Results 131 to 140 of about 16,229 (284)

Astrometry and Precise Radial Velocities Yield a Complete Orbital Solution for the Nearby Eccentric Brown Dwarf LHS 1610 b

The Astronomical Journal
The LHS 1610 system consists of a nearby ( d = 9.7 pc) M5 dwarf hosting a candidate brown dwarf companion in a 10.6 days, eccentric ( e ∼ 0.37) orbit.
Evan Fitzmaurice, Guđmundur Stefánsson, Robert D. Kavanagh, Suvrath Mahadevan, Caleb I. Cañas, Joshua N. Winn, Paul Robertson, Joe P. Ninan, Simon Albrecht, J. R. Callingham, William D. Cochran, Megan Delamer, Eric B. Ford, Shubham Kanodia, Andrea S. J. Lin, Marcus L. Marcussen, Benjamin J. S. Pope, Lawrence W. Ramsey, Arpita Roy, Harish Vedantham, Jason T. Wright   +20 more
doaj   +1 more source

Elimination of Necking and Aspect Ratio Dependence in Uniaxial Actuators by Continuous Fiber Reinforcement

Advanced Robotics Research, EarlyView.
A novel carbon fiber reinforcement for dielectric elastomer actuators enhances actuation force while decoupling electromechanical performance from the actuator's aspect ratio. Unlike conventional fiber reinforcements, it enables a uniform planar stretch state along the entire actuator.
Markus Koenigsdorff, Stefania Konstantinidi, Anett Endesfelder, Petr Osipov, Johannes Mersch, E.‐F. Markus Vorrath, Martina Zimmermann, Yves Perriard, Gerald Gerlach   +8 more
wiley   +1 more source

Where does the simplified stellar contamination model fail in exoplanet transmission spectroscopy?

Astronomy & Astrophysics
Stellar photospheric heterogeneities (e.g., starspots and faculae) distort the apparent stellar spectrum during a transit and imprint wavelength-dependent biases on the measured planet–to–star radius ratio. This transit light source effect (TLSE) must be
Sumida V. Y. D., Estrela R., Swain M., Valio A.   +3 more
doaj   +1 more source

Formation Control of Multi‐Agent System with Local Interaction and Artificial Potential Field

Advanced Robotics Research, EarlyView.
This article proposes a local interaction‐based formation control method for Multi‐Agent system, integrating consensus and leader‐follower strategies with a stress response mechanism—artificial potential field to reduce communication overhead and enable obstacle avoidance. Experimental results on triangular, square, and hexagonal formations confirm its
Luoyin Zhao, Zheping Yan, Yuqing Wang, Raye Chen‐Hua Yeow   +3 more
wiley   +1 more source

Impact of Stellar Magnetism on Star-planet Tidal Interactions

, 2019
International audienceOver the last two decades, about 4000 exoplanets have been discovered around low-mass stars. For the shortest period exoplanets, star-planet tidal interactions are likely to have played a major role in the ultimate orbital evolution
Astoul, Aurélie, Mathis, Stéphane, Augustson, Kyle, Bolmont, Emeline, Gallet, Florian, Brun, Allan Sacha, Strugarek, Antoine, Baruteau, Clément   +7 more
core   +1 more source

Separating Super-puffs versus Hot Jupiters among Young Puffy Planets

The Astrophysical Journal
Discoveries of close-in young puffy ( R _p ≳ 6 R _⊕ ) planets raise the question of whether they are bona fide hot Jupiters or puffed-up Neptunes, potentially placing constraints on the formation location and timescale of hot Jupiters.
Amalia Karalis, Eve J. Lee, Daniel P. Thorngren   +2 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

Clinical, genetic, and functional characterization of four patients carrying partial loss-of-function mutations in the steroidogenic acute regulatory protein (StAR)

, 2010
Context: Nonclassic congenital lipoid adrenal hyperplasia (lipoid CAH) is a recently recognized disorder caused by mutations in the steroidogenic acute regulatory protein (StAR) that retain partial function.
Miller, W. L., Lang-Muritano, M., Soccio, R. E., Miller, W L, Sahakitrungruang, T, Walker, J. M., Miller, WL, Walker, J M, Achermann, J. C., Achermann, JC, Lang-Muritano, M, Sahakitrungruang, T., Achermann, J C, Walker, JM, Soccio, R E, Soccio, RE   +15 more
core   +1 more source

Damping Obliquities of Hot Jupiter Hosts by Resonance Locking

The Astrophysical Journal Letters
When orbiting hotter stars, hot Jupiters are often highly inclined relative to their host star equator planes. By contrast, hot Jupiters orbiting cooler stars are more aligned.
J. J. Zanazzi, Janosz Dewberry, Eugene Chiang   +2 more
doaj   +1 more source

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

Advanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source