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Perturbation Theory Remixed: Improved Nonlinearity Modeling beyond Standard Perturbation Theory
Zhenyuan Wang, Donghui Jeong, Atsushi Taruya +2
We present a novel EPT (th-order Eulerian Perturbation Theory) scheme to model the nonlinear density field by the summation up to th-order density fields in perturbation t…
Clustering of emission line galaxies with IllustrisTNG I.: fundamental properties and halo occupation distribution
Ken Osato, Teppei Okumura
Upcoming spectroscopic redshift surveys use emission line galaxies (ELGs) to trace the three-dimensional matter distributions with wider area coverage in the deeper Universe. Since…
Comparing weak lensing peak counts in baryonic correction models to hydrodynamical simulations
Max E. Lee, Tianhuan Lu, Zoltán Haiman +2
Next-generation weak lensing (WL) surveys, such as by the Vera Rubin Observatory's LSST, the Space Telescope, and the space mission, will supply…
Probabilistic Mass Mapping with Neural Score Estimation
Benjamin Remy, Francois Lanusse, Niall Jeffrey +4
Weak lensing mass-mapping is a useful tool to access the full distribution of dark matter on the sky, but because of intrinsic galaxy ellipticies and finite fields/missing data, th…
Baryon Pasting Algorithm: Halo-based and Particle-based Pasting Methods
Ken Osato, Daisuke Nagai
We present a fast methodology to produce mock observations of the thermal and kinetic Sunyaev-Zel'dovich (SZ) effects based on the dark matter only -body simulations coupled wit…