Results 81 to 90 of about 151,167 (221)

Field Blue Stragglers and Related Mass Transfer Issues [PDF]

, 2014
This chapter contains my impressions and perspectives about the current state of knowledge about field blue stragglers (FBS) stars, drawn from an extensive literature that I searched. I conclude my review of issues that attend FBS and mass transfer, by a brief enumeration of a few mildly disquieting observational facts.
arxiv   +1 more source

Blue Stragglers After the Main Sequence [PDF]

Astrophys.J.692:1411-1420,2009, 2008
We study the post-main sequence evolution of products of collisions between main sequence stars (blue stragglers), with particular interest paid to the horizontal branch and asymptotic giant branch phases. We found that the blue straggler progeny populate the colour-magnitude diagram slightly blueward of the red giant branch and between 0.2 and 1 ...
arxiv   +1 more source

Manipulation of Ferroic Orders via Continuous Biaxial Strain Engineering in Multiferroic Bismuth Ferrite

Advanced Science, EarlyView.
This study explores the evolution of ferroelectric (FE) and antiferromagnetic (AFM) orders in freestanding BiFeO3 films under anisotropic strain using rotational anisotropy second harmonic generation (RA‐SHG) and first‐principles calculations. The research reveals reversible control of in‐plane FE polarization and significant AFM order rotation ...
Jiesu Wang, Shuai Xu, Sebastian Meyer, Shiyao Wu, Subhadeep Bandyopadhyay, Xu He, Qiyuan Miao, Sisi Huang, Pengzhan Li, Kun Zhao, Er‐Jia Guo, Chen Ge, Bertrand Dupé, Philippe Ghosez, Kai Chang, Kuijuan Jin   +15 more
wiley   +1 more source

Exotic asphyxiation: interactions between invasive species and hypoxia

Biological Reviews, Volume 98, Issue 1, Page 150-167, February 2023., 2023
ABSTRACT Non‐indigenous species (NIS) and hypoxia (<2 mg O2 l−1) can disturb and restructure aquatic communities. Both are heavily influenced by human activities and are intensifying with global change. As these disturbances increase, understanding how they interact to affect native species and systems is essential.
James E. Byers, Julie A. Blaze, Alannah C. Dodd, Hannah L. Hall, Paul E. Gribben   +4 more
wiley   +1 more source

Contribution of primordial binary evolution to the two blue-straggler sequences in globular cluster M30 [PDF]

, 2017
Two blue-straggler sequences discovered in globular cluster M30 provide a strong constraint on the formation mechanisms of blue stragglers. We study the formation of the blue-straggler binaries through binary evolution, and find that binary evolution can contribute to the blue stragglers in both of the sequences.
arxiv   +1 more source

Blue stragglers in star clusters and the conventional SSP models [PDF]

Proceedings of the International Astronomical Union, 2009
AbstractThe presence of blue straggler stars (BSs) as secure members of star clusters poses a major challenge to the conventional picture of simple stellar population (SSP) models. The models are based on the stellar evolution theory of single stars, while the major formation mechanisms of BSs are all correlated with stellar interactions.
Yu Xin, Pavel Kroupa, Licai Deng, Richard de Grijs   +3 more
openaire   +2 more sources

Correlations in Magnetic Sub‐Domains as an Unconventional Phase Diagram for van der Waals Ferromagnets

Advanced Science, EarlyView.
An unconventional magnetic order is observed in exfoliated CrBr3 layers, characterized by vertically correlated planar magnetic sub‐domains. Magnetic force microscopy, ab initio calculations, and micromagnetic simulations indicate that these sub‐domains arise from stacking faults modifying interlayer exchange coupling.
Sergey Y. Grebenchuk, Magdalena Grzeszczyk, Zhaolong Chen, Makars Šiškins, Vladislav Borisov, Manuel Pereiro, Mikhail I. Katsnelson, Olle Eriksson, Kostya S. Novoselov, Maciej Koperski   +9 more
wiley   +1 more source

Agile Free‐Form Signal Filtering and Routing with a Chaotic‐Cavity‐Backed Non‐Local Programmable Metasurface

Advanced Science, EarlyView.
A multi‐parameter‐tunable, all‐metallic, low‐loss, wave‐chaotic cavity enables a frequency‐insensitive (over a 7 GHz bandwidth) technique to synthesize desired transfer functions within smaller windows to high accuracy and with complete reconfigurability of shapes and center frequencies.
Fabian T. Faul, Laurent Cronier, Ali Alhulaymi, A. Douglas Stone, Philipp del Hougne   +4 more
wiley   +1 more source

WIYN Open Cluster Study. XC. Radial-velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 2506

The Astronomical Journal
NGC 2506 is a rich, intermediate-age (2.0 Gyr), metal-poor ([Fe/H] ∼ −0.2) open cluster. This work presents the results of 12,157 spectroscopic radial-velocity measurements of 2442 stars in the NGC 2506 field obtained over 41 yr, made as part of the WIYN
Evan Linck, Robert D. Mathieu, David W. Latham   +2 more
doaj   +1 more source

Recent Advances in Enhancing the Sensitivity of Biosensors Based on Field Effect Transistors

Advanced Electronic Materials, EarlyView.
This paper discusses the methods to enhancing the detection sensitivity of biosensors in three aspects: overcoming the influence of Debye shielding effects, promoting the binding efficiency of analytes and transistor surface, and improving the structures of device.
Yuying Zhou, Tongshi Feng, Yao Li, Xiang Ao, Shengfa Liang, Xiaonan Yang, Lingfei Wang, Xiaoxin Xu, Wenchang Zhang   +8 more
wiley   +1 more source