Exam (elaborations)
Astronomy Final presentation notes on Large Scale Structure.
- Course
- Astro 031
- Institution
- Hofstra University
Very thorough notes on Large Scale Structure for a final exam presentation.
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Title: Large Scale Structure Formation in the Universe: A Comprehensive ReviewAbstract:
The formation of large-scale structures in the universe is one of the fundamental
processes that shapes its current state. This paper provides a comprehensive review of
the mechanisms driving the formation of large-scale structures, including galaxies,
galaxy clusters, and cosmic filaments. By examining various theoretical frameworks,
observational evidence, and computational simulations, this paper aims to elucidate the
complex interplay of gravitational collapse, dark matter, baryonic physics, and cosmic
expansion in shaping the cosmic web.
1. Introduction:
The study of large-scale structure formation in the universe is crucial for understanding
its evolution from the early cosmic epochs to its present-day configuration. This
introduction section provides an overview of the significance of large-scale structures,
highlighting their role in cosmology, galaxy formation, and the distribution of matter in
the universe.
2. Theoretical Frameworks:
This section delves into the theoretical underpinnings of large-scale structure formation,
including the gravitational instability theory, inflationary cosmology, and the Lambda
Cold Dark Matter (ΛCDM) model. It discusses how small density fluctuations in the early
universe grew via gravitational collapse into the rich cosmic web of galaxies, clusters,
and voids we observe today.
3. Observational Evidence:
Utilizing data from various observational probes such as galaxy surveys, cosmic
microwave background radiation, and gravitational lensing, this section presents
empirical evidence supporting the existence and characteristics of large-scale
structures. It discusses the clustering of galaxies, the cosmic microwave background
power spectrum, and the imprint of gravitational lensing on the cosmic web.
4. Dark Matter and Baryonic Physics:
Dark matter plays a central role in the formation of large-scale structures due to its
gravitational influence on the distribution of matter. This section explores the role of dark
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