1 citations · 2 across the 8 of their papers we have counts for
8 papers
Stellar Halo Memory: A New Observable for Galactic Archaeology
Biswajit Pandey, Amit Mondal
The Galactic stellar halo preserves a fossil record of the Milky Way's assembly history, yet there is currently no unified framework for quantifying how much of this information su…
A Multi-parameter Fuzzy Set Framework for Classifying Red, Blue, and Green Valley Galaxies
Amit Mondal, Biswajit Pandey
We present a data-driven fuzzy set framework for classifying galaxies into the red sequence, blue cloud, and green-valley populations using multiple observables from the Sloan Digi…
Separating halo and disk stars in galaxies with Fuzzy Set Theory
Amit Mondal, Biswajit Pandey
Disk and halo stars are generally classified using several conventional methods, such as the Toomre diagram, sharp cuts in metallicity ([Fe/H]), vertical distance (…
From metallicity distributions to mutual information: A new perspective on stellar halo assembly
Amit Mondal, Biswajit Pandey
The metallicity structure of stellar halos encodes the fossil record of galaxy assembly, tracing the chemical evolution and dynamical imprint of past mergers. Using five Milky Way-…
Probing cosmic isotropy with Gamma-ray bursts: A dipole and quadrupole analysis of BATSE and Fermi GBM data
Debosi Mondal, Biswajit Pandey, Amit Mondal
The cosmological principle, asserting large-scale homogeneity and isotropy, underpins the standard model of cosmology. Testing its validity using independent astronomical probes re…
Revealing a transitional epoch of large-scale cosmic anisotropy in the quasar distribution
Amit Mondal, Biswajit Pandey, Krishna Ghosh
The Cosmological Principle posits that the Universe is isotropic on the largest scales. While widely supported, this foundational assumption remains testable. We analyse the angula…
Spatial and velocity anisotropies of stellar halos across cosmic web environments: Insights from IllustrisTNG simulation
Amit Mondal, Biswajit Pandey, Anindita Nandi
The role of large-scale environment in shaping the structural and kinematic properties of stellar halos remains an open question. We investigate whether the cosmic web environments…
Probing the spatial and velocity anisotropies in stellar halos from the Aquarius simulations
Amit Mondal, Biswajit Pandey
We analyze the spatial anisotropy and the velocity anisotropy in a set of mock stellar halos from the Aquarius simulations. The spatial anisotropy in each mock stellar halo rises p…