Question

pulsation theory was proposed by ​

Answer 1

Answer:

The pulsation theory was first proposed as a possible explanation as early as 1879, was applied to Cepheids in 1914, and was further developed by Arthur Eddington in 1917–18

Answer 2

• Pulsation theory was first proposed by German scientist August Ritter.

Later developed by Arthur Eddington.

• He was born in 1882, December 28.

• He initiated and proposed the pulsation theory of Cepheid variable stars.

• In the study of cepheids, they are associated with different groups of stars.

• They show continuous velocity curves indicative of regular pulsation.