Results 71 to 80 of about 87,149 (376)

Star cluster formation and star formation: the role of environment and star-formation efficiencies [PDF]

open access: yes, 2008
“The original publication is available at www.springerlink.com”. Copyright Springer. DOI: 10.1007/s10509-009-0088-5By analyzing global starburst properties in various kinds of starburst and post-starburst galaxies and relating them to the properties of ...
A. Pasquali   +58 more
core   +2 more sources

THE SEQUENTIAL STAR FORMATION IN GLOBULAR CLUSTERS

open access: yesOdessa Astronomical Publications, 2008
The results of [O/Na] abundance modelling in globular clusters NGC 2808 and NGC 6752 are presented. The evolutionary scenario allowing to reproduce characteristic observed features of [O/Na] distribution function has been suggested.
M. V. Ryabova, Yu. A. Shchekinov
doaj   +1 more source

Multiple populations in globular clusters. Lessons learned from the Milky Way globular clusters

open access: yes, 2012
Recent progress in studies of globular clusters has shown that they are not simple stellar populations, being rather made of multiple generations. Evidence stems both from photometry and spectroscopy.
A Bellini   +359 more
core   +1 more source

Modeling Dense Star Clusters in the Milky Way and Beyond with the CMC Cluster Catalog [PDF]

open access: yesAstrophysical Journal Supplement Series, 2019
We present a set of 148 independent N-body simulations of globular clusters (GCs) computed using the code CMC (Cluster Monte Carlo). At an age of ∼10–13 Gyr, the resulting models cover nearly the full range of cluster properties exhibited by the Milky ...
K. Kremer   +8 more
semanticscholar   +1 more source

Star-Forming Galaxies at z~2 and the Formation of the Metal-Rich Globular Cluster Population

open access: yes, 2010
We examine whether the super star-forming clumps (R~1-3 kpc; M~10^8-10^9.5 Msun) now known to be a key component of star-forming galaxies at z~2 could be the formation sites of the locally observed old globular cluster population.
Armandroff   +71 more
core   +1 more source

Black holes: The next generation—repeated mergers in dense star clusters and their gravitational-wave properties [PDF]

open access: yesPhysical Review D, 2019
When two black holes merge in a dense star cluster, they form a new black hole with a well-defined mass and spin. If that "second-generation" black hole remains in the cluster, it will continue to participate in dynamical encounters, form binaries, and ...
C. Rodriguez   +6 more
semanticscholar   +1 more source

r-process Abundance Patterns in the Globular Cluster M92

open access: yesThe Astrophysical Journal, 2023
Whereas light-element abundance variations are a hallmark of globular clusters, there is little evidence for variations in neutron-capture elements. A significant exception is M15, which shows a star-to-star dispersion in neutron-capture abundances of at
Evan N. Kirby   +2 more
doaj   +1 more source

Variable stars in the globular cluster M 13 [PDF]

open access: yesAstronomy & Astrophysics, 2003
10 pages, 9 figures, 5 tables, accepted for publication in ...
Kopacki, G.   +2 more
openaire   +2 more sources

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser   +6 more
wiley   +1 more source

JWST/NIRCam Probes Young Star Clusters in the Reionization Era Sunrise Arc

open access: yesThe Astrophysical Journal, 2023
Star cluster formation in the early universe and its contribution to reionization remains largely unconstrained to date. Here we present JWST/NIRCam imaging of the most highly magnified galaxy known at z ∼ 6, the Sunrise arc.
Eros Vanzella   +29 more
doaj   +1 more source

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