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Relativistic Binaries in Globular Clusters [PDF]
Living Reviews in Relativity, 2002 The galactic population of globular clusters are old, dense star systems, with a typical cluster containing $10^4 - 10^6$ stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects.
Benacquista Matthew
doaj +11 more sources
Intracluster Globular Clusters [PDF]
The Astrophysical Journal, 1995 Globular cluster populations of supergiant elliptical galaxies are known to vary widely, from extremely populous systems like that of UGC 9799, the centrally dominant galaxy in Abell 2052, to globular-cluster-poor galaxies such as NGC 5629 in Abell 2666.
Cote, Patrick +4 more
core +6 more sources
Secondary globular cluster populations [PDF]
Astronomy & Astrophysics, 2004 Peer ...
Fritze, U.
core +6 more sources
Advancing globular cluster constraints on the axion-photon coupling [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 We improve the current upper bound on the axion-photon coupling derived from stellar evolution using the R 2 parameter, the ratio of stellar populations on the Asymptotic Giant Branch to Horizontal Branch in Globular Clusters.
M. Dolan +2 more
semanticscholar +1 more source
A repeating fast radio burst source in a globular cluster [PDF]
Nature, 2021 Fast radio bursts (FRBs) are flashes of unknown physical origin1. The majority of FRBs have been seen only once, although some are known to generate multiple flashes2,3.
F. Kirsten +65 more
semanticscholar +1 more source
The Sausage Globular Clusters [PDF]
The Astrophysical Journal Letters, 2018 Abstract The Gaia Sausage is an elongated structure in velocity space discovered by Belokurov et al. using the kinematics of metal-rich halo stars. They showed that it could be created by a massive dwarf galaxy (∼5 × 1010 ) on a strongly radial orbit that ...
Sergey E. Koposov +5 more
openaire +6 more sources
Proper motions and dynamics of the Milky Way globular cluster system fromGaiaDR2 [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We use Gaia Data Release 2 to determine the mean proper motions for 150 Milky Way globular clusters (almost the entire known population), with a typical uncertainty of 0.05 mas/yr limited mainly by systematic errors. Combining them with distance and line-
E. Vasiliev
semanticscholar +1 more source
ROTATING GLOBULAR CLUSTERS [PDF]
The Astrophysical Journal, 2013 Internal rotation is considered to play a major role in the dynamics of some globular clusters. However, in only few cases it has been studied by quantitative application of realistic and physically justified global models. Here we present a dynamical analysis of the photometry and three-dimensional kinematics of omega Cen, 47 Tuc, and M15, by means of
P. Bianchini +3 more
openaire +4 more sources
Prospects for Detecting Fast Radio Bursts in the Globular Clusters of Nearby Galaxies
The Astrophysical Journal, 2023 The recent detection of a repeating fast radio burst (FRB) in an old globular cluster in M81 challenges traditional FRB formation mechanisms based on the magnetic activity of young neutron stars formed in core-collapse supernovae.
Kyle Kremer +4 more
doaj +1 more source
The Structure of Globular Clusters [PDF]
Symposium - International Astronomical Union, 1986 We report the preliminary results of a CCD surface photometry survey of a large fraction of all known Galactic globular clusters. About 1/5 of all surveyed clusters show a characteristic post-core-collapse (PCC) morphology. The PCC clusters are on average closer to the Galactic center than the King-model-like clusters.
Djorgovski, S. +4 more
openaire +6 more sources