- #1
Andrew Church
- 4
- 0
The question “how do we know the composition of the sun” falls shorts everywhere I look.
1. There is the spectral absorption lines. Explanations given how that works, indicate how we know the elements, but fails to tell us how we know about the preponderance of Hydrogen and Helium.
“https://www.physicsforums.com/threads/how-do-we-know-what-the-sun-is-made-of.64077/
2. The Cecilia Payne story tells us she used ionisation theory developed by and Indian physicist, which somehow effects the absorbsion lines dependant on temperature, to be the first to declare that Sun was mostly Hydrogen in her 1925 PHD thesis, although she described her result as “spurious” because...
3. Henry Russell he told her it was crap, but he changed his mind after having derived the same result by different means and publishing it in 1929, but he did give her some credit, nice of him!
MY QUESTIONS:
1. What is the basic story of how with ionisation theory and spectral absorbsion lines, we can determine the proportion of the elements we observe in the spectral lines?
2. What are the “different means” Henry Russell used to come to the same conclusion and how do they work?
1. There is the spectral absorption lines. Explanations given how that works, indicate how we know the elements, but fails to tell us how we know about the preponderance of Hydrogen and Helium.
“https://www.physicsforums.com/threads/how-do-we-know-what-the-sun-is-made-of.64077/
2. The Cecilia Payne story tells us she used ionisation theory developed by and Indian physicist, which somehow effects the absorbsion lines dependant on temperature, to be the first to declare that Sun was mostly Hydrogen in her 1925 PHD thesis, although she described her result as “spurious” because...
3. Henry Russell he told her it was crap, but he changed his mind after having derived the same result by different means and publishing it in 1929, but he did give her some credit, nice of him!
MY QUESTIONS:
1. What is the basic story of how with ionisation theory and spectral absorbsion lines, we can determine the proportion of the elements we observe in the spectral lines?
2. What are the “different means” Henry Russell used to come to the same conclusion and how do they work?