activity
20182026
most citedThe impact of non-Gaussianity on the error covariance for observations of the Epoch of Reionization 21-cm power spectrum

30 citations · 135 across the 14 of their papers we have counts for

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Showing astro-ph.COShow all

15 papers · 1 filter

astro-ph.CO2026

Cosmology with Multi-Wavelength Line Intensity Mapping Synergies in the SKAO Era

Debanjan Sarkar, Suman Majumdar, Chandra Shekhar Murmu +21

Line intensity mapping (LIM) has emerged as a powerful tool for surveying the large-scale structure of the Universe across cosmic time by measuring spatial fluctuations in the cumu…

astro-ph.CO2026

Cosmology with Intensity Mapping via Statistics Beyond the Power Spectrum in the SKAO Era

Suman Majumdar, Debanjan Sarkar, Leon Noble +38

The cosmological distribution of neutral hydrogen (HI) during the post-reionization era is highly non-Gaussian due to the underlying non-linear structure formation, complex galaxy…

astro-ph.CO2025★ 1 cited

Machine Learning-Driven Analysis of kSZ Maps to Predict CMB Optical Depth

Farshid Farhadi Khouzani, Abinash Kumar Shaw, Paul La Plante +2

Upcoming measurements of the kinetic Sunyaev-Zel'dovich (kSZ) effect, which results from Cosmic Microwave Background (CMB) photons scattering off moving electrons, offer a powerful…

astro-ph.CO2025★ 2 cited

From ANN to BNN: Inferring Reionization Parameters using Uncertainty-aware Emulators of 21-cm Summaries

Yashrajsinh Mahida, Sanjay Kumar Yadav, Suman Majumdar +6

Inferring astrophysical parameters from radio interferometric observations of the redshifted 21-cm signal from the Epoch of Reionization (EoR) is a challenging yet crucial task. Th…

astro-ph.CO2024★ 4 cited

The size and shape dependence of the SDSS galaxy bispectrum

Anindita Nandi, Sukhdeep Singh Gill, Debanjan Sarkar +3

We have measured the spherically averaged bispectrum of the SDSS main galaxy sample, considering a volume-limited data cube with mean galaxy number density $…

astro-ph.CO2023★ 10 cited

The monopole and quadrupole moments of the Epoch of Reionization (EoR) 21-cm bispectrum

Sukhdeep Singh Gill, Suman Pramanick, Somnath Bharadwaj +2

We study the monopole () and quadrupole () moments of the 21-cm bispectrum (BS) from EoR simulations and present results for squeezed and stretched triang…