7 papers
Remembering George Smoot
John Berliner, Tom Broadhurst, Martin Bucher +31
George Smoot (1945-2025) was a major figure in observational cosmology, particularly through his role in the precision measurement of the CMB dipole and the discovery of the primor…
Reconstructing inflationary features on large scales using genetic algorithm
Alipriyo Hoory, Dhiraj Kumar Hazra, L. Sriramkumar
[Abridged] A variety of model-dependent as well as model-independent approaches suggest that certain localized features in the primordial scalar power spectrum can lead to a signif…
A search for super-imposed oscillations to the primordial power spectrum in Planck and SPT-3G 2018 data
Akhil Antony, Fabio Finelli, Dhiraj Kumar Hazra +2
We search for super-imposed oscillations linearly or logarithmically spaced in Fourier wavenumbers in Planck and South Pole Telescope (SPT-3G) 2018 temperature and polarization…
Non-Minimally Coupled Quintessence in Light of DESI
Samuel Sánchez López, Alexandros Karam, Dhiraj Kumar Hazra
We analyze a model of quintessence governed by an exponential potential and non-minimally coupled to gravity, in light of recent datasets, including cosmic microwave background, ba…
Investigating the Origin of CMB Large-Scale Features Using LiteBIRD and CMB-S4
Catherine Petretti, Matteo Braglia, Xingang Chen +2
Several missions following Planck are currently under development, which will provide high-precision measurements of the Cosmic Microwave Background (CMB) anisotropies. Specificall…
Primordial Features in light of the Effective Field Theory of Large Scale Structure
Rodrigo Calderon, Théo Simon, Arman Shafieloo +1
While the simplest inflationary models predict a power-law form of the primordial power spectrum (PPS), various UV complete scenarios predict features on top of the standard power…