52 citations · 431 across the 42 of their papers we have counts for
6 papers · 1 filter
A six-parameter space to describe galaxy diversification
Didier Fraix-Burnet, Tanuka Chattopadhyay, Asis Kumar Chattopadhyay +2
Galaxy diversification proceeds by transforming events like accretion, interaction or mergers. These explain the formation and evolution of galaxies that can now be described with…
Uncovering the formation of ultra-compact dwarf galaxies by multivariate statistical analysis
Tanuka Chattopadhyay, Margarita Sharina, Emmanuel Davoust +2
We present a statistical analysis of the properties of a large sample of dynamically hot old stellar systems, from globular clusters to giant ellipticals, which was performed in or…
Structures in the fundamental plane of early-type galaxies
Didier Fraix-Burnet, Magali Dugué, Tanuka Chattopadhyay +2
The fundamental plane of early-type galaxies is a rather tight three-parameter correlation discovered more than twenty years ago. It has resisted a both global and precise physical…
SAO-6m Telescope Spectroscopic Observations of Globular Clusters in Nearby Galaxies
Margarita E. Sharina, Rupali Chandar, Thomas H. Puzia +2
We present the results of medium-resolution spectroscopy of 28 globular clusters (GCs) in six nearby galaxies of different luminosities and morphological types, situated in: M33 (1…
Study of NGC 5128 Globular Clusters Under Multivariate Statistical Paradigm
Asis Kumar Chattopadhyay, Tanuka Chattopadhyay, Emmanuel Davoust +2
An objective classification of the globular clusters of NGC 5128 has been carried out by using a model-based approach of cluster analysis. The set of observable parameters includes…
Globular cluster content and evolutionary history of NGC147
Margarita Sharina, Emmanuel Davoust
We present the results of spectroscopic observations of eight globular cluster candidates in NGC147, a satellite dwarf elliptical galaxy of M31. Our goal is to make a complete inve…