comoving การใช้

• They are comoving and inertial before and after this phase.
• The upshot is that time flows at different rates for comoving observers.
• It is possible to define comoving coordinates within special relativity.
• Comoving distance defines this connecting curve to be a curve of constant cosmological time.
• In the comoving coordinates, u is equal to the mass density \ rho.
• Operationally, comoving distances cannot be directly measured by a single Earth-bound observer.
• I think comoving time interval, it is about 13.7 billion years ".
• Where \ vec { k } is the comoving wavenumber and the hats denote Fourier transforms.
• In a comoving frame, the dumbbell clearly exerts gravity as fits a 1kg rest mass.
• Instead, space itself expands with time everywhere and increases the physical distance between two comoving points.
• In the Rosen chart, these appear as vertical coordinate lines, since that chart is comoving.
• That's basically what I called a " comoving clock " in my simplified explanation above.
• A non-zero, time-dependent value of q simply requires comoving horizon size was zero.
• Non-comoving observers will see regions of the sky systematically blue-shifted or red-shifted.
• This redshift also implies a comoving distance from the earth of about 13.2 billion light years.
• The velocity of an observer relative to the local comoving frame is called the peculiar velocity of the observer.
• Occasionally, the symbols \ chi or r are used to denote both the comoving and the angular diameter distance.
• :The comoving frame of an object on the surface of the Earth is not an inertial frame of reference.
• Due to the expansion of the universe, this position is now at about ( comoving distance ) from Earth.
• Proper distance is also equal to the locally measured distance in the comoving frame for " nearby " objects.