MODULE 2 PART 3: Stellar Nucleosynthesis

Question 1

In 1920, he suggested that nuclear fusion happens in the stars

Answer 1

• Arthur Eddington

Question 2

Developed a formula calculating the probability of the reactions taking place

Answer 2

• George Gamow

Question 3

In 1939, he proposes proton-proton cycle and CNO cycle

Answer 3

• Hans Bethe

Question 4

He proposes that heavier nuclei were formed in the interiors of a star and ejected to the interstellar gas

Answer 4

• Fred Hoyle

Question 5

Who are the two (2) people that further developed and explained the stages of nucleosynthesis?

Answer 5

• Alastair Graham Walter Cameron
• Donald Delbert Clayton

Question 6

What are the other types of Nucleosynthesis?

Answer 6

• Explosive/Supernova Nucleosynthesis
• Cosmic Ray Spallation

Question 7

The process takes place during the explosion of a star. Elements such as silicon and nickel are through fast fusion

Answer 7

• Explosive/Supernova Nucleosynthesis

Question 8

The impact of fast protons or cosmic rays against the interstellar medium results in this phenomenon. During the process, heavier nuclei of carbon or oxygen fragment into lighter elements such as Be, B and Li, making these elements more abundant compared to the ratios that result by other types of nucleosynthesis.

Answer 8

• Cosmic Ray Spallation