Why can't we use solar type stars as spiral tracers? What type of stars make good spiral tracers? Why? What characteristics do they have to perform this function?
Science: Astronomy - SraJMcGin, Thursday, July 15, 2010 at 8:23pm
You might begin here:
Science: Astronomy - drwls, Friday, July 16, 2010 at 7:29am
I am unfamiliar with the term "spiral tracer" so had to look it up. It applies t "giant molecular clouds and HII regions". My guess is thet "solar type" (main sequence) stars are not found in such regions.