Gravitational Red Shift at the center of a mass

AI Thread Summary
Gravitational redshift (GRS) is not neutralized at the center of a mass, despite gravity being neutralized in that location. While the gravitational force is uniform and there is no acceleration, the effects of time dilation persist due to the presence of gravity. This means that even at the center of a perfectly spherical mass, the dilation of space-time continues to occur. Therefore, the center experiences time dilation effects, which are distinct from gravitational acceleration. The discussion highlights the complexity of gravitational effects even in regions where gravity appears neutralized.
j bramblejam
Messages
1
Reaction score
0
I understand we can calculate that gravitation is neutralized at the center of a mass - say, a planet or star (or anywhere within a spherical shell); I wondered if the GRS is also neutralized, or if being pervaded by gravity - however neutralized - the dilation of space-time persists therein.
 
Astronomy news on Phys.org
Remember that the center of an object (assuming it is perfectly sphereical) will NOT have a difference in gravity from any point. This means that there will not be any acceleration or redshift in anyone direction.

However, there is still gravity at that point. That means that the center will still experience all the effects of time dilation and such.
 
This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...
Asteroid, Data - 1.2% risk of an impact on December 22, 2032. The estimated diameter is 55 m and an impact would likely release an energy of 8 megatons of TNT equivalent, although these numbers have a large uncertainty - it could also be 1 or 100 megatons. Currently the object has level 3 on the Torino scale, the second-highest ever (after Apophis) and only the third object to exceed level 1. Most likely it will miss, and if it hits then most likely it'll hit an ocean and be harmless, but...

Similar threads

Back
Top