359 citations · 6.9k across the 208 of their papers we have counts for
6 papers · 1 filter
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 III: The environment and physical properties of reionization sources
Anne Hutter, Pratika Dayal, Laurent Legrand +2
In this work, we use the {\sc astraeus} (seminumerical rAdiative tranSfer coupling of galaxy formaTion and Reionization in N-body dArk mattEr simUlationS) framework which couples g…
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…
Astraeus I: The interplay between galaxy formation and reionization
Anne Hutter, Pratika Dayal, Gustavo Yepes +3
We introduce a new self-consistent model of galaxy evolution and reionization, ASTRAEUS (semi-numerical rAdiative tranSfer coupling of galaxy formaTion and Reionization in N-body d…
A hint on the metal-free star formation rate density from 21cm-EDGES data
Atrideb Chatterjee, Pratika Dayal, Tirthankar Roy Choudhury +1
We aim to provide the first data-constrained estimate of the metal-free (Population III; Pop III) star formation rate density required at high-redshifts ($z \gtrs…
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…