Results 91 to 100 of about 350 (246)
Identification of Blue Horizontal-branch Stars Using Synthetic SkyMapper Colors from Gaia XP Spectra
The Astrophysical Journal Supplement SeriesBlue horizontal-branch (BHB) stars are ideal tracers for mapping the structure of the Galactic stellar halo. Traditionally, BHB sample stars are built from large-scale spectroscopic surveys utilizing their spectral features; however, the resulting sample
Guozhen Hu +11 more
doaj +1 more source
Straggler- and Adversary-Tolerant Secure Distributed Matrix Multiplication Using Polynomial Codes. [PDF]
Entropy (Basel), 2023 Byrne E, Gnilke OW, Kliewer J.
europepmc +1 more source
Quiet activism as feminist practice
Feminist Anthropology, EarlyView.Abstract In this article, we discuss how women combat silencing in the face of violence and increased political turmoil through quiet activism in their day‐to‐day lives. Centering lengthy conversations with Arab women across London and notes from an ongoing collaboration with a feminist activist based in the US, we examine how wearable rhetorical ...
Vicky Panossian, Catherine A. Evans
wiley +1 more source
Merger of Noncompact Binaries: Triggering Mechanisms and Merger Timescales of W UMa Contact Binaries
The Astrophysical JournalThe merger of noncompact binaries can produce a variety of significant celestial objects, including blue stragglers, luminous red novae, and others. However, several key details of the merger of noncompact binaries remain unclear.
Dengkai Jiang +7 more
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Drivers and Challenges of Micro‐Irrigation Adoption and Intensity in India: A Study of Four States
Irrigation and Drainage, EarlyView.ABSTRACT India's food security relies substantially on groundwater, but inefficient irrigation is seriously depleting this resource. Micro‐irrigation (MI) improves irrigation application efficiency and productivity, yet adoption remains low. This study examines MI adoption across four major Indian states—Uttar Pradesh, Maharashtra, Madhya Pradesh and ...
Gurpreet Singh +2 more
wiley +1 more source
The Collision and Merger Products of Stars Do Not Look Alike: A Magnetohydrodynamics Comparison
The Astrophysical JournalA significant fraction of stars experience close interactions, including collisions resulting from gravitational encounters and mergers within close binary systems.
Pavan Vynatheya +4 more
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Journal of Heterocyclic Chemistry, EarlyView.A robust method for synthesizing substituted oxadiazepines and related heterocycles via intramolecular SNAr is detailed. Under mild conditions, this methodology has been leveraged to afford products of varying electronic and aryl nature in up to 99% yields.
Matthew W. Reeves +4 more
wiley +1 more source
Hidden Figures of Globular Clusters: Integrated Stellar Populations Impacted by Hot Subdwarfs
The Astrophysical JournalGlobular clusters (GCs) are fundamental for understanding the integrated light of old stellar populations and galaxy assembly processes. However, the role of hot, evolved stars, such as horizontal branch (HB), extreme HB, and blue stragglers, remains ...
Thayse A. Pacheco +10 more
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Journal of Raman Spectroscopy, EarlyView.Raman spectra containing D/G features are fit using combinations of basis functions and initial conditions. Fits with two Lorentzian functions converged to a single optimized fit even with variation of initial peak positions. For five‐band fits, sometimes the final fit varied with initial conditions, and constraints on peak center position were ...
David C. Doughty, Steven C. Hill
wiley +1 more source
Machine Learning Methods for Stellar Collisions. I. Predicting Outcomes of SPH Simulations
The Astrophysical JournalStellar collisions can occur frequently in dense cluster environments and play a crucial role in producing exotic phenomena, from blue stragglers in globular clusters to high-energy transients in galactic nuclei.
Elena González Prieto +9 more
doaj +1 more source