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Cosmology

✴Cosmology is a branch of astronomy that involves the origin and evolution of the universe, from the Big Bang ...

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Cosmology is a branch of astronomy that involves the origin and evolution of the universe, from the Big Bang to today and on into the future. According to NASA, the definition of cosmology is "the scientific study of the large scale properties of the universe as a whole."✴

Cosmologists puzzle over exotic concepts like string theory, dark matter and dark energy and whether there is one universe or many (sometimes called the multiverse). While other aspects astronomy deal with individual objects and phenomena or collections of objects, cosmology spans the entire universe from birth to death, with a wealth of mysteries at every stage. ✦

This App is aimed at students and readers who want to be able to understand and appreciate the Cosmological Phenomena we observe in the night sky. It will be of great importance to young astronomers, who wish to explore the night sky for finding astronomical objects.✦

Topics Covered in this App are Listed Below】

What Is Cosmology? Definition & History

The Expanding Universe

Cepheid Variables

Redshift and Recessional Velocity

Redshift vs. Kinematic Doppler Shift

Cosmological Metric & Expansion

⇢ Robertson-Walker Metric

Hubble Parameter & Scale Factor

Friedmann Equation & World Models

Fluid Equation

Matter Dominated Universe

Radiation Dominated Universe

Dark Energy

Spiral Galaxy Rotation Curves

Velocity Dispersion Measurements of Galaxies

Hubble & Density Parameter

Age of Universe

Angular Diameter Distance

Luminosity Distance

Type 1A Supernovae

Cosmic Microwave Background

CMB - Temperature at Decoupling

Anisotropy of CMB Radiation & Cobe

Modelling the CMB Anisotropies

Horizon Length at the Surface of Last Scattering

Extrasolar Planet Detection

Radial Velocity Method

Transit Method

Exoplanet Properties

Endless Void or Big Crunch: How Will the Universe End?

What's 96 Percent of the Universe Made Of? Astronomers Don't Know

Baryons

Radiation

Neutrinos

⇢ Newton’s Cosmology

Rotating Galaxies

Heisenberg uncertainty principle

⇢ Hubble’s Law

Lorentz Transformations

Time Dilation

Redshift and Scale Factor

Parallax Distance

The Principle of Equivalence

Falling Photons

Superluminal Photons

Energy of Gravity Waves

Cosmic Shear

Gravitational Waves

Tensor Field

Sources of Gravitational Waves

Gravitational Wave Detection

Black Holes

Thermal Death

What might the dark matter be?

Baryosynthesis and Antimatter Generation

The CMB Temperature

⇢ 11 Amazing Facts

Astronomical distances

Doppler effect and redshift

⇢ Hubble’s law

⇢ Momentum-Space Density

Spatial Volume and Density

Top 10 cosmological discoveries

Cosmology - Galaxies

Glossary of Astronomical and Cosmological Terms

Anti de-Sitter space & Axion

Cosmological principle

Degrees of freedom

Fundamental Forces

Last update

Feb. 16, 2020

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