The cosmic evolution of binary black holes in young, globular, and nuclear star clusters: rates, masses, spins, and mixing fractions [PDF]
, 2022 The growing population of binary black holes (BBHs) observed by gravitational wave detectors is a potential Rosetta stone for understanding their formation channels. Here, we use an upgraded version of our semi-analytic codes fastcluster and cosmoRate to
Michela Mapelli +4 more
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Bound star clusters observed in a lensed galaxy 460 Myr after the Big Bang. [PDF]
NatureThe Cosmic Gems arc is among the brightest and highly magnified galaxies observed at redshift z ≈ 10.2 (ref. 1). However, it is an intrinsically ultraviolet faint galaxy, in the range of those now thought to drive the reionization of the Universe2–4 ...
Adamo A +27 more
europepmc +2 more sources
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 (2007) studied a sample of twenty globular clusters and found that all clusters with high concentrations have steep stellar mass-functions while clusters with low concentration have comparatively shallow mass ...
D'Agostino R. B. +9 more
core +2 more sources
MOCCA code for star cluster simulations – IV. A new scenario for intermediate mass black hole formation in globular clusters [PDF]
, 2015 We discuss a new scenario for the formation of intermediate mass black holes (IMBHs) in dense star clusters. In this scenario, IMBHs are formed as a result of dynamical interactions of hard binaries containing a stellar-mass black hole (BH), with other ...
Mirek Giersz +4 more
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Signatures of multiple stellar populations in unresolved extragalactic globular/ young massive star clusters [PDF]
, 2013 We present an investigation of potential signatures of the formation of multiple stellar populations in recently formed extragalactic star clusters.
Finzell, Thomas +2 more
core +3 more sources
The Globular Cluster Migratory Origin of Nuclear Star Clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 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 +4 more sources
Dynamical Evolution of the Mass Function of Globular Star Clusters [PDF]
, 2001 We present a series of simple, largely analytical models to compute the effects of disruption on the mass function of star clusters. Our calculations include evaporation by two-body relaxation and gravitational shocks and mass loss by stellar evolution ...
S. Michael Fall, Qing Zhang
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Nature, 1888 PHYSICAL aggregations of stars may be broadly divided into “globular” and “irregular” clusters. Although, as might have been expected, the line of demarcation between the two classes is by no means sharply drawn, each has its own marked peculiarities. We shall limit our attention, in the present article, to the first kind.
A. M. Clerke
semanticscholar +2 more sources
Globular cluster star classification: Application to M13
Serbian Astronomical Journal, 2013 Starting from recent determination of Fe, O, Na abundances on a restricted sample (N = 67) of halo and thick disk stars, a natural and well motivated selection criterion is defined for the classification globular cluster stars. An application is performed to M13 using a sample (N = 113) for which Fe, O, Na abundances have been recently ...
R. Caimmi
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