550 citations · 853 across the 11 of their papers we have counts for
11 papers
Euclid. I. Overview of the Euclid mission
Euclid Collaboration, Y. Mellier, Abdurro'uf +1134
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. Eucl…
Massive gravity with non-minimal coupling
A. Emir Gumrukcuoglu, Rampei Kimura, Kazuya Koyama
We propose new massive gravity theories with 5 dynamical degrees of freedom. We evade uniqueness theorems regarding the form of the kinetic and potential terms by adopting the "gen…
Assessing non-linear models for galaxy clustering III: Theoretical accuracy for Stage IV surveys
Benjamin Bose, Kazuya Koyama, Hans A. Winther
We provide in depth MCMC comparisons of two different models for the halo redshift space power spectrum, namely a variant of the commonly applied Taruya-Nishimichi-Saito (TNS) mode…
The observed galaxy bispectrum from single-field inflation in the squeezed limit
Kazuya Koyama, Obinna Umeh, Roy Maartens +1
Using the consistency relation in Fourier space, we derive the observed galaxy bispectrum from single-field inflation in the squeezed limit, in which one of the three modes has a w…
A Perturbative Approach to the Redshift Space Correlation Function: Beyond the Standard Model
Benjamin Bose, Kazuya Koyama
We extend our previous redshift space power spectrum code to the redshift space correlation function. Here we focus on the Gaussian Streaming Model (GSM). Again, the code accommoda…
Speeding up -body simulations of modified gravity: Chameleon screening models
Sownak Bose, Baojiu Li, Alexandre Barreira +5
We describe and demonstrate the potential of a new and very efficient method for simulating certain classes of modified gravity theories, such as the widely studied gravity…