Results 81 to 90 of about 507,717 (322)
Water loss from terrestrial planets orbiting ultracool dwarfs: implications for the planets of TRAPPIST-1 [PDF]
, 2016 Ultracool dwarfs (UCD) encompass the population of extremely low mass stars (later than M6-type) and brown dwarfs. Because UCDs cool monotonically, their habitable zone (HZ) sweeps inward in time.
É. Bolmont +6 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley +1 more source
The minimum mass of detectable planets in protoplanetary discs and the derivation of planetary masses from high-resolution observations. [PDF]
Monthly notices of the Royal Astronomical Society, 2016 We investigate the minimum planet mass that produces observable signatures in infrared scattered light and submillimetre (submm) continuum images and demonstrate how these images can be used to measure planet masses to within a factor of about 2. To this
G. Rosotti +3 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos +11 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, 2022 In prior work we found that precise approximation of the continuity constraint is crucial for accurate propagation of tracer data when advected through a background incompressible velocity field (Sime et al., 2021, https://doi.org/10.1029/2020gc009349 ...
Nathan Sime +2 more
doaj +1 more source
Survival of Terrestrial Planets in the Presence of Giant Planet Migration
, 2003 The presence of ``Hot Jupiters'', Jovian mass planets with very short orbital periods orbiting nearby main sequence stars, has been proposed to be primarily due to the orbital migration of planets formed in orbits initially much further from the parent ...
Avi M. Mandell +2 more
core +1 more source
197 CANDIDATES AND 104 VALIDATED PLANETS IN K2's FIRST FIVE FIELDS [PDF]
, 2016 We present 197 planet candidates discovered using data from the first year of the NASA K2 mission (Campaigns 0–4), along with the results of an intensive program of photometric analyses, stellar spectroscopy, high-resolution imaging, and statistical ...
I. Crossfield +43 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim +4 more
wiley +1 more source
Burying Earth's Primitive Mantle in the Slab Graveyard
Geochemistry, Geophysics, Geosystems, 2021 The evolution of mantle composition can be viewed as a process of destruction whereby the initial chemical state is overprinted and reworked with time.
T. D. Jones, N. Sime, P. E. van Keken
doaj +1 more source
, 2011 During the late stage of planet formation when Mars-size cores appear, interactions among planetary cores can excite their orbital eccentricities, speed their merges and thus sculpture the final architecture of planet systems.
Andrews +38 more
core +1 more source