118 citations · 480 across the 9 of their papers we have counts for
9 papers
Transformational astrophysics and exoplanet science with Habitable Worlds Observatory's High Resolution Imager
Vincent Van Eylen, Richard Massey, Saeeda Awan +167
Habitable Worlds Observatory (HWO) will be NASA's flagship space telescope of the 2040s, designed to search for life on other planets and to transform broad areas of astrophysics.…
The Luminosity Distance in Perturbed FLRW Spacetimes
Ted Pyne, Mark Birkinshaw
We derive an expression for the luminosity distance in FLRW spacetimes affected by scalar perturbations. Our expression is complete to linear order and is expressed entirely in ter…
Quasar Proper Motions and Low-Frequency Gravitational Waves
Carl R. Gwinn, T. Marshall Eubanks, Ted Pyne +2
We report observational upper limits on the mass-energy of the cosmological gravitational-wave background, from limits on proper motions of quasars. Gravitational waves with period…
Higher-Order Gravitational Perturbations of the Cosmic Microwave Background
Ted Pyne, Sean M. Carroll
We study the behavior of light rays in perturbed Robertson-Walker cosmologies, calculating the redshift between an observer and the surface of last scattering to second order in th…
Gravitational Radiation and Very Long Baseline Interferometry
Ted Pyne, Carl R. Gwinn, Mark Birkinshaw +2
Gravitational waves affect the observed direction of light from distant sources. At telescopes, this change in direction appears as periodic variations in the apparent positions of…
Beyond the Thin Lens Approximation
Ted Pyne, Mark Birkinshaw
We obtain analytic formulae for the null geodesics of Friedmann-Lema\^ıtre-Robertson-Walker spacetimes with scalar perturbations in the longitudinal gauge. From these we provide a…
Beyond the Thin Lens Approximation
Ted Pyne, Mark Birkinshaw
We obtain analytic formulae for the null geodesics of Friedmann-Lema\^ıtre-Robertson-Walker spacetimes with scalar perturbations in the longitudinal gauge. We use these to provide…
A Texture Bestiary
James A. Bryan, Sean M. Carroll, Ted Pyne
Textures are topologically nontrivial field configurations which can exist in a field theory in which a global symmetry group is broken to a subgroup , if the third homotopy…
Null Geodesics in Perturbed Spacetimes
Ted Pyne, Mark Birkinshaw
We present a generalization and refinement of the Sachs-Wolfe technique which unifies many of the approaches taken to date and clarifies both the physical and the mathematical char…