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The book will cover the following main areas: The discovery of voids, theoretical models and application to data, measurements of voids, cosmological constraints, cosmic voids for other areas of astrophysics, and machine learning with voids.
Key Features • The first and unique book dedicated to cosmic voids
• An exciting topic for understanding our Universe
• Provides a comprehensive review of the theory of voids, the historic perspective, data analysis applications, and developed methodologies
• Contains 3D video of visualization of voids from large-scale surveys
Table of contentsCHAPTER 1
Discovery of voids and generic background, why voids offer a change in perspective 1. Discovery of voids, including a short historical section to the concept of a void, suitable for non experts 2. Description of large-scale surveys analysing voids 3. Introduce the golden era of voids, with reference to modern surveys, with a cosmicvoids based perspective. 4. Introduction to Cosmology open questions (mentioning dark energy, neutrinos, dark matter, modified gravity, etc) 5. Discuss void power to solve open questions and uniqueness of voids.
CHAPTER 2 Theory background 1. Basis of cosmology theory from void’s perspective 2. Cosmic voids in the context of the cosmic-web 3.Theoretical models available for voids. a) Void size function and void bias: Theoretical model for void numbers (void size function). This part will des cribe theory developments to predict the number of voids for a given survey. It will discuss bias, and thresholds. b) Void ellipticity and AP test: Description of the use of void’s shape for cosmology (through a measure of Alcock-Paczynski methodology, redshift-spacedistortions, and ellipticity). This part will be very detailed, discussing evolution and improvements in theory predictions and understanding, and providing status of modelling for void profile (shape). c) Matter density and velocity around voids d) Void-galaxy correlation e) Void clustering f) Lensing around voids: Gravitational lensing theory aimed at cosmic voids analysis 4.Future developments needed for theory 5. Voids’ interrelation with the LSS: Review of void evolution with description of dynamics, movement and interrelation with large-scale structures (e.g. superclusters)
CHAPTER 3 Application to data 1. Algorithms for void finding a) Historical description b) Methodology 2. Photometric voids and Spectroscopic voids, challenges
CHAPTER 4 Measurements of voids 1. Surveys and void catalogs 2. Void-galaxy correlation function eBook Project Approval Meeting title information sheet v3.5 3. Lensing measurements 4. Bias inside voids, measurement 5. Correlation of voids and cosmic microwave background measurements 6. Implication of measurements
CHAPTER 5 Cosmological constraints 1. Constraining cosmological parameters with voids 2. Complementarity of voids with other tools : combining voids and other traditional tools 3. Current constraints: cosmological constraints obtained so far 4. Constraints with upcoming surveys and available forecasts: broad discussion on void statistics to expect from upcoming surveys, what will we be able to discover about our Universe with voids in the next decade?
CHAPTER 6 Beyond cosmology: using the power of cosmic voids for astrophysics 1. Review of the studies of the astrophysics of galaxies in voids and on their walls 2. Galaxy formation and evolution inside and outside voids, discussing qualitative differences of galaxies in voids to galaxies elsewhere 3. Cosmic voids to learn about black hole properties 4. Impact of galaxy properties on void statistics and on systematic effects for measurements of void statistics, including a discussion of the link between galaxies, tracer bias and voids.
CHAPTER 7 Voids, a benchmark for Machine Learning 1. Reduce systematic effects with Machine learning for cosmology with voids 2. Explore voids theory with Machine Learning