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Related papers: Globular Cluster Systems in the Hydra I Galaxy Clu…

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Globular cluster systems exhibit a bewildering variety of characteristics. No single scenario appears to be able to account for the wide range of specific globular cluster frequencies that are observed in galaxies of various types. The…

Astrophysics · Physics 2009-10-31 Sidney van den Bergh

We compare the properties of the globular clusters around NGC 1399, NGC 1404 and NGC 1380, the three brightest early-type galaxies in the center of the Fornax galaxy cluster. The globular cluster systems are qualitatively very similar,…

Astrophysics · Physics 2007-05-23 Markus Kissler-Patig

We have obtained deep photometry of NGC 1199 (in HCG 22) and NGC 6868 (in the Telescopium group). Both galaxies are the optically brightest galaxies of their groups. Our analysis of B and R images taken with the Keck II and the VLT/ESO…

Astrophysics · Physics 2009-11-06 C. Da Rocha , C. Mendes de Oliveira , M. Bolte , B. L. Ziegler , T. H. Puzia

Diffuse intracluster light (ICL) and cD galaxy halos are believed to originate from galaxy evolution and disruption. We present a kinematic study of the ICL in the Hydra I cluster core, using planetary nebulas (PNs) as tracers. We used…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 G. Ventimiglia , M. Arnaboldi , O. Gerhard

We report the discovery of 4 candidate intracluster globular clusters (IGCs) in a single deep HST ACS field of the Virgo Cluster. We show that each cluster is roughly spherical, has a magnitude near the peak of the Virgo globular cluster…

We have compiled data for the globular cluster systems of 50 galaxies from the HST WFPC2 archive, of which 43 are type S0 or earlier. In this paper, we present the data set and derive the V-I color distributions. We derive the first four…

Astrophysics · Physics 2009-10-31 Karl Gebhardt , Markus Kissler-Patig

Deep imaging data from the Keck II telescope are employed to study the globular cluster (GC) populations in the cores of six rich Abell clusters. The sample includes A754, A1644, A2124, A2147, A2151, and A2152, and spans the redshift range…

Astrophysics · Physics 2009-10-31 John P. Blakeslee

We used FORS2 in MXU mode to mimic a coarse 'IFU' in order to measure the 3D large-scale kinematics around the central Hydra I cluster galaxy NGC 3311. Our data show that the velocity dispersion field varies as a function of radius and…

We have discovered three globular clusters beyond the Holmberg radius in Hubble Space Telescope Advanced Camera for Surveys images of the gas-rich dark matter dominated blue compact dwarf galaxy NGC2915. The clusters, all of which start to…

We present new (B,I) photometry for the globular cluster systems in eight Brightest Cluster Galaxies (BCGs), obtained with the ACS/WFC camera on the Hubble Space Telescope. In the very rich cluster systems that reside within these giant…

Astrophysics · Physics 2009-11-13 W. E. Harris , B. C. Whitmore , D. Karakla , W. Okon , W. A. Baum , D. A. Hanes , J. J. Kavelaars

Aims. We aim to investigate the stellar population properties, ages, and metal content of the globular clusters (GCs) in NGC 3311, the central galaxy of the Hydra I cluster, to better constrain its evolution history. Methods. We used…

Context. We investigate the stellar population and the origin of diffuse light around brightest cluster galaxies. Aims. We study the stellar population of the dynamically hot stellar halo of NGC 3311, the brightest galaxy in the Hydra I…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 L. Coccato , O. Gerhard , M. Arnaboldi , G. Ventimiglia

The formation of intracluster light and of the extended halos around brightest cluster galaxies is closely related to morphological transformation, tidal stripping, and disruption of galaxies in clusters. We analyze Ks- and V-band surface…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Magda Arnaboldi , Giulia Ventimiglia , Enrica Iodice , Ortwin Gerhard , Lodovico Coccato

Properties of 53 globular cluster systems are investigated. Strong correlations are found between parent galaxy luminosity and both the slope of the radial density profile for clusters and the width of the cluster color (metallicity)…

Astrophysics · Physics 2009-10-30 Sidney van den Bergh

A large number of early type galaxies are now known to possess blue and red subpopulations of globular clusters. We have compiled a database of 28 such galaxies exhibiting bimodal globular cluster colour distributions. After converting to a…

Astrophysics · Physics 2009-10-31 Duncan A. Forbes , Juan C. Forte

NGC 3311 is the central cD galaxy of the Hydra I cluster. We use globular clusters around NGC 3311, combined with kinematical data of the galaxy itself, to investigate the dark matter distribution in the central region of Hydra I. Radial…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 T. Richtler , R. Salinas , I. Misgeld , M. Hilker , G. K. T. Hau , A. J. Romanowsky , Y. Schuberth , M. Spolaor

We present a new catalog of 81 ancient globular clusters (GCs) in the early-type spiral (SB0/a) galaxy NGC 1291. Candidates have been selected from B,V, and I band images taken with the Hubble Space Telescope, which also reveal 17 younger…

Astrophysics of Galaxies · Physics 2022-06-01 Kyle Hixenbaugh , Rupali Chandar , Angus Mok

Using a cosmological dark matter simulation of a galaxy-cluster halo, we follow the temporal evolution of its globular cluster population. To mimic the red and blue globular cluster populations, we select at high redshift $(z\sim 1)$ two…

Astrophysics of Galaxies · Physics 2018-02-07 Felipe Ramos-Almendares , Mario G. Abadi , Hernán Muriel , Valeria Coenda

We present a study of the globular cluster systems of four early-type poststarburst galaxies using deep g and I-band images from the ACS camera aboard the Hubble Space Telescope (HST). All the galaxies feature shells distributed around…

New and archival HST images of the globular cluster systems of 17 relatively nearby galaxies and 6 more distant galaxies have been used to establish the characteristics of GC subpopulations over a range of host galaxy morphological type…

Astrophysics · Physics 2007-05-23 Jean P. Brodie