Results 171 to 180 of about 24,968,366 (387)

The SPIRou Legacy Survey

Astronomy & Astrophysics
Context. M dwarfs are prime targets in the search for exoplanets because of their prevalence and because low-mass planets can be better detected with radial velocity (RV) methods. In particular, the near-infrared (NIR) spectral domain offers an increased
Ould-Elhkim M., Moutou C., Donati J.-F., Cortés-Zuleta P., Delfosse X., Artigau É., Cadieux C., Charpentier P., Carmona A., Boisse I., Reylé C., Gaidos E., Cloutier R., Hébrard G., Arnold L., do Nascimento J.-D., Cook N. J., Doyon R.   +17 more
doaj   +1 more source

TOWARD A DETERMINISTIC MODEL OF PLANETARY FORMATION. VI. DYNAMICAL INTERACTION AND COAGULATION OF MULTIPLE ROCKY EMBRYOS AND SUPER-EARTH SYSTEMS AROUND SOLAR-TYPE STARS [PDF]

, 2010
Shigeru Ida, D. N. C. Lin
openalex   +1 more source

The Kepler Follow-up Observation Program

, 2010
The Kepler Mission was launched on March 6, 2009 to perform a photometric survey of more than 100,000 dwarf stars to search for terrestrial-size planets with the transit technique. Follow-up observations of planetary candidates identified by detection of
Batalha, Natalie M., Borucki, William J., Buchhave, Lars A., Ciardi, David R., Cochran, William D., Dunham, Edward W., Endl, Michael, Furesz, Gabor, Gautier III, Thomas N., Howell, Steve B., Isaacson, Howard, Koch, David G., Latham, David W., MacQueen, Phillip, Mandushev, Georgi, Marcy, Geo? W., Walkowicz, Lucianne   +16 more
core  

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

Enhanced Stability in Planetary Systems with Similar Masses

The Astronomical Journal
This study employs numerical simulations to explore the relationship between the dynamical instability of planetary systems and the uniformity of planetary masses within the system, quantified by the Gini index.
Dong-Hong Wu, Sheng Jin, Jason H. Steffen   +2 more
doaj   +1 more source

Characterising planetary systems with SPIRou: Questions about the magnetic cycle of 55 Cnc A and two new planets around B★

Astronomy & Astrophysics
One of the first exoplanet hosts, discovered about thirty years ago, the star 55 Cnc has been continuously observed ever since. It is now known to host at least five planets with orbital periods ranging from 17 hours to 15 years.
Moutou C., Petit P., Charpentier P., Cristofari P., Baruteau C., Thébault P., Arnold L., Artigau E., Carmona A., Cook N. J., Debras F., Delfosse X., Donati J.-F., Malo L., Ould-Elhkim M.   +14 more
doaj   +1 more source

Planetary Nebulae as Probes of the Chemical Evolution of Dynamically Hot Systems [PDF]

, 2004
M. G. Richer, M. L. McCall
openalex   +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

Excitation and Propagation of Eccentricity Disturbances in Planetary Systems [PDF]

, 2004
Nadia L. Zakamska, Scott Tremaine
openalex   +1 more source

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

Advanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu, Chunlong Wang, Xiaohang Sun, Hongwei Guo, Jiayao Ma, Yan Chen   +5 more
wiley   +1 more source