14 citations · 46 across the 8 of their papers we have counts for
8 papers
SCRIPT in the Cosmic Dawn: Distinguishing Redshift-Evolving Galaxy Populations with 21-cm Fluctuations
Janakee Raste, Tirthankar Roy Choudhury
Recent James Webb Space Telescope (JWST) observations suggest an unexpectedly high abundance of luminous galaxies at , challenging traditional models of star formatio…
High-Redshift Signatures from the Cosmic Dawn and the Epoch of Reionization
Rennan Barkana, Oliver Basquette, Ankita Bera +22
In this chapter, we provide a comprehensive overview of the astrophysical and cosmological processes that shape the 21-cm signal during Cosmic Dawn and the Epoch of Reionization. W…
21 cm Signal from the Thermal Evolution of Lyman- during Cosmic Dawn
Janakee Raste, Shiv K. Sethi
The Lyman- photons couple the spin temperature of neutral hydrogen (HI) to the kinetic temperature during the era of cosmic dawn. During this process, they also exchange energy…
Thermal Evolution of the IGM due to Lyman-α photons during the Cosmic Dawn
Janakee Raste, Anjan Kumar Sarkar, Shiv K. Sethi
The first star-forming objects which formed at high redshifts during the cosmic dawn (CD) also emitted photons between Lyman- and Lyman-limit frequencies. These photons are inst…
The 21-cm bispectrum from neutral hydrogen islands at z < 6
Janakee Raste, Girish Kulkarni, Catherine A. Watkinson +2
Spatial variations in the Lyman- forest opacity at seem to require a late end to cosmic reionization. In this picture, the universe contains neutral hydrogen 'islands' of…
Implications of the Lyman- forest for the 21-cm power spectrum from the epoch of reionization
Janakee Raste, Girish Kulkarni, Laura C. Keating +3
Our understanding of the intergalactic medium at redshifts - has improved considerably in the last few years due to the discovery of quasars with that enable Lyman-$α…
Analytic Formulation of 21 cm Signal from Cosmic Dawn: Ly Fluctuations
Janakee Raste, Shiv Sethi
We present an analytic formalism to compute the fluctuating component of the \ion{H}{1} signal and extend it to take into account the effects of partial Lyman- coupling during t…
An Analytic Formulation of 21-cm Signal from Early Phase of Epoch of Reionization
Janakee Raste, Shiv Sethi
We present an analytic formulation to model the fluctuating component of the HI signal from the epoch of reionization during the phase of partial heating. During this phase, we ass…