Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I What is the most general form of Hubble's law?

  1. Feb 13, 2017 #1
    Is the Hubble's law(recessional velocity linearly proportional to distance) valid for all cases even when the spacetime is curved? Is there a nonlinear model for Friedman models or it's always linearly proportional?
     
  2. jcsd
  3. Feb 13, 2017 #2

    Jorrie

    User Avatar
    Science Advisor
    Gold Member

    Any non-static spacetime (expanding or contracting) is always curved, so yes, the linear distance-recession rate relation (Hubble's law) always holds. The distance-redshift relation is non-linear and depends on the curvature of space (the spatial curvature-density parameter).
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: What is the most general form of Hubble's law?
  1. Hubble's law (again) (Replies: 9)

  2. Hubble's law (Replies: 8)

Loading...