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- Duke UniversityUS77 papers
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11 papers · 1 filter
Characterizing the Roman Grism Redshift Efficiency of Type Ia Supernova Host Galaxies for the High-Latitude Time-Domain Survey
R. C. Chen, Z. Guo, D. Scolnic +8
The High-Latitude Time-Domain Survey (HLTDS) for the Nancy Grace Roman Space Telescope (Roman) will discover thousands of high redshift Type Ia supernovae (SNeIa) to make generatio…
Uniformity of Cosmic Microwave Background as a Non-Inflationary Geometrical Effect
Branislav Vlahovic, Maxim Eingorn, Cosmin Ilie
The conventional CDM cosmological model supplemented by the inflation concept describes the Universe very well. However, there are still a few concerns: new Planck data impose c…
Dark and visible matter distribution in Coma cluster: theory vs observations
Ruslan Brilenkov, Maxim Eingorn, Alexander Zhuk
We investigate dark and visible matter distribution in the Coma cluster in the case of the Navarro-Frenk-White (NFW) profile. A toy model where all galaxies in the cluster are conc…
Gurzadyan's Problem 5 and improvement of softenings for cosmological simulations using the PP method
Maxim Eingorn
This paper is devoted to different modifications of two standard softenings of the gravitational attraction (namely the Plummer and Hernquist softenings), which are commonly used i…
Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations
Maxim Eingorn, Maxim Brilenkov, Branislav Vlahovic
We point out a weak side of the commonly used determination of scalar cosmological perturbations lying in the fact that their average values can be nonzero for some matter distribu…
gravity: scalar perturbations in the late Universe
Maxim Eingorn, Jan Novák, Alexander Zhuk
In this paper we study scalar perturbations of the metric for nonlinear models. We consider the Universe at the late stage of its evolution and deep inside the cell of unifo…