103 citations · 675 across the 29 of their papers we have counts for
10 papers · 1 filter
Large gauge transformations, local coordinates and cosmological observables
Ermis Mitsou, Jaiyul Yoo
In recent years new types of coordinate transformations have appeared in cosmology on top of the standard gauge transformations, such as the dilatations and special conformal trans…
Non-Gaussianity in the Squeezed Three-Point Correlation from the Relativistic Effects
Jaiyul Yoo, Nastassia Grimm, Ermis Mitsou
Assuming a LCDM universe in a single-field inflationary scenario, we compute the three-point correlation function of the observed matter density fluctuation in the squeezed triangu…
Tetrad formalism for exact cosmological observables
Ermis Mitsou, Jaiyul Yoo
The standard description of cosmological observables is incomplete, because it does not take into account the correct angular parametrization of the sky, i.e. the one determined by…
Cosmological Information Contents on the Light-Cone
Jaiyul Yoo, Ermis Mitsou, Nastassia Grimm +2
We develop a theoretical framework to describe the cosmological observables on the past light cone such as the luminosity distance, weak lensing, galaxy clustering, and the cosmic…
: A New Cosmological Parameter?
Jaiyul Yoo, Ermis Mitsou, Yves Dirian +1
The background photon temperature is one of the fundamental cosmological parameters. Despite its significance, has never been allowed to vary in the data analysis…
General and consistent statistics for cosmological observations
Ermis Mitsou, Jaiyul Yoo, Ruth Durrer +2
This paper focuses on two aspects of the statistics of cosmological observables that are important for the next stages of precision cosmology. First, we note that the theory of red…