399 citations · 1.6k across the 65 of their papers we have counts for
67 papers
Universality of Halo Shape and its Morphological Evolution across Cosmic Time
Ayan Nanda, Nishikanta Khandai, J. S. Bagla +1
We investigate the evolution of dark matter halo shapes in cosmological N-body simulations both in scale free Einstein-De Sitter (EdS) and CDM cosmologies. We compute the axis r…
Joint Optical-HI mock catalogues and prospects for upcoming HI surveys
Sauraj Bharti, J. S. Bagla
Atomic hydrogen (HI) regulates star formation as cold gas fuels star formation. It represents a key phase in the baryon cycle. Redshifted cm line emission serves as a key trac…
Gravitational lensing of 21 cm HI signal: detection prospects at z ~ 1 with uGMRT in galaxy cluster lenses
Sauraj Bharti, Ashish Kumar Meena, J. S. Bagla
The atomic hydrogen HI content of galaxies is intimately related to star formation and galaxy evolution through the baryon cycle, which involves processes such as accretion, feedba…
Gravitational physics in the context of Indian astronomy: A vision document
P. Ajith, K. G. Arun, Sukanta Bose +13
Contributions from the Indian gravity community have played a significant role in shaping several branches of astronomy and astrophysics. This document reviews some of the most imp…
Computational Astrophysics, Data Science & AI/ML in Astronomy: A Perspective from Indian Community
Prateek Sharma, Bhargav Vaidya, Yogesh Wadadekar +7
In contemporary astronomy and astrophysics (A&A), the integration of high-performance computing (HPC), big data analytics, and artificial intelligence/machine learning (AI/ML) has…
On the origin of transient features in cosmological N-Body Simulations
J. S. Bagla, Swati Gavas
We study the effect of gravitational clustering at small scales on larger scales by studying mode coupling between virialised halos. We build on the calculation by Peebles (1974) w…