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Old 13-August-2007, 03:31 PM
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Amber Robot Amber Robot is offline
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Quote:
Originally Posted by Bancor View Post
I'm aware that that my contribution to this discussion is absolutely insignificant, but I can't help noting that the (in)famous ATMers mantra "...look at the picture!" is well rooted amongst the mainstreamers too, and no one does complain about it.
My suggestion to "look at the picture" was to point out that the quasar host galaxies look like distant galaxies. And that there are no local analogues to these galaxies that don't contain quasars. After looking at the picture, you should look at the spectra, analyze their redshifts, metal contents, ionization structure, star-formation histories, and stellar populations. All of these will give you some clue as to whether these are local objects or not.

I am not explicitly stating that quasars aren't local objects spat out of galaxies and creating mini-spirals, I'm arguing that you can't make that the statement that are local based solely on their relative positions to nearby galaxies. There is a virtual cornucopia of spectral and photometric information about the quasars themselves and their host galaxies that need to be taken into account and formulated into a coherent picture of what these objects are.