11 citations · 18 across the 3 of their papers we have counts for
4 papers
Cosmic history of integrated galactic stellar initial mass function : a simulation study
Tanuka Chattopadhyay, Tuli De, Bharat Warlu +1
Theoretical and indirect observational evidences suggest that stellar initial mass function (IMF) increases with redshift. On the other hand star formation rates (SFR) may be as hi…
Use of spatial cross correlation function to study formation mechanism of massive elliptical galaxies
Tuli De, Tanuka Chattopadhyay, Asis Kumar Chattopadhyay
Spatial clustering nature of galaxies have been studied previously through auto correlation function. The same type of cross correlation function has been used to investigate param…
Clustering large number of extragalactic spectra of galaxies and quasars through canopies
Tuli De, Didier Fraix-Burnet, Asis Kumar Chattopadhyay
Cluster analysis is the distribution of objects into different groups or more precisely the partitioning of a data set into subsets (clusters) so that the data in subsets share som…
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…