Results 181 to 190 of about 4,034,717 (373)

Tilted Circumbinary Planetary Systems as Efficient Progenitors of Free-floating Planets

The Astrophysical Journal Letters
The dominant mechanism for generating free-floating planets has so far remained elusive. One suggested mechanism is that planets are ejected from planetary systems due to planet–planet interactions.
Cheng Chen, Rebecca G. Martin, Stephen H. Lubow, C. J. Nixon   +3 more
doaj   +1 more source

Global models of planetary system formation in radiatively-inefficient protoplanetary discs

, 2011
(Abridged) We present the results of N-body simulations of planetary systems formation in radiatively-inefficient disc models, where positive corotation torques may counter the rapid inward migration of low mass planets driven by Lindblad torques.
Adachi, Batalha, Bell, Bell, Bitsch, Bonfils, Bryden, Butler, Chambers, Clarke, Cresswell, Daisaka, D’Angelo, Fischer, Fogg, Fogg, Goldreich, Hayashi, Ida, Ida, Inaba, Ivanov, Kalas, Kley, Lagrange, Lin, Lissauer, Lissauer, Lyra, Léger, Marois, Masset, Masset, Mayor, McNeil, McNeil, McNeil, Miguel, Mordasini, Mordasini, Movshovitz, Nelson, Paardekooper, Paardekooper, Paardekooper, Papaloizou, Papaloizou, Phil Hellary, Pollack, Richard P. Nelson, Sicilia-Aguilar, Syer, Terquem, Thommes, Ward, Ward   +55 more
core   +1 more source

Tunable 3D Aerosol Jet Printing of Low‐Power Redox‐Gated Transistors with Multicomponent Inks

Advanced Materials Technologies, EarlyView.
Printed hybrid electronics emerge as a versatile option for fabricating microelectronics using customized multicomponent inks. Leveraging additive manufacturing, redox‐chemistry, and correlated metal oxide nanoparticles, this study presents a multilayered solid‐state VO2 transistor fabricated via aerosol jet printing.
Andrew J. Erwin, Shiyu Hu, Hua Zhou, Samuel D. Miller, Evan J. Musterman, Andrew M. Kiss, Yang Yang, Yuepeng Zhang, Wei Chen   +8 more
wiley   +1 more source

NEW CANDIDATES FOR PLANETARY-MASS BROWN DWARFS IN IC 348. [PDF]

Astron J, 2020
Luhman KL, Hapich CJ.
europepmc   +1 more source

Ancient planetary systems are orbiting a large fraction of white dwarf stars

, 2010
Infrared studies have revealed debris likely related to planet formation in orbit around ~30% of youthful, intermediate mass, main sequence stars.
B. Klein, B. Zuckerman, Bennett, Bergeron, Bowler, C. Melis, Chiang, Currie, D. Koester, Davis, Debes, Desharnais, Dufour, Dufour, Eisenstein, Farihi, Farihi, Gorlova, Jura, Jura, Jura, Jura, Jura, Jura, Jura, Jura, Kilic, Kilic, Kilic, Klein, Koester, Limoges, Lodders, M. Jura, Macintosh, McCook, Melis, Osterbrock, Reach, Rebull, Rhee, Sfeir, Sion, Su, Su, Tremblay, Trilling, Trujillo, von Hippel, Zuckerman, Zuckerman   +50 more
core   +1 more source

High‐Resolution Stereolithography of Amorphous, Dense and Mechanically Stable Bioactive Glass

Advanced Materials Technologies, EarlyView.
Porous scaffolds made of bioactive glass are of great interest for bone tissue engineering. The geometry and resolution of the scaffold is impacting its bioactive and mechanical performance. Utilizing stereolithographic 3D printing of bioactive glass, human cancellous bone scaffolds, and other structures are fabricated with features as small as 77 µm ...
Leonhard Hambitzer, Zahra Hosneolfat, Kristin Griebenow, Richard Prediger, Sebastian Kluck, Ines Ketterer, Shaher Bano Zaidi, Delia S. Brauer, Frederik Kotz‐Helmer   +8 more
wiley   +1 more source

The Validity of Mass Functions for the Central Stars of Planetary Nebulae [PDF]

, 2000
J. P. Phillips
openalex   +1 more source

Probing planetary-mass primordial black holes with continuous gravitational waves [PDF]

, 2020
Andrew L. Miller, S. Clesse, F. De Lillo, G. Bruno, A. Depasse, A. Tanasijczuk   +5 more
semanticscholar   +1 more source

Planet migration and gap formation by tidally-induced shocks

, 2001
Gap formation in a gas disk triggered by disk-planet tidal interaction is considered. Density waves launched by the planet are assumed to be damped as a result of their nonlinear evolution leading to shock formation and its subsequent dissipation.
Mizuno H., R. R. Rafikov, Shakura N. I.
core   +1 more source

Poka: A Necro‐Robot Beetle with a Measured Payload Ratio of 6847%

Advanced Robotics Research, EarlyView.
Here, Poka, a necro‐robot beetle with the ability to carry more than 68 times its own weight, is introduced, making it also a walking robot with the highest payload ratio measured to date. This paper is concerned with the design, manufacture and validation of ‘Poka', a novel millimetre‐scale necro‐robot aimed at bridging the performance gap between ...
Yordan Tsvetkov, Parvez Alam
wiley   +1 more source