42 citations · 307 across the 28 of their papers we have counts for
12 papers · 1 filter
Negentropy as Diagnostic of Cosmic Density Fields and Dynamical Dark Energy Models
Suman Sarkar
We employ negentropy (), defined as the difference between the information content of a non-Gaussian probability distribution and a Gaussian with identical variance, as an infor…
Impact of Large-Scale Structure Formation on the Global Information Budget
Suman Sarkar
This paper offers an original theoretical framework to quantify the information content associated with cosmological structure formation. By taking into account the growth in pertu…
Unveiling galaxy pair alignment in cosmic filaments: A 3D exploration using EAGLE simulation
Suman Sarkar, Biswajit Pandey
We investigate how galaxy pairs are oriented in three dimensions within cosmic filaments using data from the EAGLE simulation. We identify filament spines using DisPerSE and isolat…
The maximum extent of the filaments and sheets in the cosmic web: an analysis of the SDSS DR17
Prakash Sarkar, Biswajit Pandey, Suman Sarkar
Filaments and sheets are striking visual patterns in cosmic web. The maximum extent of these large-scale structures are difficult to determine due to their structural variety and c…
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…
Unravelling the Cosmic Web: An analysis of the SDSS DR14 with the Local Dimension
Suman Sarkar, Biswajit Pandey
We analyze a volume limited galaxy sample from the SDSS to study the environments of galaxies on different length scales in the local Universe. We measure the local dimension of th…
Testing isotropy in the Universe using photometric and spectroscopic data from the SDSS
Suman Sarkar, Biswajit Pandey, Rishi Khatri
We analyze two volume limited galaxy samples from the SDSS photometric and spectroscopic data to test the isotropy in the local Universe. We use information entropy to quantify the…
How much a galaxy knows about its large-scale environment?: An information theoretic perspective
Biswajit Pandey, Suman Sarkar
The small-scale environment characterized by the local density is known to play a crucial role in deciding the galaxy properties but the role of large-scale environment on galaxy f…
The many scales to cosmic homogeneity: Use of multiple tracers from the SDSS
Prakash Sarkar, Subhabrata Majumdar, Biswajit Pandey +2
We carry out multifractal analyses of multiple tracers namely the main galaxy sample, the LRG sample and the quasar sample from the SDSS to test the assumption of cosmic homogeneit…
An information theory based search for homogeneity on the largest accessible scale
Suman Sarkar, Biswajit Pandey
We analyze the SDSS DR12 quasar catalogue to test the large-scale smoothness in the quasar distribution. We quantify the degree of inhomogeneity in the quasar distribution using in…
Probing large scale homogeneity and periodicity in the LRG distribution using Shannon entropy
Biswajit Pandey, Suman Sarkar
We quantify the degree of inhomogeneity in the Luminous Red Galaxy (LRG) distribution from the SDSS DR7 as a function of length scales by measuring the Shannon entropy in independe…
Testing homogeneity in the Sloan Digital Sky Survey Data Release Twelve with Shannon entropy
Biswajit Pandey, Suman Sarkar
We analyze a set of volume limited samples from SDSS DR12 to quantify the degree of inhomogeneity at different length scales using Shannon entropy. We find that the galaxy distribu…