4 papers
Reconstructing dark energy with fewer assumptions
Daniel A. Kessler, Eleonora Di Valentino, Luis A. Escamilla +1
We perform minimalistic reconstructions of the dark energy density and equation of state using late-time distance measurements. Our methodology avoids assumptions that correlate th…
Effects of chemically homogeneous evolution of the first stars on the 21-cm signal and reionization
Boyuan Liu, Daniel Kessler, Thomas Gessey-Jones +6
The first generation of stars, known as Population III (Pop III), played a crucial role in the early Universe through their unique formation environment and metal-free composition.…
One-parameter dynamical dark energy: Hints for oscillations
Daniel A. Kessler, Luis A. Escamilla, Supriya Pan +1
There is mounting evidence from multiple cosmological probes that dark energy may be dynamical, with an equation of state that evolves over cosmic time. While this evidence is typi…
Gravitational Wave Scattering From the Sun and Planets
Daniel A. Kessler, Craig J. Copi, Glenn D. Starkman
General relativity predicts that massless waves should scatter from the Riemann curvature of their backgrounds. These scattered waves are sometimes called and have…