Results 171 to 180 of about 185,159 (346)

Stellar and Ionized‐Gas Kinematics of the Seyfert 1 Galaxy NGC 3516 [PDF]

, 1997
S. Arribas, E. Mediavilla, B. García‐Lorenzo, C. del Burgo   +3 more
openalex   +1 more source

Spring and Power in Hovering Ornithopters

Advanced Intelligent Systems, EarlyView.
Only small ornithopters can hover, longest at the hummingbird size. This article reviews the drive and power of these hovering machines, focusing on elastic energy and thrust boosters. Unlike two‐winged designs, X‐winged and multiple‐V‐winged ornithopters benefit from lower disk loading and slower, smaller wingbeats, and the clap‐and‐fling effect ...
Gih‐Keong Lau, Yao‐Wei Chin, Shih‐Chun Lin, Yu‐Hsiang Lai, Boo Cheong Khoo   +4 more
wiley   +1 more source

Stellar kinematics in 30 Doradus

, 2001
Con espectroscopía multiranura de 180 estrellas en el cumulo ionizante de 30 Doradus, hemos obtenido velocidades radiales confiables para 58 estrellas. Con ellas, calculamos la dispersión de velocidades, la cual es de 35 km s-1. Si el cúmulo está relajado dinámicamente, la masa virial estimada es de ~ 1 x 107 M.
Bosch, Guillermo Luis, Terlevich, Roberto, Melnick, Jorge, Selman, Fernando   +3 more
openaire   +1 more source

zoomies: A Tool to Infer Stellar Age from Vertical Action in Gaia Data

The Astrophysical Journal
Stellar age measurements are fundamental to understanding a wide range of astronomical processes, including Galactic dynamics, stellar evolution, and planetary system formation. However, extracting age information from main-sequence stars is complicated,
Sheila Sagear, Adrian M. Price-Whelan, Sarah Ballard, Yuxi (Lucy) Lu, Ruth Angus, David W. Hogg   +5 more
doaj   +1 more source

Stellar Kinematics of Merging Galaxies: Clues to the Origins of Elliptical Galaxies [PDF]

, 1998
L. M. Shier, J. Fischer
openalex   +1 more source

Morphy: A Compliant and Morphologically Aware Flying Robot

Advanced Intelligent Systems, EarlyView.
This study presents Morphy, a 25.2 cm‐wide, 260 g aerial robot with flexible, sensorized joints that enable it to withstand high‐speed collisions and squeeze through narrow spaces. Powered by an adaptive control scheme exploiting real‐time morphology feedback, Morphy demonstrates resilience in trajectory tracking, collision, and impact recovery and ...
Paolo De Petris, Morten Nissov, Kostas Alexis   +2 more
wiley   +1 more source

When was the Large Magellanic Cloud accreted onto the Galaxy ?

, 2011
Using fully self-consistent N-body models for the dynamical evolution of the Large Magellanic Cloud (LMC) in the Galaxy, we show that if the LMC initially has an extended old stellar halo before its commencement of tidal interaction with the Galaxy ...
Bekki, Bekki, Bekki, Bekki, Benson, Besla, Boylan-Kolchin, Brück, Brüns, Chiba, Connors, Costa, Diaz, Freeman, Gallagher, Gardiner, Guhathakurta, Harris, Kallivayalil, Keller, Kenji Bekki, Li, Lux, Majewski, Mastropietro, Metz, Minniti, Murai, Muños, Navarro, Noël, Piatek, Saha, Subramaniam, Sugimoto, Vieira, Wetzel, Yoon, Yoshizawa, Zibetti   +39 more
core   +1 more source

Stellar and Ionized Gas Kinematics in the Circumnuclear Region of the Galaxy NGC 7331 [PDF]

, 1997
E. Mediavilla, S. Arribas, B. García‐Lorenzo, C. del Burgo   +3 more
openalex   +1 more source

Motion Capture and Augmented‐Reality‐Assisted Surface Reconstruction and Robotic Remanufacturing System

Advanced Intelligent Systems, EarlyView.
An virtual reality augmented‐reality‐ and motion‐capture‐assisted surface remanufacturing system is presented. Operators can interactively reconstruct the virtual model using the designed motion‐captured pointer directly on the physical workpiece surface. Operators can intuitively and interactively manipulate the system to accomplish tasks ranging from
Guoliang Liu, Wenlei Sun, Pinwen Li
wiley   +1 more source

The Next Generation Virgo Cluster Survey. XII. Stellar Populations and Kinematics of Compact, Low-Mass Early-Type Galaxies from Gemini GMOS-IFU Spectroscopy

, 2015
We present Gemini GMOS-IFU data of eight compact low-mass early-type galaxies (ETGs) in the Virgo cluster. We analyse their stellar kinematics, stellar population, and present two-dimensional maps of these properties covering the central 5"x 7" region ...
Blakeslee, John P., Cote, Patrick, Cuillandre, Jean-Charles, Durrell, Patrick R., Emsellem, Eric, Ferrarese, Laura, Guerou, Adrien, Gwyn, Stephen, MacArthur, Lauren A., McDermid, Richard M., Peng, Eric W.   +10 more
core   +1 more source