3 papers
astro-ph.CO2024
Improving cosmological analyses of HI clustering by reducing stochastic noise
Simon Foreman, Andrej Obuljen, Marko Simonović
High-number-density tracers of large-scale structure, such as the HI-rich galaxies measured by 21 cm intensity mapping, have low sampling noise, making them particularly promising…
astro-ph.CO2024
BOSS Constraints on Massive Particles during Inflation: The Cosmological Collider in Action
Giovanni Cabass, Oliver H. E. Philcox, Mikhail M. Ivanov +4
Massive particles leave imprints on primordial non-Gaussianity via couplings to the inflaton, even despite their exponential dilution during inflation: practically, the Universe ac…
astro-ph.CO2020
Non-linear perturbation theory extension of the Boltzmann code CLASS
Anton Chudaykin, Mikhail M. Ivanov, Oliver H. E. Philcox +1
We present a new open-source code that calculates one-loop power auto- and cross-power spectra for matter fields and biased tracers in real and redshift space. These spectra incorp…