Basic Understanding Of Dark Matter

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INDEX

1) Abstract

2) Basic understanding of Dark Matter

3) Types of Dark Matter A) Baryonic Dark Matter B) Non-Baryonic Dark Matter

4) Observational Evidence A) Galaxy Rotation Curves B) Velocity Dispersion Of Galaxies C) Analysis of Cosmic Microwave Background

5) Search For The Composition of Dark Matter

6) Detection Methods A) Direct Detection approach B) Indirect Detection approach

7) Substitute Theories A) Modified Gravity B) Mass in Extra Dimensions C) Quantised Inertia

8) Conclusion

Abstract

Dark Matter, one of the mysteries of Science that has us puzzled even after nearly 70 years of it’s initial prediction. Why? Has it got us on the edge of our seats so often. The answer lies in the sheer magnitude of the Dark Matter all around us. If certain predictions are true, then even right now as I write this , and when you read, billions of Neutrinos (hypothesized Dark Matter particle) are passing through us , without us even feeling them. Various astronomical techniques such as Gravitational Lensing, and Galaxy Rotation Curves have revealed that the mass of the celestial clusters such galaxies andd galaxy clusters is majorly composed of something other than what we observe from our conventional observation techniques. That is to say all the planets, stars and gas we observe in a particular galaxy, contribute to a mere 4.6% of the total mass of the universe.

It’s simple mass predictions of the
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