- #1
Zman
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- TL;DR Summary
- gravitational redshift units seem to be given as a velocity and not as a ratio
I noticed in physics papers that gravitational redshift is expressed in m/s or km/s.
I assume that this must be the equivalent velocity to produce that same redshift.
So for example, if the gravitational redshift was measured as 3x10 ↑ -4 then;
z= v/c
3x10^-4= v/c
v = 9x10^4 m/s
v=90km/s
Is this what they are doing? Why do they prefer velocity over the ratio z?
I assume that this must be the equivalent velocity to produce that same redshift.
So for example, if the gravitational redshift was measured as 3x10 ↑ -4 then;
z= v/c
3x10^-4= v/c
v = 9x10^4 m/s
v=90km/s
Is this what they are doing? Why do they prefer velocity over the ratio z?
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