Results 111 to 120 of about 628,144 (303)
Formation Channels for Blue Straggler Stars [PDF]
, 2014 In this chapter we consider two formation channels for blue straggler stars: 1) the merger of two single stars via a collision, and 2) those produced via mass transfer within a binary. We review how computer simulations show that stellar collisions are likely to lead to relatively little mass loss and are thus effective in producing a young population ...
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A Generative Framework for Predicting Antiferromagnets
Advanced Science, EarlyView.This work establishes a design paradigm for antiferromagnets (AFM), accelerating next‐generation spintronic material discovery. By integrating a crystal diffusion variational autoencoder with data augmentation, crystal graph convolutional neural networks, and a genetic algorithm, latent vectors are updated toward AFM property spaces, expanding ...
Jianhu Gong +5 more
wiley +1 more source
Advanced Science, EarlyView.Dual spin‐orbit torque coming from two Pt layers effectively drives the magnetic domain wall motion (DWM) in a synthetic antiferromagnet consisting of two Co ferromagnetic layers coupled with interlayer exchange coupling (IEC). In addition, the antisymmetric version of IEC leads to low current density for nucleating DW and fast velocity of DWM ...
Hiroto Masuda +9 more
wiley +1 more source
Modeling the radial distribution of blue stragglers in M3
The Astrophysical Journal, 1994 Recent surveys of the blue straggler (BS) population in the galactic globular cluster M3 (NGC 5272) give the first complete characterization of the number density of BSs as a function of radius over an entire globular cluster. The BSs in M3 are overabundant at large radii, and significantly underabundant at intermediate radii.
Steinn Sigurdsson +2 more
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VO2 Oscillator Circuits Optimized for Ultrafast, 100 MHz‐Range Operation
Advanced Electronic Materials, EarlyView.The present study demonstrates ultrasmall (≈30 nm) VO2 Mott memristor‐based oscillators which enter the >100 MHz frequency range via device scaling and optimization of the circuit layout for high frequency operation. Time‐resolved investigation of switching dynamics along with circuit‐level and physics‐based electrothermal simulations identify physical
Zsigmond Pollner +11 more
wiley +1 more source
An Unexpected Detection of Bifurcated Blue Straggler Sequences in the Young Globular Cluster NGC 2173 [PDF]
, 2018 The bifurcated patterns in the color–magnitude diagrams of blue straggler stars (BSSs) have attracted significant attention. This type of special (but rare) pattern of two distinct blue straggler sequences is commonly interpreted as evidence that cluster
Chengyuan Li +4 more
semanticscholar +1 more source
Advanced Intelligent Systems, EarlyView.This study presents a compact freeform projection optics using dual wedge prisms for waveguide displays. Unlike previous designs that separate illumination and imaging paths, a freeform optical path integrates both. The system achieves a 32º field of view, 37.5 pixels per degree, and a total volume of less than 2 cm3.
Ximeng Wang +5 more
wiley +1 more source
The spectra and ages of blue stragglers
The Astrophysical Journal, 1985 A mechanism similar to Wheeler's quasi-homogeneous evolution and Finzi and Wolf's proposal for blue stragglers is proposed as the origin of the blue stragglers in intermediate-age clusters. Blue stragglers are stars whose positions in color-magnitude diagrams of open and globular clusters are significantly above the turn-off points and in the region of
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The origin of the two populations of blue stragglers in M30 [PDF]
Astronomy & Astrophysics, 2019 We analyze the position of the two populations of blue stragglers in the globular cluster M30 in the Hertzsprung–Russell diagram. Both populations of blue stragglers are brighter than the cluster’s turn-off, but one population, the blue blue-stragglers, aligns along the zero-age main sequence whereas the other, red population is elevated in brightness (
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Advanced Intelligent Systems, EarlyView.A Monte Carlo simulation framework is introduced to predict the folding behavior of sequence‐encoded magnetic microrobots, enabling systematic exploration of their design space. By mapping key metrics such as radius of gyration and symmetry, the framework identifies functional sequences and predicts actuation behaviors.
Collin C. Kemper +5 more
wiley +1 more source