Results 141 to 150 of about 2,000,138 (297)

Wandering globular clusters: the first dwarf galaxies in the universe?

open access: yes, 2010
In the last decade we witness an advent of new types of dwarf stellar systems in cluding ultra-compact dwarfs, ultra-faint dwarf spheroidals, and exotic globular clusters, breaking the old simple paradigm for dwarf galaxies and globular clusters.
Adelman-McCarthy   +21 more
core   +1 more source

THE NEXT GENERATION VIRGO CLUSTER SURVEY. VIII. THE SPATIAL DISTRIBUTION OF GLOBULAR CLUSTERS IN THE VIRGO CLUSTER [PDF]

open access: yes, 2014
We report on a large-scale study of the distribution of globular clusters (GCs) throughout the Virgo cluster, based on photometry from the Next Generation Virgo Cluster Survey (NGVS), a large imaging survey covering Virgo's primary subclusters (Virgo A =
P. Durrell   +23 more
semanticscholar   +1 more source

Evidence for an accretion origin for the outer halo globular cluster system of M31

open access: yes, 2010
We use a sample of newly-discovered globular clusters from the Pan-Andromeda Archaeological Survey (PAndAS) in combination with previously-catalogued objects to map the spatial distribution of globular clusters in the M31 halo. At projected radii beyond ~
Bellazzini   +23 more
core   +1 more source

The Colors of Dwarf Elliptical Galaxy Globular Cluster Systems, Nuclei and Stellar Halos

open access: yes, 2004
We present the results of a Hubble Space Telescope WFPC2 F555W and F814W survey of 69 dwarf elliptical galaxies (dEs) in the Virgo and Fornax Clusters and Leo Group.
Arimoto N.   +10 more
core   +1 more source

SIZES OF GALACTIC GLOBULAR CLUSTERS [PDF]

open access: yesThe Astrophysical Journal, 2012
A study is made of deviations from the mean power-law relationship between the Galactocentric distances and the half-light radii of Galactic globular clusters. Surprisingly, deviations from the mean R_h versus R_gc relationship do not appear to correlate with cluster luminosity, cluster metallicity, or horizontal branch morphology. Differences in orbit
openaire   +4 more sources

One Piece at a Time—Adding to the Puzzle of S0 Formation

open access: yesGalaxies, 2017
Understanding the origin of galaxies remains a topic of debate in the current astronomy. In this work, we have focused on lenticular (S0) galaxies located in low-density environments, using their associated globular cluster (GC) systems as a tool ...
Carlos Escudero   +2 more
doaj   +1 more source

Metallicity of Globular Cluster M13 from VI CCD Photometry [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2000
From the VI images of M13, obtained by using 2K CCD camera and the BOAO 1.8m telescope, we derive the (V-I)-V CMD of M13. From the shapes of red giant branch, the magnitude of horizontal branch, and the giant branch bump on the constructed CMD, we ...
Young-Jong Sohn
doaj  

Globular Clusters in Nearby Galaxy Clusters [PDF]

open access: yes, 2006
6 pages, 4 figures, to appear in Proceedings of the ESO Workshop on "Extragalactic Globular Cluster Systems", ed. M. Kissler-Patig, Springer Verlag (2002)
openaire   +3 more sources

Discovery of > 200 RR Lyrae Variables in M62: An Oosterhoff I Globular Cluster with a Predominantly Blue HB

open access: yes, 2005
We report on the discovery of a large number of RR Lyrae variable stars in the moderately metal-rich Galactic globular cluster M62 (NGC 6266), which places it among the top three most RR Lyrae-rich globular clusters known.
Arellano Ferro A.   +11 more
core   +1 more source

A supra-massive population of stellar-mass black holes in the globular cluster Palomar 5. [PDF]

open access: yesNat Astron, 2021
Gieles M   +4 more
europepmc   +1 more source

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