What is so peculiar about stars?

I have heard J talk about his research a lot and even tried to help him out when he is working on the couch. So, as such I deem myself a puppy expert on his field of research. Perhaps the only puppy expert in his field. I will try to explain his research in a way that any puppy can understand.

J looks at squiggly lines and tries to fit other squiggly lines to them to see how much of a certain element exists in the atmosphere of the star. He says they are called spectra but they are just squiggly lines to me. He even claims to know what some of the especially deep troughs are due to but I don't think he has it quite right. He calls a lot of them Iron, or Chromium or Helium, but I know better. The ones that he calls Iron are actually banana lines, Helium is Peanut butter lines and Chromium is cheddar cheese lines. J looks at peculiar A type stars. He is trying to determine the abundance of different elements compared to the Sun. Apparently these stars are over abundant in banana and cheddar cheese compared to the Sun while there is an under abundance of peanut butter...booo!

He also says that these stars have really strong magnetic fields. Apparently these fields can lock in the banana and cheese and all the other yummy things into certain patches within the atmosphere of the star. By observing different phases he can apparently figure out where these patches are and what the field strength of the magnetic field is.

So there you go! The strong magnetic field and the over/under abundance of certain elements as compared to the Sun is what makes these stars peculiar. Personally I think the fact that they have banana, peanut butter and cheese in their atmospheres is pretty peculiar. Tee Hee.