cmb mu-distortion 1delta-n formalism 1non-gaussian perturbations 1primordial black holes 1supermassive black holes 1
From the 1 of 3 linked papers with an AI index.
3 papers
astro-ph.CO2026
Evading the CMB -distortion bound on Supermassive Primordial Black Hole seeds with Non-Gaussian tails
Sanket Dave, Sheng-Feng Yan, Amara Ilyas +1
The paper studies how non‑Gaussian tails in the primordial curvature perturbation can enable the formation of supermassive primordial black hole seeds (10^5–10^7 M☉) while staying…
astro-ph.CO2026
Sound Speed Resonance in the Gravitational Wave Background as a probe for non-standard early universe cosmologies
Igor de O. C. Pedreira, Amara Ilyas, Ziwei Wang +2
Gravitational waves constitute a powerful probe of the underlying theory of gravity. In extensions of general relativity, additional degrees of freedom, such as scalar fields in th…
astro-ph.CO2025
Ultra-light dark matter with non-canonical kinetics reopening the mass window
Shiyun Lu, Amara Ilyas, Xiao-Han Ma +3
Fuzzy dark matter (FDM) with mass around eV is viewed as a promising paradigm in understanding the structure formation of the local universe at small scales. Recent obse…