifolds, and Morse families, are generalized to the contact framework. These geometries permit
Oğul Esen   +3 more
doaj   +1 more source

Understanding patterns of HIV multi-drug resistance through models of temporal and spatial drug heterogeneity

open access: yeseLife, 2021
Triple-drug therapies have transformed HIV from a fatal condition to a chronic one. These therapies should prevent HIV drug resistance evolution, because one or more drugs suppress any partially resistant viruses.
Alison F Feder   +3 more
doaj   +1 more source

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