Results 111 to 120 of about 20,361 (303)

Secular Evolution of Planetary Systems in Binaries

, 2007
The orbital eccentricity of a single planet around a component of a stellar binary system with a sufficiently large mutual inclination angle is known to oscillate on a secular timescale through the Kozai mechanism. We have investigated the effects of the Kozai mechanism on double-planet systems in binaries.
Takeda, Genya, Kita, Ryosuke, Rasio, Frederic A., Rubinstein, Samuel M.   +3 more
openaire   +2 more sources

Six Phases of Cosmic Chemistry [PDF]

, 2013
The article presents a conceptually unified, quantitative account of the development of chemical phenomena throughout the cosmic history, with a detailed discussion of the cosmological, astrophysical, geological, biological and anthropological context ...
Lamza, Lukasz
core  

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

ALMA Reveals an Eccentricity Gradient in the Fomalhaut Debris Disk

The Astrophysical Journal
We present evidence of a negative eccentricity gradient in the debris disk of the nearby A-type main-sequence star, Fomalhaut. Fitting to the high-resolution, archival ALMA 1.32 mm continuum data for Fomalhaut (with a synthesized angular resolution of 0 $
Joshua B. Lovell, Elliot M. Lynch, Jay Chittidi, Antranik A. Sefilian, Sean M. Andrews, Grant M. Kennedy, Meredith MacGregor, David J. Wilner, Mark C. Wyatt   +8 more
doaj   +1 more source

Autonomous Locomotion of Tensegrity Structure on Low‐Temperature Surfaces

Advanced Robotics Research, EarlyView.
A low‐temperature responsive tensegrity structure (LRTS) is constructed by integrating low‐responsive temperature liquid crystal elastomer (LCE) cables, nonresponsive cables, and stiff rods. The low phase transition temperature of LCE is achieved by introducing a new liquid crystal mesogen.
Changyue Liu, Kai Li, Tianyu Li, Zixuan Wang, Jiping Yang, Zhijian Wang   +5 more
wiley   +1 more source

Planet–Planet Scattering and Von Zeipel–Lidov–Kozai Migration—The Dynamical History of HAT-P-11

The Astrophysical Journal
The two planets of the HAT-P-11 system represent fascinating dynamical puzzles due to their significant eccentricities and orbital misalignments. In particular, HAT-P-11 b is in a close-in orbit in which tides should have circularized well within the age
Tiger Lu, Qier An, Gongjie Li, Sarah C. Millholland, Malena Rice, G. Mirek Brandt, Timothy D. Brandt   +6 more
doaj   +1 more source

The origins of planetary worlds

, 2017
The solar system is the only place in the entire cosmos that we have surveyed directly using spacecrafts. Years of long and fascinating collaborative efforts between many different disciplines have helped us understand its origins and subsequent ...
Narayanan, Anand
core  

Exploring planetary regolith: deriving geotechnically meaningful properties from penetrometry

Understanding the properties of planetary regolith is important for unravelling the origin and evolution of bodies in our solar system. On Earth, properties of regolith are identified in the laboratory through a variety of methods such as coring samples,
Smyth-Moore, Alexander, Granvik, Mikael Matias Sebastian, Murdoch, Naomi, Miyamoto, Hideaki, Kaufmann, Erika, Jia, Qi, Granvik, Mikael, Hagermann, Axel   +7 more
core   +1 more source

History and Habitability of the LP 890-9 Planetary System [PDF]

: We present numerous aspects of the evolution of the LP 890-9 (SPECULOOS-2/TOI-4306) planetary system, focusing on the likelihood that planet c can support life.
Wojack, Jonathan T.,, Koren, Matheus Daniel, Ngo, Cecelia,, Shadab, Mohammad Afzal, Damasso, Mario,, Broussard, Wynter, Koren, Matheus Daniel,, Gialluca, Megan, Ahmed, M. D. Redyan,, Birky, Jessica, La Greca, Roberto, Wojack, Jonathan T, Texeira, Katie, Vega, Karen N Delgado, Ngo, Cecelia, Vijayakumar, Rohit, Texeira, Katie,, Becker, Juliette, Deitrick, Russell, Ducrot, Elsa,, Miranda-Rosete, Arturo,, Danchi, William C, Bonney, Paul,, Delgado Vega, Karen N. Delgado,, Schlecker, Martin, Leung, Michaela,, Hill, Michelle L.,, Garcia, Rodolfo, Jackman, James A. G.,, Broussard, Wynter,, Vazan, Allona, Sedler, Melissa, Karawacki, Mikolaj,, Gupta, Sakshi, Schwieterman, Edward W.,, do Amaral, Laura NR, Fromont, Emeline F, Gupta, Sakshi,, Leung, Michaela, Olohoy, Michael Kent A, Vijayakumar, Rohit,, Janin, Estelle M, Shadab, Mohammad Afzal,, Barnes, Rory, Miranda-Rosete, Arturo, Driscoll, Peter, Carone, Ludmila, Livesey, Joseph R, Driscoll, Peter,, Olohoy, Michael Kent A.,, Gaches, Brandt AL, Chawla, Chetan, Livesey, Joseph R.,, Ahmed, Redyan, Ducrot, Elsa, Adams, Arthur, Becker, Juliette,, Vazan, Allona,, Deitrick, Russell,, Adams, Arthur,, Graham, David, Garcia, Rodolfo,, Birky, Jessica,, Paul, Daria, Cui, Kaiming, Jackman, James AG, Schwieterman, Edward W, Danchi, William C.,, Janin, Estelle M.,, Schlecker, Martin,, Damasso, Mario, Barnes, Rory,, Sahu, Chandan Kumar,, Cui, Kaiming,, Fromont, Emeline F.,, do Amaral, Laura N. R.,, Bonney, Paul, Karawacki, Mikołaj, Carone, Ludmila,, Paul, Daria,, Graham, David,, Sarkar, Debajyoti Basu, Gialluca, Megan,, Gaches, Brandt,, Hill, Michelle L, Sahu, Chandan Kumar   +85 more
core   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source