Comprehensive Analysis of NGC 6134: Structure, Dynamics, and Blue Straggler Star Candidates
The Astrophysical Journal Supplement SeriesOpen clusters play a critical role in the study of both stellar and Galactic evolution. We present a comprehensive analysis of the open cluster NGC 6134 using Gaia DR3 astrometric and photometric data, supplemented with multiwavelength observations from ...
Dexin Zeng +4 more
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The blue stragglers of Omega Centauri
The Astrophysical Journal, 1986 On a obtenu les spectres 3500-5000 A (resolution 3,6 A) de six candidats. Ils ne presentent aucune caracteristique inhabituelle. les vitesses radiales montrent que ces six vagabondes bleues appartiennent a l'amas.
G. S. Da Costa +2 more
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New Insight of Time-transformed Symplectic Integrator. I. Hybrid Methods for Hierarchical Triples
The Astrophysical JournalAccurate N -body simulations of multiple systems such as binaries and triples are essential for understanding the formation and evolution of interacting binaries and binary mergers, including gravitational wave sources, blue stragglers, and X-ray ...
Long Wang
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The Astronomical JournalNGC 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 +2 more
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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
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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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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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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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The Unreasonable Effectiveness of the nΣv Approximation
The Astrophysical JournalIn kinetic theory, the classic n Σ v approach calculates the rate of particle interactions from local quantities: the number density of particles n , the cross section Σ, and the average relative speed v .
Elisha Modelevsky +2 more
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Straggler- and Adversary-Tolerant Secure Distributed Matrix Multiplication Using Polynomial Codes. [PDF]
Entropy (Basel), 2023 Byrne E, Gnilke OW, Kliewer J.
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