Arp wound up getting denied telescope time in the US and moved to Europe. Somewhere around here I’ve got a book I picked up used about new ideas in astronomy (new at that time) which has a long favorable discussion of Arp’s ideas. Basically, the red shifting of visible results from interstellar hydrogen which, though not very dense, alters the light on its long trip to Earthbound observers, whereas the xray spectra show good separation and aren’t red-shifted. Arp’s is the only explanation based on the facts (and it’s the simplest).
To ask for the reason that could account for the hostility and antipathy towards Arp in "elite" scientific circles, dear SunkenCiv, is likely to step on many elite (and well-funded at taxpayer expense) toes, with vested interests at stake, in many cases reaching into the political sphere....
Look at who "elite science" is "beating with sticks" nowadays. Then listen to what these "victims" have to say. [That would definitely include Professor Arp IMHO.]
If we are willing to do that, THEN science could get really interesting!!!
As an aside, it seems to me FWIW that "elite science" was a heck of a lot more honest a hundred years ago than it is today.
Thank you ever so much, SunkenCiv, for writing!