Results 81 to 90 of about 5,169,486 (343)
Instabilities in Multi-Planet Circumbinary Systems [PDF]
, 2019 The majority of the discovered transiting circumbinary planets are located very near the innermost stable orbits permitted, raising questions about the origins of planets in such perturbed environments.
Kratter, Kaitlin M., Sutherland, Adam P.
core +2 more sources
Advanced Engineering Materials, EarlyView.Grinding chips of high‐alloyed steel are prepared to be admixed to a starting powder mixture for laser powder bed fusion. A three‐stage preparation is performed, including washing in acetone, magnetic separation, and ball milling. The addition of 30% of grinding chips to the powder mixture allows the fabrication of dense samples.
Felix Großwendt +4 more
wiley +1 more source
Ionized Envelopes Around Protoplanets and the Role of Radiative Feedback in Gas Accretion
The Astrophysical JournalPlanetary growth within protoplanetary disks involves the accreting of material from their surroundings, yet the underlying mechanisms and physical conditions of the accreting gas remain debated.
Matías Montesinos +7 more
doaj +1 more source
Can planetary instability explain the Kepler dichotomy?
, 2012 The planet candidates discovered by the Kepler mission provide a rich sample to constrain the architectures and relative inclinations of planetary systems within approximately 0.5 AU of their host stars.
Anders Johansen +30 more
core +1 more source
Debris Disks: Probing Planet Formation [PDF]
, 2018 Debris disks are the dust disks found around ~20% of nearby main sequence stars in far-IR surveys. They can be considered as descendants of protoplanetary disks or components of planetary systems, providing valuable information on circumstellar disk ...
M. Wyatt
semanticscholar +1 more source
Nano‐Patterned CuO Nanowire Nanogap Hydrogen Gas Sensor with Voids
Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.Sub‐5‐ppb hydrogen (H2) detection and sub‐10‐s response and recovery times are achieved based on nano‐patterned polycrystalline CuO nanowires nanogap gas sensors with voids using electron‐beam lithography and unique annealing processes. Pre‐H2 annealing, void‐generating oxidation, and downscaled nanogap electrodes are key to improving the sensing ...
Muqing Zhao +4 more
wiley +1 more source
Rapid Protoplanet Formation in Vortices: Three-dimensional Local Simulations with Self-gravity
The Astrophysical Journal LettersDisk vortices, seen in numerical simulations of protoplanetary disks and found observationally in Atacama Large Millimeter/submillimeter Array and Very Large Array images of these objects, are promising sites for planet formation given their pebble ...
Wladimir Lyra +4 more
doaj +1 more source
A Brief Overview of Planet Formation [PDF]
, 2018 The initial conditions, physics, and outcome of planet formation are now constrained by detailed observations of protoplanetary disks, laboratory experiments, and the discovery of thousands of extrasolar planetary systems.
P. Armitage
semanticscholar +1 more source
Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng +14 more
wiley +1 more source
A Thermodynamic Criterion for the Formation of Circumplanetary Disks
The Astrophysical JournalThe formation of circumplanetary disks is central to our understanding of giant planet formation, influencing their growth rate during the post-runaway phase and observability while embedded in protoplanetary disks.
Leonardo Krapp +5 more
doaj +1 more source