465 citations · 5k across the 107 of their papers we have counts for
12 papers · 1 filter
The impact of black hole feedback on the UV luminosity and stellar mass assembly of high-redshift galaxies
Olmo Piana, Pratika Dayal, Tirthankar Roy Choudhury
We employ the Delphi semi-analytical model to study the impact of black hole growth on high-redshift galaxies, both in terms of the observed UV luminosity and of the star formation…
The distribution of HI velocity profiles in a CDM universe
Aseem Paranjape, R. Srianand, Tirthankar Roy Choudhury +1
We model the distribution of the observed profiles of 21 cm line emission from neutral hydrogen (HI) in central galaxies selected from a statistically representative mock catalog o…
Multi-wavelength mock galaxy catalogs of the low-redshift Universe
Aseem Paranjape, Tirthankar Roy Choudhury, Ravi K. Sheth
We present a new suite of mock galaxy catalogs mimicking the low-redshift Universe, based on an updated halo occupation distribution (HOD) model and a scaling relation between opti…
The mass assembly of high-redshift black holes
Olmo Piana, Pratika Dayal, Marta Volonteri +1
We use the Delphi semi-analytic model to study the mass assembly and properties of high-redshift () black holes over a wide mass range, . Our…
Astraeus II: Quantifying the impact of cosmic variance during the Epoch of Reionization
Graziano Ucci, Pratika Dayal, Anne Hutter +6
Next generation telescopes such as the James Webb Space Telescope (JWST) and the Nancy Grace Roman Space Telescope (NGRST) will enable us to study the first billion years of our Un…
Reionization with galaxies and active galactic nuclei
Pratika Dayal, Marta Volonteri, Tirthankar Roy Choudhury +6
In this work we investigate the properties of the sources that reionized the intergalactic medium (IGM) in the high-redshift Universe. Using a semi-analytical model aimed at reprod…