Hi Folks;
I'm finding this paper, "The Kinematic Origin of the Cosmological Redshift" to be very helpful for learning how to communicate with others on this topic (for those interested). Great learning paper, reasonably easy to read, also. (Dated: April 14, 2009).
It dances around the different interpretations of redshift from several different perspectives.
Some notable quotes:
"A common belief among cosmologists is that the cosmological redshift cannot be properly viewed as a Doppler shift (that is, as evidence for a recession velocity), but must instead be viewed in terms of the stretching of space. We argue that the most natural interpretation of the redshift is in fact as a Doppler shift, or rather as the accumulation of many infinitesimal Doppler shifts."
"In the context of the expanding Universe, the kinematic interpretation corresponds to a family of comoving observers and hence seems to be the more natural one."
"The common belief that the cosmological redshift can “only” be explained in terms of the stretching of space is based on conflating the properties of a specific coordinate system with properties of space itself. This is precisely the opposite of the correct frame of mind in which to understand relativity."
Very cool .. then I read the "Acknowledgments" section:
"We thank Sean Carroll, Jim Peebles, Dave Spiegel, and Ned Wright for helpful comments."
My thanks to Carl (again) for leading me to this one.
Cheers
PS: Apologies if this is 'old hat' for some. I mean this message as a 'heads-up' for learning junkies .. like me ..
