Results 91 to 100 of about 3,660 (262)

Spin–Orbit Alignment of Early-type Astrometric Binaries and the Origin of Slow Rotators

The Astrophysical Journal
The spin–orbit alignment of binary stars traces their formation and accretion history. Previous studies of spin–orbit alignment have been limited to small samples, slowly rotating solar-type stars, and/or wide visual binaries that not surprisingly ...
Chase L. Smith, Maxwell Moe, Kaitlin M. Kratter   +2 more
doaj   +1 more source

Visual binaries among high-mass stars - An adaptive optics survey of OB stars in the NGC 6611 cluster [PDF]

, 2001
Gaspard Duchêne, T. Simon, J. Eislöffel, J. Bouvier   +3 more
openalex   +1 more source

Self‐Trapped Hole Migration and Defect‐Mediated Thermal Quenching of Luminescence in α‐ and β‐Ga2O3

Advanced Functional Materials, EarlyView.
Temperature‐dependent photoluminescence and first‐principles calculations reveal self‐trapped hole migration as the microscopic origin of thermal quenching in α‐ and β‐Ga2O3. The low migration barrier in α‐Ga2O3 enables defect trapping and enhances blue luminescence, while the higher barrier in β‐Ga2O3 preserves ultraviolet emission at elevated ...
Nima Hajizadeh, Ymir K. Frodason, Clemens Petersen, Benjamin M. Janzen, Luca Sung‐Min Choi, Nils Bernhardt, Felix Nippert, Zbigniew Galazka, Joel B. Varley, Holger von Wenckstern, Lasse Vines, Markus R. Wagner   +11 more
wiley   +1 more source

Fundamental Parameters for Central Stars of 103 Infrared Bow Shock Nebulae

The Astrophysical Journal
Stellar bow shock nebulae are arcuate shock fronts formed by the interaction of radiation-driven stellar winds and the relative motion of the ambient interstellar material.
Nikhil Patten, Henry A. Kobulnicky, Matthew S. Povich, Angelica S. Whisnant, Sydney Andrews, Alexandra Boone, Srujan Dandu, Naomi Jones, S. Nick Justice, Dylan Hope, Alexander Larsen, Ryan McCrory, Julia Meredith, Maria Renee Meza, Alexandra C. Rosenthal, William Salazar, Alexander R. Sterling, Noshin Yesmin, Daniel A. Dale   +18 more
doaj   +1 more source

A Systematic Search for New δ Scuti and γ Doradus Stars Using TESS Data

Universe
Focusing on the discovery of new δ Scuti and γ Doradus stars, we analyzed the Transiting Exoplanet Survey Satellite (TESS) light curves for 193,940 A-F stars selected from four legacy catalogs—the Henry Draper Catalogue (HD), the Smithsonian ...
Ai-Ying Zhou
doaj   +1 more source

Simultaneous least-squares adjustment of visual and spectroscopic observations of binary stars [PDF]

, 1998
D. Pourbaix
openalex   +1 more source

Hidden Companions to Intermediate-mass Stars. V. Discovery of a 1.6 M _⊙, 0.3 au Companion to Marfik within the 48 au Visual Binary HIP 80883 = λ Ophiuchi*

, 2023
Idel Waisberg, Ygal Klein, Boaz Katz
openalex   +1 more source

A Smart Magnetically Actuated Flip‐Disc Programmable Metasurface with Ultralow Power Consumption for Real‐Time Channel Control

Advanced Functional Materials, EarlyView.
The study proposes a 1‐bit programmable metasurface based on flip‐disc display, named flip‐disc metasurface (FD‐MTS). This new design enables ultralow energy consumption while maintaining coding patterns. It also exhibits high scalability and multifunctional flexibility.
Jiang Han Bao, Che Liu, Jia Cheng Li, Zhen Hao Fu, Yi Su Huang, Si Qi Huang, Lei Zhang, Jian Wei You, Tie Jun Cui   +8 more
wiley   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Unveiling Subarcsecond Multiplicity in the Pleiades with Gaia Multicolor Photometry

The Astronomical Journal
The list of 409 probable cluster members down to G = 15 ^mag ( m ≳ 0.5 M _⊙ ) is compiled for the two degree radius of the Pleiades, based on astrometric data from Gaia DR3 and the PPMXL catalog, along with several radial velocity surveys, including ...
Dmitry Chulkov
doaj   +1 more source