The Big Bang Theory and Big Bang Nucleosynthesis PDF
Document Details
Uploaded by Deleted User
Tags
Summary
This document presents information on the Big Bang theory and nucleosynthesis. It encompasses various aspects, including questions about space, the formation of elements, and evidence supporting the Big Bang, such as Hubble's redshift and Cosmic Microwave Background Radiation. It serves as a learning resource.
Full Transcript
DISCLAIMER This presentation, including examples, images, and references are provided for informational purposes only. Credits shall be given to the images taken from open sources & will not be used for any promotional activities. Two Truths and a Lie Directi...
DISCLAIMER This presentation, including examples, images, and references are provided for informational purposes only. Credits shall be given to the images taken from open sources & will not be used for any promotional activities. Two Truths and a Lie Directions: Determine which among the three given statements about space is the false statement. ROUND 1 S1: The light is the fastest thing in the universe. S2: The universe is expanding at a uniform speed. S3: Light travel the fastest in a vacuum. ROUND 2 S1: The earth is the center of the universe. S2: The sun is a medium-sized star. S3: The solar system is located in the Milky Way galaxy. ROUND 2 S1: The earth is the center of the universe. S2: The sun is a medium-sized star. S3: The solar system is located in the Milky Way galaxy. ROUND 3 S1: Hydrogen is formed within stars. S2: Hydrogen is the lightest element. S3: Hydrogen is the most abundant element in the universe. The Big Bang Theory The Big Bang is not about an explosion. Instead, the space itself expands with time everywhere. Big Bang An intensely hot and infinitely dense object called singularity suddenly expanded and that marked Theory the beginning of the universe. Space, time, forces, energy, and matter were created after the Big Bang. Evidence Edwin Hubble’s Red Shifting Abundance of Hydrogen in the Universe Accidental discovery of Cosmic Microwave Background Radiation HUBBLE’S RED SHIFTING Red Shifting Balloon Analogy Cosmic Microwave Background radiation (CMB) The Big Bang Nucleosynthesis 1 p + 1 n 2 H 1 0 1 2 H+ 1 n 3 H 1 0 1 3 H+ 1 p 4 He 1 1 2 3 H+ 4 He 7 Li 1 2 3 OTHER PATHWAYS: 2 H+ 2 H 4 He 1 1 2 OTHER PATHWAYS: 2 H+ 2 H 3 He + 1 n 1 1 2 0 Big Bang Nucleosynthesis The lightest elements such as H, He, and some trace of Li were the only elements formed in the Big Bang Nucleosynthesis. Stellar Nucleosynthesis Elements starting from He up to Fe were the only elements that can be formed within stars through Stellar Nucleosynthesis.