217 citations · 331 across the 6 of their papers we have counts for
6 papers
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…
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…
Cosmological Information in Perturbative Forward Modeling
Giovanni Cabass, Marko Simonović, Matias Zaldarriaga
We study how well perturbative forward modeling can constrain cosmological parameters compared to conventional analyses. We exploit the fact that in perturbation theory the field-l…
Cosmology with the Galaxy Bispectrum Multipoles: Optimal Estimation and Application to BOSS Data
Mikhail M. Ivanov, Oliver H. E. Philcox, Giovanni Cabass +3
We present a framework for self-consistent cosmological analyses of the full-shape anisotropic bispectrum, including the quadrupole and hexadecapole moments.…
Modeling HI at the field level
Andrej Obuljen, Marko Simonović, Aurel Schneider +1
We use an analytical forward model based on perturbation theory to predict the neutral hydrogen (HI) overdensity maps at low redshifts. We investigate its performance by comparing…
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…