Results 21 to 30 of about 300,999 (314)
Black Hole Mergers from Hierarchical Triples in Dense Star Clusters [PDF]
Astrophysical Journal, 2020 Hierarchical triples are expected to be produced by the frequent binary-mediated interactions in the cores of globular clusters. In some of these triples, the tertiary companion can drive the inner binary to merger following large eccentricity ...
Miguel A. S. Martinez +10 more
semanticscholar +1 more source
Missing for 20 yr: MeerKAT Redetects the Elusive Binary Pulsar M30B
The Astrophysical Journal Letters, 2023 PSR J2140−2311B is a 13 ms pulsar discovered in 2001 in a 7.8 hr Green Bank Telescope observation of the core-collapsed globular cluster M30 and predicted to be in a highly eccentric binary orbit.
Vishnu Balakrishnan +16 more
doaj +1 more source
The Globular Cluster Migratory Origin of Nuclear Star Clusters [PDF]
, 2014 Nuclear Star Clusters (NSCs) are often present in spiral galaxies as well as resolved Stellar Nuclei (SNi) in elliptical galaxies centres. Ever growing observational data indicate the existence of correlations between the properties of these very dense ...
M. Arca-Sedda, R. Capuzzo-Dolcetta
semanticscholar +1 more source
New Parameters for Star Cluster Dynamics: The Effect of Primordial Binaries and Dark Remnants
The Astrophysical Journal, 2023 By studying the normalized cumulative radial distribution (nCRD) of the stars in the central region of a Monte Carlo-simulated globular cluster, we recently defined three parameters able to pinpoint the stage of internal dynamical evolution reached by ...
B. Bhat +3 more
doaj +1 more source
Multiple Populations in Low-mass Globular Clusters: Eridanus
The Astrophysical Journal, 2023 Multiple populations (MPs), characterized by variations in light elemental abundances, have been found in stellar clusters in the Milky Way, Magellanic Clouds, as well as several other dwarf galaxies.
Yue Wang +7 more
doaj +1 more source
The influence of gas expulsion and initial mass segregation on the stellar mass function of globular star clusters [PDF]
, 2008 Recently, De Marchi, Paresce & Pulone studied a sample of 20 globular clusters and found that all clusters with high concentrations have steep stellar mass functions while clusters with low concentration have comparatively shallow mass functions.
M. Marks, P. Kroupa, H. Baumgardt
semanticscholar +1 more source
Star Clusters Near and Far [PDF]
, 2020 Star clusters are fundamental units of stellar feedback and unique tracers of their host galactic properties. In this review, we will first focus on their constituents, i.e.
A. Adamo +10 more
semanticscholar +1 more source
The Supersonic Project: Star Formation in Early Star Clusters without Dark Matter
The Astrophysical Journal Letters, 2023 The formation mechanism of globular clusters (GCs) has long been debated by astronomers. It was recently proposed that supersonically induced gas objects (SIGOs)–which formed in the early Universe due to the supersonic relative motion of baryons and dark
William Lake +9 more
doaj +1 more source
On the disc and halo of the milky way through a study of star clusters [PDF]
Serbian Astronomical Journal, 2000 The subject is the metallicity and the correlation between the metallicity and spatial distribution of star clusters of the Milky Way. The open star clusters are confirmed as good indicators for the population of the galactic disc, whereas the globular ...
Nagl M.
doaj +1 more source
Different Sodium enhancements among multiple populations of Milky Way globular clusters [PDF]
A&A 643, A77 (2020), 2020 We searched for trails to understand the different Na abundances measured in first and second generation stars of ancient Milky Way globular clusters. For that purpose, we gathered from the recent literature the aforementioned Na abundances, orbital parameters, structural and internal dynamical properties and ages in an homogeneous scale of 28 globular
arxiv +1 more source