6 papers
Exact Equivalence of the Observed Redshift and the Pulsar Timing Modulation in the Infinitesimal-Pulse Limit
Matteo Magi, Jaiyul Yoo
The pulsar timing arrays (PTA) collect the times of arrival of radio signals from the millisecond pulsars, and gravitational waves can modulate their arrival times. Although the PT…
Cosmic Dipoles from Large-Scale Structure Surveys
Jaiyul Yoo, Matteo Magi, Dragan Huterer
Large-scale structure surveys can be used to measure the dipole in the cosmic microwave background (CMB), in the luminosity distances inferred from type-Ia supernova observations,…
Lagrangian Perturbation Theory for Biased Tracers: Significance of the Number Conservation
Peter Espenshade, Jaiyul Yoo
The Lagrangian perturbation theory provides a simple yet powerful way of computing the nonlinear matter power spectrum, and it has been applied to biased tracers such as halos and…
Infrared Sensitivity of Cosmological Probes In The Presence of Axion Field Fluctuations
Matteo Magi, Robert Brandenberger, Jaiyul Yoo
We study the effects of long wavelength entropy fluctuations on cosmological probes such as galaxy clustering, luminosity distance, and CMB temperature anisotropies. Specifically,…
Monopole Fluctuations in Galaxy Surveys
Jaiyul Yoo, Daniel Eisenstein
Galaxy clustering provides a powerful way to probe cosmology. This requires understanding of the background mean density of galaxy samples, which is estimated from the survey itsel…
Infrared Sensitivity of Cosmological Probes in Horndeski Theory
Matteo Magi, Jaiyul Yoo
Cosmological probes constructed in large-scale surveys are independent of the underlying theory of gravity, and their relativistic descriptions are indeed applicable to any theory…