In transit gravitational redshift

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20 years 7 months ago #8744 by Larry Burford
For any given object, redshift can have more than one cause. Gravitational potential, radial velocity and graviton drag have been discussed on this board. There are other known causes IIRC, and probably some that are not yet known.

For any given object, the value observed at one meter may not be the same as the value observed at one lightyear.

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20 years 7 months ago #8747 by DAVID
Replied by DAVID on topic Reply from
Jim, I’m waiting for your response. How does a “gravitational redshift” increase with distance?

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20 years 7 months ago #8748 by Jan
Replied by Jan on topic Reply from Jan Vink
LB,

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Larry Burford</i>
<br />For any given object, redshift can have more than one cause. Gravitational potential, radial velocity and graviton drag have been discussed on this board. There are other known causes IIRC, and probably some that are not yet known.

For any given object, the value observed at one meter may not be the same as the value observed at one lightyear.
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

I'd like to add "tired light" to the list of redshift inducing mechanisms as well, for it seems intuitive plausible that light could lose a fraction of its energy while travelling through space.

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20 years 6 months ago #8793 by n/a10
Replied by n/a10 on topic Reply from ed van der Meulen
Great postings David.

Listening to other scientists. I like that very much.

Let's look now first to the question what is time? How do we measure it. Do we have more answers? Why?

We are too much isolated I think.

Our thinking runs on, but be have to listen to the reality as well.

Ed

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20 years 6 months ago #8832 by Jim
Replied by Jim on topic Reply from
Hi David, I guess I missed the last two posts you made two weeks back about redshift caused by gravity. I see two kinds of redshift Doppler and Hubble and the difference is one is a result of speed(doppler) and the other by acceleration(Hubble). I know it is assumed both types of redshift are caused by speed. I disagree with the assumption and see acceleration as a cause of redshift that is quite different than Doppler redshift in that it is always in one direction whereas Doppler is in two directions. Gravity causes Hubble redshift in all cases and it is measured in acceleration units. Doppler redshift is measured in velocity units. How gravity causes the redshift is a mystery as deep as gravity itself. How does gravity make things go round? I don't know thats for sure. Sorry for the delay in posting this reply.

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20 years 6 months ago #9662 by n/a10
Replied by n/a10 on topic Reply from ed van der Meulen
Gravity is the big problem. It's a field, it's a wave, could it be a particle? Gravity goes through matter, infects it but goes on itself like there was nothing. It's not shielded. So indeed please explain me also what is gravity.

How can some see a particle in gravity. It's more the opposite of a particle, like a field has two sides. A particle side and a gravity side. Normaly in particles conected, but gravity free as a gravity field.

More people have to think about this.

Have a nice day

It's for me bedtime, good night

Ed van der Meulen

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