Browsing Articles by Author "69e6d588-0147-47c1-9781-19f6b4e4570e"

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COMPLEMENTARITY OF PECULIAR VELOCITY SURVEYS AND REDSHIFT SPACE DISTORTIONS FOR TESTING GRAVITY

Kim, Alex G.; Linder, Eric V. (PHYSICAL REVIEW D, 2020)

Peculiar-velocity surveys of the low-redshift universe have significant leverage to constrain the growth rate of cosmic structure and test gravity. Wide-field imaging surveys combined with multiobject spectrographs [e.g., ...
DEEP LEARNING UNRESOLVED LENSED LIGHT CURVES

Denissenya, Mikhail; Linder, Eric V (Monthly Notices of the Royal Astronomical Society, 2022)

Gravitationally lensed sources may have unresolved or blended multiple images, and for time varying sources, the light curves from individual images can overlap. We use convolutional neural nets to both classify the light ...
DETECTING HELIUM REIONIZATION WITH FAST RADIO BURSTS

Linder, Eric V. (PHYSICAL REVIEW D, 2020)

Fast radio bursts (FRBs) probe the electron density of the universe along the path of propagation, making high redshift FRB sensitive to the helium reionization epoch. We analyze the signal to noise with which a detection ...
DETERMINING MODEL-INDEPENDENT H0 AND CONSISTENCY TESTS

Liao, Kai; Shafieloo, Arman; Keeley, Ryan E.; Linder, Eric V. (arxiv, 2020)

We determine the Hubble constant H0 precisely (2.3% uncertainty) in a manner independent of cosmological model through Gaussian process regression, using strong lensing and supernova data. Strong gravitational lensing ...
EXPLORING EARLY AND LATE COSMOLOGY WITH NEXT GENERATION SURVEYS

Brando, Guilherme; Linder, Eric V. (PHYSICAL REVIEW D, 2020)

Perturbations from inflation evolve into large scale structure of the late universe, and encode abundant cosmic structure formation physics. We allow freedom in the primordial power spectrum, rather than assuming a power ...
THE MIRROR AT THE EDGE OF THE UNIVERSE: REFLECTIONS ON AN ACCELERATED BOUNDARY CORRESPONDENCE WITH DE SITTER COSMOLOGY

Zhakenuly, Abay; Good, Michael R.R.; Linder, Eric V. (arxiv, 2020)

An accelerated boundary correspondence (ABC) is solved for the de Sitter moving mirror cos mology. The beta Bogoliubov coefficients reveal the particle spectrum is a Planck distribution with temperature inversely proportional ...
OUT OF ONE, MANY: DISTINGUISHING TIME DELAYS FROM LENSED SUPERNOVAE

Denissenya, Mikhail; Bag, Satadru; Kim, Alex G; Linder, Eric V; Shafieloo, Arman (Monthly Notices of the Royal Astronomical Society, 2022)

Gravitationally lensed Type Ia supernovae are an emerging probe with great potential for constraining dark energy, spatial curvature, and the Hubble constant. The multiple images and their time delayed and magnified fluxes ...