465 citations · 5k across the 107 of their papers we have counts for
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Effect of non-equilibrium ionization on derived physical conditions of the high- intergalactic medium
Prakash Gaikwad, Raghunathan Srianand, Vikram Khaire +1
Non-equilibrium ionization effects are important in cosmological hydrodynamical simulations but are computationally expensive. We study the effect of non-equilibrium ionization evo…
The hierarchical assembly of galaxies and black holes in the first billion years: predictions for the era of gravitational wave astronomy
Pratika Dayal, Elena M. Rossi, Banafsheh Shiralilou +3
In this work we include black hole (BH) seeding, growth and feedback into our semi-analytic galaxy formation model, Delphi. Our model now fully tracks the, accretion- and merger-dr…
Probing the fluctuating Ultra-violet background using the Hubble Frontier Fields
Tirthankar Roy Choudhury, Pratika Dayal
In recent years, the rise in the number of Lyman Break Galaxies detected at high redshifts z >= 6 has opened up the possibility of understanding early galaxy formation physics in g…
Studying the morphology of HI isodensity surfaces during reionization using Shapefinders and percolation analysis
Satadru Bag, Rajesh Mondal, Prakash Sarkar +3
Minkowski functionals and Shapefinders shed light on the connectedness of large-scale structure by determining its topology and morphology. We use a sophisticated code, SURFGEN2, t…
Can SKA--Phase 1 go much beyond the LHC in supersymmetry search?
Arpan Kar, Sourav Mitra, Biswarup Mukhopadhyaya +1
We study the potential of the Square Kilometre Array in the first phase (SKA1) in detecting dark matter annihilation signals from dwarf spheroidals in the form of diffuse radio syn…
Photon number conservation and the large-scale 21 cm power spectrum in semi-numerical models of reionization
T. Roy Choudhury, Aseem Paranjape
Semi-numerical models of the reionization of neutral hydrogen (HI) based on the excursion set (ES) approach are known to violate photon number conservation at the few per cent leve…