Results 41 to 50 of about 9,183 (293)
On the Detectability of Large-Scale Flows by Asteroseismology
Frontiers in Astronomy and Space Sciences, 2020 Large-scale convective motions are an integral part of stellar interior dynamics and might play a relevant role in stellar dynamo processes. However, they are difficult to detect or characterize.
Markus Roth, Wiebke Herzberg
doaj +1 more source
The core helium flash revisited III. From Pop I to Pop III stars
, 2010 Degenerate ignition of helium in low-mass stars at the end of the red giant branch phase leads to dynamic convection in their helium cores. One-dimensional (1D) stellar modeling of this intrinsically multi-dimensional dynamic event is likely to be ...
Campbell, Simon W. +3 more
core +1 more source
The coupling between internal waves and shear-induced turbulence in stellar radiation zones: the critical layer [PDF]
, 2013 Internal gravity waves (hereafter IGWs) are known as one of the candidates for explaining the angular velocity profile in the Sun and in solar-type main-sequence and evolved stars, due to their role in the transport of angular momentum.
Alvan, Lucie +2 more
core +4 more sources
The Effect of Convection in Nonlinear One-Zone Stellar Models [PDF]
International Astronomical Union Colloquium, 1993 AbstractWe study the convective nonlinear one-zone models of the pulsating variable stars. In the small convective case, the solution shows chaotic behavior through the period doubling bifurcation as the temperature is lower although the temperature at which the chaos appears is lower than in the case of no convection.
openaire +1 more source
Diamagnetic pumping near the base of a stellar convection zone [PDF]
Astronomische Nachrichten, 2008 AbstractThe property of inhomogeneous turbulence in conducting fluids to expel large‐scale magnetic fields in the direction of decreasing turbulence intensity is shown as important for the magnetic field dynamics near the base of a stellar convection zone.
Kitchatinov, L. L., Rüdiger, G.
openaire +2 more sources
Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Origin and evolution of magnetic fields in PMS stars : influence of rotation and structural changes
, 2017 During stellar evolution, especially in the PMS, stellar structure and rotation evolve significantly causing major changes in the dynamics and global flows of the star.
Brun, Allan Sacha +1 more
core +1 more source
Advanced Engineering Materials, EarlyView.A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič +7 more
wiley +1 more source
Dynamos in Stellar Convection Zones: of Wreaths and Cycles [PDF]
Journal of Physics: Conference Series, 2011 10 pages, 5 figures, a4 format; proceedings for SOHO 24/GONG 2010 conference: "A new era of seismology of the Sun and solar-like stars," Aix-en-Provence, France, June 27-July 4, 2010 (JPCS)
openaire +2 more sources
Advanced Functional Materials, EarlyView.For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin +7 more
wiley +1 more source