4 citations · 6 across the 7 of their papers we have counts for
7 papers
Fast modelling of ionization balance in the intergalactic medium: I- implications for the IGM metallicity
Bhaskar Arya, Kartick C. Sarkar, Shiv K. Sethi
Ionization balance in the intergalactic medium (IGM) is central to the interpretation of quasar absorption spectra, linking observed ionic columns to the underlying gas density, te…
A trailing lognormal approximation of the Lyman- forest: comparison with full hydrodynamic simulations at
Bhaskar Arya
Lyman-(Ly) forest in the spectra of distant quasars encodes the information of the underlying cosmic density field at smallest scales. The modelling of the upcoming large and…
Playground of Lognormal Seminumerical Simulations of~the~Lyman~ Forest: Thermal History of the Intergalactic Medium
Tomas Ondro, Bhaskar Arya, Rudolf Galis
This study aims to test a potential application of lognormal seminumerical simulations to recover the thermal parameters and Jeans length. This could be suitable for generating lar…
Covariance matrices for the Lyman- forest using the lognormal approximation
Bhaskar Arya, Aseem Paranjape, Tirthankar Roy Choudhury
We investigate the nature of correlations in the small-scale flux statistics of the Lyman- (Ly) forest across redshift bins. Understanding these correlations is important for…
A modified lognormal approximation of the Lyman- forest: comparison with full hydrodynamic simulations at
Bhaskar Arya, Tirthankar Roy Choudhury, Aseem Paranjape +1
Observations of the Lyman- forest in distant quasar spectra with upcoming surveys are expected to provide significantly larger and higher-quality datasets. To interpret these da…
Lognormal semi-numerical simulations of the Lyman- forest: comparison with full hydrodynamic simulations
Bhaskar Arya, Tirthankar Roy Choudhury, Aseem Paranjape +1
Observations of the Lyman- (Ly) forest in spectra of distant quasars enable us to probe the matter power spectrum at relatively small scales. With several upcoming surveys, i…
Evolution of axis ratios from phase space dynamics of triaxial collapse
Sharvari Nadkarni-Ghosh, Bhaskar Arya
We investigate the evolution of axis ratios of triaxial haloes using the phase space description of triaxial collapse. In this formulation, the evolution of the triaxial ellipsoid…