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Multispectral images segmentation using new fuzzy cluster centroid modified
(Institute of Electrical and Electronics Engineers Inc., 2017)
The presence of outliers, noise, corrupt pieces of data and great quantity of samples in a multispectral image, makes the segmentation analysis work tedious. The fuzzy clustering approach, specially, is susceptible to ...
Constraining the Redshift Evolution of First Radio Sources in RCS1 Galaxy Clusters
(2011)
We conduct a statistical analysis of the radio source population in galaxy clusters as a function of redshift by matching radio sources from the Faint Images of the Radio Sky at Twenty-Centimeters catalog with 618 optically ...
Intra-cluster globular clusters around NGC 1399 in Fornax?
(EDP Sciences, 2008-01)
We investigate whether the globular clusters (GCs) in the recently published sample of GCs in the Fornax cluster by Bergond and coworkers are indeed intra-cluster objects. Methods. We combine their catalogue of radial ...
A NEW METHOD TO QUANTIFY X-RAY SUBSTRUCTURES IN CLUSTERS OF GALAXIES
(IOP PUBLISHING LTDBRISTOL, 2012)
We present a new method to quantify substructures in clusters of galaxies, based on the analysis of the intensity of structures. This analysis is done in a residual image that is the result of the subtraction of a surface ...
Red sequence of Abell X-ray underluminous clusters
(Oxford University PressOxford, 2014)
We present an analysis of the colour–magnitude relation for a sample of 56 Abell X-ray
underluminous clusters. Our aim is to unveil properties that might elucidate the evolutionary
stages of the galaxy populations that ...
Spiral-like structure at the centre of nearby clusters of galaxies
(EDP SCIENCES S A, 2010)
Context. X-ray data analysis have found that fairly complex structures at cluster centres are more common than expected. Many of these structures have similar morphologies, which exhibit spiral-like substructure. Aims. It ...
Intra-cluster globular clusters around NGC 1399 in Fornax?
(2008)
Aims. We investigate whether the globular clusters (GCs) in the recently published sample of GCs in the Fornax cluster by Bergond and coworkers are indeed intra-cluster objects. Methods.We combine their catalogue of radial ...
Multi-Dimensional Clustering of Roles in the NBA
(ITESO, 2021)