Results 51 to 60 of about 139 (112)
Blue Stragglers in Low-Luminosity Star Clusters [PDF]
The Astrophysical Journal, 2005 13 pages, 3 figures, accepted to ApJ ...
openaire +2 more sources
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 +3 more
openaire +1 more source
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
doaj +1 more source
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
doaj +1 more source
Mergers via failed common envelope as a route toward intermediate-mass stripped stars
Astronomy & AstrophysicsStripped stars are a common product of binary stellar systems, spanning a wide mass range from Wolf-Rayet stars to hot subdwarfs and helium white dwarfs.
Picco A., Marchant P., Pauli D., Sana H.
doaj +1 more source
Searching for Variability in the Blue Straggler Star Region of the Globular Cluster NGC 6397
The Astronomical JournalWe studied stellar variability in the subgiant branch and blue straggler stars region of the globular cluster NGC 6397. The aim of this research is to identify and characterize new short-period, low-amplitude variable stars.
T. Cisternas-Araya +4 more
doaj +1 more source
Blue straggler stars in galactic open clusters
, 2021 Blue straggler stars (BSS) were originally identified in the color-magnitude diagram (CMD) of the globular cluster M3, where they defined an extension of the cluster main sequence, blueward and above the turnoff (TO). Among the variety of objects that populate stellar clusters, BSS are surely between those still presenting many puzzles to astronomers ...
openaire +2 more sources
The Astrophysical JournalBlue horizontal branch stars (BHBs), excellent distant tracers for probing the Milky Way’s halo density profile, are distinguished in the ${\left(g-r\right)}_{0}$ versus ( i − z ) _0 color space from another class of stars, blue straggler stars.
Fengqing Yu +11 more
doaj +1 more source
Astronomy & AstrophysicsContext. We present an observational and theoretical study of the complex stellar system S1082 in the open cluster M67. This system consists of at least four stars: a blue straggler in a 1.07-day eclipsing binary with a main sequence star (binary A) and ...
Quitral-Pierart Amanda A. +5 more
doaj +1 more source
An Analysis of Blue Straggler Stars in Open Clusters
Research Notes of the AASAbstract The presence of blue straggler stars (BSSs) in open clusters (OCs) presents an opportunity to study star formation and cluster dynamics. Our paper analyzes several properties of BSSs across 161 OCs of different ages, metallicities, and sizes.
Andrew Harvey +2 more
openaire +1 more source