4 papers
The sound of dynamical dark energy and modified gravity
João Rebouças, Guilherme Brando, Felipe T. Falciano +1
Different candidate models are able to reproduce the dynamical dark energy signal preferred by combinations of recent distance measurements. These models may be distinguished by th…
Cosmology Constraints from Type Ia Supernova Simulations of the Nancy Grace Roman Space Telescope Strategy Recommended by the High Latitude Time Domain Survey Definition Committee
Richard Kessler, Rebekah Hounsell, Bhavin Joshi +5
Within the next few years, the upcoming Nancy Grace Roman Space Telescope will be gathering data for the High Latitude Time Domain Survey (HLTDS) that will be used to significantly…
Quantifying Scalar Field Dynamics with DESI 2024 Y1 BAO measurements
Kim V. Berghaus, Joshua A. Kable, Vivian Miranda
Quintessence scalar fields are a natural candidate for evolving dark energy. Unlike the phenomenological parameterization of the dark energy equation of state, they cannot…
Sound Horizon Independent Constraints on Early Dark Energy: The Role of Supernova Data
Joshua A. Kable, Vivian Miranda
We assess the consistency of cosmological models that alter the size of the sound horizon at last scattering to resolve the Hubble tension with data from ACT + Planck CMB lensing,…