Quote:
On 2001-11-14 19:39, Rosen1 wrote:
That's the problem, not the solution.
The normal Newtonian formulas (i.e., Doppler shift with Galilean invariance) don't work.
<font size=-1>[ This Message was edited by: Rosen1 on 2001-11-14 19:45 ]</font>
|
Rosen1,
I'm not sure of the relevance of this. My apologies if I missing the point.
The Davis and Lineweaver work is based on GR which incorporates the two fundamental postulates of SR: "c" is constant for all observers and there is no preferred inertial frame. Implicit in the SR derivation is that space is flat, and of course this is not true in GR. In the FRW metric, locally space is approximately flat and SR holds.
The main point of the paper is that we can't use the (special) relativistic Doppler shift to measure recession velocity for high redshift objects. If we can't use the relativistic Doppler shift, why would we think that the Gallilean Doppler shift should hold?
No one is arguing against SR. We're trying to establish when we need to move from SR to GR.
<font size=-1>[ This Message was edited by: Wiley on 2001-11-15 13:13 ]</font>