Results 61 to 70 of about 290 (259)

Weak In‐Plane Ferromagnetism and Electronic Nematicity in the Distorted Triple‐Q Magnetic Phase of Co1/3TaS2

open access: yesAdvanced Materials, EarlyView.
Co1/3TaS2${\rm Co}_{1/3}{\rm TaS}_{2}$ hosts a triple‐Q noncoplanar antiferromagnetic state with coexisting Z3${\rm Z}_3$ electronic nematicity. We report rotational hysteresis observed in both magnetoresistance and magnetic torque, revealing strongly pinned in‐plane weak ferromagnetic moments in the triple‐Q phase and the magnetism‐driven nature of ...
Joonyoung Choi   +5 more
wiley   +1 more source

Models of Individual Blue Stragglers [PDF]

open access: yes, 2014
Chapter 12, in Ecology of Blue Straggler Stars, H.M.J. Boffin, G. Carraro & G.
openaire   +2 more sources

Lead Halide Perovskite Photoelectrocatalysis

open access: yesAdvanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Characterization of Blue and Yellow Straggler Stars of Berkeley 39

open access: yesThe Astronomical Journal
We characterize blue straggler stars (BSSs) and yellow straggler stars (YSSs) of the open cluster (OC) Berkeley 39 using multiwavelength observations including the Swift/Ultraviolet and Optical Telescope (UVOT). Our analysis also makes use of ultraviolet
Komal Chand   +3 more
doaj   +1 more source

A blue-straggler merger scenario origin for the γ Persei binary system

open access: yesAstronomy & Astrophysics
We used MIST isochrone fitting and a dedicated grid of stellar evolution models computed with MESA to constrain the ages of the components of the γ Persei binary system.
Tarczay-Nehéz Dóra   +2 more
doaj   +1 more source

Electrically Coded Retinomorphic Spectrophotodetector

open access: yesAdvanced Materials, EarlyView.
Self‐powered retinomorphic pyro‐photodetector is demonstrated that avoids machine‐learning post‐processing and covers 365–940 nm. Electrostatic balancing of built‐in potential produces an electrical wavelength code, delivering <3 nm wavelength decoding accuracy with ∼46 µs response.
Mohit Kumar, Hyunmin Dang, Hyungtak Seo
wiley   +1 more source

UOCS XIV: Study of the Open Cluster NGC 2627 Using UVIT/AstroSat

open access: yesThe Astronomical Journal
We study the intermediate-age open cluster NGC 2627, located at a distance of ∼2 kpc, using UVIT/AstroSat and other archival data. Using a machine learning-based algorithm, ML-MOC, on the Gaia DR3 data, we identify 422 cluster members, including four ...
Pinapati Saketh   +2 more
doaj   +1 more source

A rotation-based census of blue lurker candidates in open clusters

open access: yesAstronomy & Astrophysics
Aims. We have compiled a list of blue lurker (BL) candidates in open clusters using the available rotation catalogs. Blue lurkers are rejuvenated main-sequence stars hidden among normal main-sequence stars on color-magnitude diagrams of star clusters. In
Jadhav Vikrant V.   +2 more
doaj   +1 more source

Human‐Scale Rotating Magnetic Field Delivery With Permanent Magnets Under Anatomic and Robotic Constraints

open access: yesAdvanced Robotics Research, EarlyView.
Rotating magnetic fields (RMFs) are widely used for microrobot propulsion and control. We show that RMF generation with permanent magnets is mechanically feasible for many limb and intracranial applications but becomes constrained for thoracic targets.
Tuan‐Anh Le   +4 more
wiley   +1 more source

Blue Straggler Stars in Old Open Clusters and the Kraft Break

open access: yesThe Astrophysical Journal Letters
We measure the projected rotational velocities ( $v\sin i$ ) of solar-like blue straggler stars (BSSs) in the old (≥4 Gyr) open clusters M67, NGC 188, and NGC 6791.
Evan Linck, Robert D. Mathieu
doaj   +1 more source

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