Results 71 to 80 of about 41,807 (281)

Orbital and Collisional Evolution of the Irregular Satellites [PDF]

The Astronomical Journal, 2003
The irregular moons of the Jovian planets are a puzzling part of the solar system inventory. Unlike regular satellites, the irregular moons revolve around planets at large distances in tilted and eccentric orbits. Their origin, which is intimately linked with the origin of the planets themselves, is yet to be explained.
David Nesvorn, Jose L. A. Alvarellos, Luke Dones, Harold F. Levison   +3 more
openaire   +1 more source

Cats and Dogs, Hair and A Hero: A Quintet of New Milky Way Companions [PDF]

, 2006
We present five new satellites of the Milky Way discovered in Sloan Digital Sky Survey (SDSS) imaging data, four of which were followed-up with either the Subaru or the Isaac Newton Telescopes. They include four probable new dwarf galaxies -- one each in
A. Nitta, B. Yanny, C. M. Rockosi, Christlieb N., D. B. Zucker, D. Long, D. M. Bramich, D. P. Schneider, Drinkwater M. J., E. F. Bell, Efstathiou G., G. Gilmore, H. Brewington, H. J. Newberg, H.‐W. Rix, Ibata R. A., Irwin M., Irwin M. J., J. A. Smith, J. Brinkmann, J. C. Barentine, J. Krzesinski, J. T. A. De Jong, J. T. Kleyna, Lynden-Bell D., Lynden-Bell D., M. Fellhauer, M. Harvanek, M. I. Wilkinson, M. J. Irwin, N. W. Evans, Newberg H. J., O. Y. Gnedin, P. A. Mayeur, P. C. Hewett, R. F. G. Wyse, S. A. Snedden, S. J. Kleinman, S. Koposov, S. T. Hodgkin, S. Vidrih, T. C. Beers, V. Belokurov, Weilbacher P. M.   +43 more
core   +2 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Semi-analytical orbital model around an oblate body with an inclined eccentric perturber

Frontiers in Astronomy and Space Sciences, 2023
The semi-analytical model (based on the averaging technique) for long-term orbital evolution has proven to be useful in both astrophysical and astrodynamical contexts.
Tao Fu, Yue Wang, Weiduo Hu
doaj   +1 more source

Collisional Evolution of Irregular Satellite Swarms: Detectable Dust around Solar System and Extrasolar Planets

, 2010
Since the 1980's it has been becoming increasingly clear that the Solar System's irregular satellites are collisionally evolved. We derive a general model for the collisional evolution of an irregular satellite swarm and apply it to the Solar System and ...
Agnor, Arnold, Aumann, Baraffe, Barrado y Navascues, Beichman, Beichman, Benz, Benz, Bottke, Bottke, Buratti, Burns, Burns, Campo Bagatin, Canup, Carruba, Chiang, Collier Cameron, Colombo, Cox, Dohnanyi, Dominik, Durda, Fernández, G. M. Kennedy, Gladman, Goldreich, Gomes, Gustafson, Heng, Heppenheimer, Hills, Holman, Horanyi, Jewitt, Kalas, Kalas, Kelsall, Kennedy, Kessler, Krist, Krivov, Krüger, Lagrange, Leinhardt, Leonard, Levison, M. C. Wyatt, Marois, Morbidelli, Mueller, Nesvorný, Nesvorný, O’Brien, Poglitsch, Pollack, Quillen, Sadakane, Shen, Sheppard, Sheppard, Stansberry, Stewart, Tsiganis, Verbiscer, Wyatt, Wyatt, Wyatt, Wyatt, Wyatt, Wyatt, Ćuk   +72 more
core   +1 more source

Light curves and colours of the faint Uranian irregular satellites Sycorax, Prospero, Stephano, Setebos and Trinculo [PDF]

, 2007
After the work of Gladman et al. (1998), it is now assessed that many irregular satellites are orbiting around Uranus. Despite many studies have been performed in past years, very few is know for the light-curves of these objects and inconsistencies are ...
Agnor, Appenzeller, Brunini, Byl, Colombo, Connelly, Cumming, Cumming, G. Carraro, Gladman, Gladman, Grav, Grav, Grav, Heppenheimer, Heppenheimer, Horedt, Horne, Jewitt, Kaasalinen, Kavelaars, Landolt, Lomb, Luu, M. G. Parisi, M. Maris, Maris, Nesvorný, Parisi, Parisi, Pollack, Rettig, Romon, Scargle, Sheppard, Slattery, Tsui   +36 more
core   +2 more sources

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Irregular Moons Possibly Injected from the Outer Solar System by a Stellar Flyby

The Astrophysical Journal Letters
The irregular moons orbit the giant planets on distant, inclined, and eccentric trajectories, in sharp contrast with the coplanar and quasicircular orbits of the regular moons.
Susanne Pfalzner, Amith Govind, Frank W. Wagner   +2 more
doaj   +1 more source

Collisional Origin of Families of Irregular Satellites

The Astronomical Journal, 2004
A distinctive feature of the irregular moons of the giant planets is their orbital grouping. Previously, the prograde and retrograde groups of irregular moons at Jupiter were believed to be groups of fragments produced by the disruption of two large moons.
David Nesvorn, Cristian Beaug, Luke Dones   +2 more
openaire   +1 more source