Results 151 to 160 of about 55,703 (289)

The Discovery of Two Quadruple Star Systems with the Second and Third Shortest Outer Periods

The Astrophysical Journal
We present the discovery of two quadruple star systems—TIC 285853156 and TIC 392229331—each consisting of two bound eclipsing binary stars. Among the most compact quadruples known, TIC 392229331 and TIC 285853156 have the second and third shortest outer ...
Brian P. Powell, Guillermo Torres, Veselin B. Kostov, Tamás Borkovits, Saul A. Rappaport, Maxwell Moe, David W. Latham, Thomas L. Jacobs, Robert Gagliano, Martti H. K. Kristiansen, Mark Omohundro, Hans M. Schwengeler, Daryll M. LaCourse, Ivan A. Terentev, Allan R. Schmitt   +14 more
doaj   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

Advanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari, Gokul Bhaskaran, Krishan Kumar, Yun Suk Huh, Young‐Kyu Han   +4 more
wiley   +1 more source

Kinematics of Wolf–Rayet Stars in the LMC: Clues to Subtype Origins

The Astrophysical Journal
We measure transverse proper-motion velocities of LMC Wolf–Rayet stars using Gaia DR3 astrometry. The combined velocity distribution of WNh, O If*/WN, and late-type WN (WNL) very massive stars (>100 M _⊙ ; VMS) shows both slow, unejected objects ( v _⊥   
Caden Burkhardt, Fiona Han, M. S. Oey, Natalia Ivanova, Mathieu Renzo   +4 more
doaj   +1 more source

Magnetic field detections in massive systems at different stages of interaction

Astronomy & Astrophysics
Context. Despite the importance of magnetic fields in massive stars, their origin is widely debated and still not well understood. Aims. With the mounting evidence for the importance of studying magnetic fields in interacting massive binary and multiple ...
Hubrig S., Abdul-Masih M., Järvinen S. P., Cikota A., Schöller M., Ilyin I., Escorza A.   +6 more
doaj   +1 more source

The Interactive Modeling of a Binary Star System

, 2022
An interactive binary star system simulation was developed to be showcased on an educational platform. The main purpose of the project is to provide insight into the orbital mechanics of such star systems with the help of a three-body simulation. The initial simulation script was written in the Python programming language with the help of the VPython ...
Dedeler, Ayse Pelin, Soytekin, Canberk
openaire   +1 more source

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

Advanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang, Muhammad Adib Abdillah Mahbub, Bashir Eid, Thomas Quast, Jian Zhang, Ridha Zerdoumi, Xin Wang, Sabine Seisel, Wangcheng Zhan, Wolfgang Schuhmann   +9 more
wiley   +1 more source

Electrodynamics and Dissipation in the Binary Magnetosphere of Premerger Neutron Stars

The Astrophysical Journal Letters
We investigate the energy release in the interacting magnetospheres of binary neutron stars (BNSs) with global 3D force-free electrodynamics simulations.
Jens F. Mahlmann, Andrei M. Beloborodov
doaj   +1 more source

Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation

Advanced Functional Materials, EarlyView.
Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu, Joel Aboagye, Marcella Edwards, Nick Rogozinski, Yufeng Wen, Angello Huerta Gomez, Zui Pan, Ge Zhang, Huaxiao Yang, Yi Hong   +9 more
wiley   +1 more source

Expansion of Accreting Main-sequence Stars during Rapid Mass Transfer

The Astrophysical Journal Letters
Accreting main-sequence stars expand significantly when the mass accretion timescale is much shorter than their thermal timescales. This occurs during mass transfer from an evolved giant star onto a main-sequence companion in a binary system and is an ...
Mike Y. M. Lau, Ryosuke Hirai, Ilya Mandel, Christopher A. Tout   +3 more
doaj   +1 more source