Results 51 to 60 of about 158,325 (313)

Formation of terrestrial planet cores inside giant planet embryos

, 2010
Giant planet embryos are believed to be spawned by gravitational instability in massive extended (R ~ 100 AU) protostellar discs. In a recent paper we have shown that dust can sediment inside the embryos, as argued earlier by Boss (1998) in a slightly ...
Armitage, Baraffe, Blum, Boley, Boley, Boss, Boss, Boss, Clarke, Cuzzi, Dominik, Fromang, Gammie, Goldreich, Goldreich, Handbury, Helled, Helled, Ida, Ikoma, Inutsuka, Johansen, Kippenhahn, Larson, Levin, Low, Machida, Masunaga, Masunaga, Masunaga, Mizuno, Morbidelli, Nayakshin, Nayakshin, Pollack, Rafikov, Rees, Rice, Rice, Rice, Safronov, Sasaki, Sergei Nayakshin, Stamatellos, Stevenson, Toomre, Weidenschilling, Weidenschilling, Weidenschilling, Wetherill, Whitworth, Wuchterl, Youdin   +52 more
core   +1 more source

Development of a Novel Processing Route for Dispersoid/Precipitation‐Strengthened High Conductive Copper Alloys by Using Metalized Nanoceramics in Additive Manufacturing

Advanced Engineering Materials, EarlyView.
This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel, Abdelrahman Elsayed, Lukas Mielewczyk, Katja Eichmann, Julia Grothe, Ulrich Krupp, Avinash Hariharan, Katrin Jahns   +7 more
wiley   +1 more source

Integral Education in Light of Earthrise [PDF]

Integral Review, 2015
This article explores the relationship between integral education and the emerging terrestrial consciousness—a consciousness of interdependency, sovereignty, and earthly responsibility.
Craig Chalquist
doaj  

Detecting the Dusty Debris of Terrestrial Planet Formation

, 2004
We use a multiannulus accretion code to investigate debris disks in the terrestrial zone, at 0.7-1.3 AU around a 1 solar mass star. Terrestrial planet formation produces a bright dusty ring of debris with a lifetime of at least 1 Myr. The early phases of
Benjamin C. Bromley, Lynden-Bell D., Scott J. Kenyon, Weinberger A. J.   +3 more
core   +1 more source

A decreased probability of habitable planet formation around low-mass stars [PDF]

, 2007
Smaller terrestrial planets (< 0.3 Earth masses) are less likely to retain the substantial atmospheres and ongoing tectonic activity probably required to support life.
Chambers J. E., Chambers J. E., Clarke C. J., Gonzalez G., Greaves J. S., John Scalo, Morbidelli A., Sean N. Raymond, Victoria S. Meadows, Walker J. C. G.   +9 more
core   +2 more sources

Constraining the primordial orbits of the Terrestrial Planets [PDF]

, 2013
Evidence in the Solar System suggests that the giant planets underwent an epoch of radial migration that was very rapid, with an e-folding timescale shorter than 1~Myr. It is probable that the cause of this migration was that the giant planets experienced an orbital instability that caused them to encounter each other, resulting in radial migration ...
arxiv   +1 more source

Hybrid Framework Materials: Next‐Generation Engineering Materials

Advanced Engineering Materials, EarlyView.
Hybrid organic–inorganic materials merge the unique properties of organic and inorganic compounds, enabling applications in optoelectronics, gas storage, and catalysis. This review explores metal‐organic frameworks, hybrid organic–inorganic perovskites, and the emerging field of hybrid glasses, emphasizing their structures, functionalities, and ...
Jay McCarron, Bethan Turner, Lauren N. McHugh   +2 more
wiley   +1 more source

Choosing Wisely Italy, and the role of doctors in containing the climate emergency

Dermatology Reports, 2023
The philosopher of science, Telmo Pievani, in his beautiful and passionate presentation on 30 September 2023, at the conclusion of the 60th National Congress of the Italian Association of Hospital Dermatologists (ADOI) held in Vicenza, reminded us with ...
Antonio Bonaldi
doaj   +1 more source

On the Migration of Jupiter and Saturn: Constraints from Linear Models of Secular Resonant Coupling with the Terrestrial Planets

, 2011
We examine how the late divergent migration of Jupiter and Saturn may have perturbed the terrestrial planets. We identify six secular resonances between the nu_5 apsidal eigenfrequency of Jupiter and Saturn and the four eigenfrequencies of the ...
Adams, Agnor, Agnor, Batygin, Bottke, Bretagnon, Brouwer, Bryden, Bryden, Chiang, Craig B. Agnor, Cuk, D. N. C. Lin, Duncan, Goldreich, Hahn, Hahn, Hansen, Hartmann, Ida, Kretke, Levison, Levison, Lin, Lissauer, Lissauer, Lyra, Malhotra, Minton, Minton, Morbidelli, Murray, Nagasawa, Papaloizou, Thommes, Thommes, Thommes, Tiscareno, Ward, Wetherill   +39 more
core   +1 more source

The Search for Extrasolar Earth-like planets [PDF]

Earth Planet.Sci.Lett. 208 (2003) 113-124, 2003
The search for extrasolar Earth-like planets is underway. Over 100 extrasolar giant planets are known to orbit nearby sun-like stars, including several in multiple-planet systems. These planetary systems are stepping stones for the search for Earth-like planets; the technology development, observational strategies, and science results can all be ...
arxiv   +1 more source