what is the evidence for the claim that iron exists in the atmoshpere of the sun?

Answer 1

Probably lines in the sun's spectrum that are characteristic of iron excitations.

Answer 2

Spectrographic analysis. When excited, various elements emit light in various discrete wavelenths. You can look at the light and by analysing the color spectrum, identify the elements that are in the object which is excited (at high temperature). The simplist instrument for doing this is just a prism. with a moving slit to separate out various parts of the spectrum.

Answer 3

All elements have highly characteristic *absorption* lines where they absorb a very narrow band of wavelengths corresponding to transition energy of electrons bound to the atom. This results in very narrow *gaps* in the solar spectrum called Fraunhofer lines. They identify the elements in the sun's atmosphere that block that light.

Answer 4

May 27 2005, NASA took an image of the sun using the 195A filter that is sensitive to iron ion emissions. they discover that the surface crust of the sun is mostly made of iron. It is likely however that the surface varies in iron content from one part of the crust to another. Parts of the surface may look much like the fragment above, while other regions along the surface may contain more iron. go to this site to see the image http://www.thesurfaceofthesun.com/

Answer 5

Spectral lines from ionized iron.

Answer 6

Nobody that I know of, can claim such an impossible hypothesis,,,,
In the nuclear fusion of the sun, which is in the state of plasma, only atoms of hydrogen can exist....No elements as such can exist even in the surface of the sun, where all the matter....is in a state of subatomic particles, so its impossible to find ANY element other than dynamically unstable hydrogen.....