42 citations · 307 across the 28 of their papers we have counts for
5 papers · 1 filter
On the origin of red spirals: Does assembly bias play a role?
Suman Sarkar, Biswajit Pandey, Apashanka Das
The formation of the red spirals is a puzzling issue in the standard picture of galaxy formation and evolution. Most studies attribute the colour of the red spirals to different en…
The local environment of flat galaxies
Suman Sarkar, Arunima Banerjee, Dmitry Makarov
The existence of flat or bulgeless galaxies poses a challenge to the hierarchical structure formation scenario advocated by modern cosmology. We determine the geometrical environme…
Galaxy interactions in different environments: An analysis of galaxy pairs from the SDSS
Apashanka Das, Biswajit Pandey, Suman Sarkar +1
We analyze the galaxy pairs in a volume limited sample () from the SDSS to study the effects of galaxy interactions on the star formation rate and colour of galaxies…
Testing homogeneity of the galaxy distribution in the SDSS using Renyi entropy
Biswajit Pandey, Suman Sarkar
We analyze a set of volume limited sample of galaxies from the SDSS to study the issue of cosmic homogeneity. We use the Renyi entropy of different order to probe the inhomogenetie…
Green valley galaxies in the cosmic web: internal versus environmental quenching
Apashanka Das, Biswajit Pandey, Suman Sarkar
We analyze the SDSS data to classify the galaxies based on their colour using a fuzzy set-theoretic method and quantify their environments using the local dimension. We find that t…