The Fornax Cluster VLT Spectroscopic Survey
- Vol. 657, pp A93-A93
TLDR
In this paper , the authors used the VLT/VIMOS spectroscopic data from the FVSS survey in the Fornax cluster, covering one square degree around the central massive galaxy NGC 1399.Abstract:
The Fornax cluster provides an unparalleled opportunity to investigate in detail the formation and evolution of early-type galaxies in a dense environment. We aim at kinematically characterizing photometrically detected globular cluster (GC) candidates in the core of the cluster. We used the VLT/VIMOS spectroscopic data from the FVSS survey in the Fornax cluster, covering one square degree around the central massive galaxy NGC 1399. We confirmed a total of 777 GCs, almost doubling the previously detected GCs, using the same dataset by Pota et al. (2018). Combined with previous literature radial velocity measurements of GCs in Fornax, we compiled the most extensive spectroscopic GC sample of 2341 objects in this environment. We found that red GCs are mostly concentrated around major galaxies, while blue GCs are kinematically irregular and are widely spread throughout the core region of the cluster. The velocity dispersion profiles of blue and red GCs show a quite distinct behaviour. Blue GCs exhibit a sharp increase in the velocity dispersion profile from 250 to 400km/s within 5 arcminutes (29 kpc/1 reff of NGC 1399) from the central galaxy. The velocity dispersion profile of red GCs follows a constant value in between 200-300km/s until 8 arcminutes (46 kpc/1.6reff), and then rises to 350km/s at 10 arcminutes (58 kpc/2 reff). Beyond 10 arcminutes and out to 40 arcminutes (230 kpc/8 reff), blue and red GCs show a constant velocity dispersion of 300+/-50km/s, indicating that both GC populations are tracing the cluster potential. We have kinematically confirmed and characterized the previously photometrically discovered overdensities of intra-cluster GCs. We found that those substructured intra-cluster regions in Fornax are dominated mostly by blue GCs. read more
Citations
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Fornax3D project: Assembly history of massive early-type galaxies in the Fornax cluster from deep imaging and integral field spectroscopy
Marilena Spavone,Enrichetta Iodice,Giuseppe D'Ago,Glenn van de Ven,Lorenzo Morelli,Enrico Maria Corsini,Marc Sarzi,Lodovico Coccato,Katja Fahrion,J. Falc'on-Barroso,Dimitri A. Gadotti,Mariya Lyubenova,I. Mart'in-Navarro,Richard M. McDermid,F. Pinna,Alessandro Pizzella,A. Poci,P. T. de Zeeuw +17 more
TL;DR: In this paper , the authors investigated the variation of the galaxy structural properties as a function of the total stellar mass and cluster environment, and correlated the size scales of the luminous components derived from a multi-component decomposition of the surface-brightness radial profiles of the sample ETGs with the MUSE radial profiles of stellar kinematic and population properties.
Journal ArticleDOI
Kinematics of the diffuse intragroup and intracluster light in groups and clusters of galaxies in the local universe within 100 Mpc distance
Magda Arnaboldi,Ortwin Gerhard +1 more
TL;DR: In this paper , the physical properties of the ICL and ICL components of the groups and clusters in the local universe, within 100 Mpc distance, were studied, focusing on phase space properties, metallicity and age distribution.
Journal ArticleDOI
Constraining the shape of dark matter haloes with globular clusters and diffuse stellar light in the E-MOSAICS simulations
TL;DR: In this paper , the authors explore how diffuse stellar light and globular clusters (GCs) can be used to trace the matter distribution of their host halo using an observational methodology.
Journal ArticleDOI
Properties of Globular Clusters in Galaxy Clusters: Sensitivity from the Formation and Evolution of Globular Clusters
TL;DR: In this article , the properties of globular clusters (GCs) in a galaxy cluster were investigated using the particle tagging method with a semianalytical approach in a cosmological context.
Journal ArticleDOI
Spatial Structures in the Globular Cluster Distribution of Fornax Cluster Galaxies
Raffaele D'Abrusco,David Zegeye,Giuseppina Fabbiano,Michele Cantiello,Maurizio Paolillo,Andreas Zezas +5 more
TL;DR: In this article , statistically significant spatial structures in the projected two-dimensional distributions of Globular Cluster (GC) systems of 10 galaxies that are among the brightest in the Fornax Cluster.
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