| _version_ | 1866901289740271616 |
|---|---|
| author | Oleksii Verbytskyi |
| author_facet | Oleksii Verbytskyi |
| contents | <p class="MsoNormal"><strong><span>Abstract</span></strong></p> <p class="MsoNormal"><span>Contemporary cosmology is increasingly defined by the convergence of multiple observational programs that probe the geometry, composition, and growth history of the Universe across very different epochs. The cosmic microwave background constrains the early Universe and provides the high-redshift calibration frame for the standard cosmological model, while galaxy clustering, baryon acoustic oscillations, weak gravitational lensing, redshift-space distortions, and cluster statistics probe the late-time distribution of matter and the dynamics of cosmic expansion. In this scientific environment, the study of large-scale structure occupies a central position because it links the physics of primordial fluctuations to the observed web of galaxies, filaments, voids, and clusters, and because it provides one of the main empirical routes to mapping dark matter indirectly through gravity. At the same time, the interpretation of large-scale-structure data has become more demanding, since the precision of modern surveys now requires tighter control of survey systematics, nonlinear modeling, galaxy bias, intrinsic alignments, baryonic effects, and cross-probe covariance. This article examines the relation between large-scale structure, dark matter distribution, and observational constraints in contemporary cosmology. The first block establishes the conceptual and observational basis of the study. It explains why large-scale structure is a privileged tracer of the dark matter field, clarifies the complementary roles of cosmic microwave background measurements and low-redshift surveys, and outlines the observational architecture of current cosmology as shaped by Planck, DES, KiDS, DESI, and Euclid. The central argument advanced here is that contemporary cosmology should not be understood as a sequence of isolated probes, but as a structured inferential system in which distinct observations constrain different aspects of the same underlying cosmic model while also exposing possible tensions in its late-time realization. This first part therefore develops the theoretical and observational framework needed for the later discussion of growth of structure, dark matter mapping, survey tensions, and future cosmological inference. </span></p> <p class="MsoNormal"> </p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_20073944 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | LARGE-SCALE STRUCTURE, DARK MATTER DISTRIBUTION, AND OBSERVATIONAL CONSTRAINTS IN CONTEMPORARY COSMOLOGY Oleksii Verbytskyi cosmology, astrophysics, large-scale structure, dark matter distribution, weak gravitational lensing, baryon acoustic oscillations, cosmic microwave background, galaxy clustering <p class="MsoNormal"><strong><span>Abstract</span></strong></p> <p class="MsoNormal"><span>Contemporary cosmology is increasingly defined by the convergence of multiple observational programs that probe the geometry, composition, and growth history of the Universe across very different epochs. The cosmic microwave background constrains the early Universe and provides the high-redshift calibration frame for the standard cosmological model, while galaxy clustering, baryon acoustic oscillations, weak gravitational lensing, redshift-space distortions, and cluster statistics probe the late-time distribution of matter and the dynamics of cosmic expansion. In this scientific environment, the study of large-scale structure occupies a central position because it links the physics of primordial fluctuations to the observed web of galaxies, filaments, voids, and clusters, and because it provides one of the main empirical routes to mapping dark matter indirectly through gravity. At the same time, the interpretation of large-scale-structure data has become more demanding, since the precision of modern surveys now requires tighter control of survey systematics, nonlinear modeling, galaxy bias, intrinsic alignments, baryonic effects, and cross-probe covariance. This article examines the relation between large-scale structure, dark matter distribution, and observational constraints in contemporary cosmology. The first block establishes the conceptual and observational basis of the study. It explains why large-scale structure is a privileged tracer of the dark matter field, clarifies the complementary roles of cosmic microwave background measurements and low-redshift surveys, and outlines the observational architecture of current cosmology as shaped by Planck, DES, KiDS, DESI, and Euclid. The central argument advanced here is that contemporary cosmology should not be understood as a sequence of isolated probes, but as a structured inferential system in which distinct observations constrain different aspects of the same underlying cosmic model while also exposing possible tensions in its late-time realization. This first part therefore develops the theoretical and observational framework needed for the later discussion of growth of structure, dark matter mapping, survey tensions, and future cosmological inference. </span></p> <p class="MsoNormal"> </p> |
| title | LARGE-SCALE STRUCTURE, DARK MATTER DISTRIBUTION, AND OBSERVATIONAL CONSTRAINTS IN CONTEMPORARY COSMOLOGY |
| topic | cosmology, astrophysics, large-scale structure, dark matter distribution, weak gravitational lensing, baryon acoustic oscillations, cosmic microwave background, galaxy clustering |
| url | https://doi.org/10.5281/zenodo.20073944 |