85 citations · 332 across the 14 of their papers we have counts for
4 papers · 1 filter
Investigation of the Effect of Bars on the Properties of Spiral Galaxies: A Multivariate Statistical Study
Prasenjit Banerjee, Tanuka Chattopadhyay, Asis Kumar Chattopadhyay
Subjective classification of spiral galaxies is not sufficient for studying the effect of bars on their physical characteristics. In reality the problem is to comprehend the comple…
Two phase formation of massive elliptical galaxies : study through cross-correlation including spatial effect
Soumita Modak, Tanuka Chattopadhyay, Asis Kumar Chattopadhyay
Formation mechanism of present day population of elliptical galaxies have been revisited in the context of hierarchical cosmological models accompanied by accretion and minor merge…
Multivariate Approaches to Classification in Extragalactic Astronomy
Didier Fraix-Burnet, Marc Thuillard, Asis Kumar Chattopadhyay
Clustering objects into synthetic groups is a natural activity of any science. Astrophysics is not an exception and is now facing a deluge of data. For galaxies, the one-century ol…
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…