Robittybob1

That is as measured by the observer at R. I want to know if you think all parts of the wave at a distance of R from the barycenter are going to have the same intensity at any one "t"? If that was so the GW would be a pulsing signal. I have never seen that description before.

I'm starting to get your picture. So none of the energy density is actual particles of matter so it all can be moved at the speed of light, is that what you are implying?

Can you move energy density around at the speed of light?

It sounds like the Rover ran over a Martian. Good Job.

Let Mordred answer it. If there is mass outside the EH and the EH expands or reshapes how is that mass moved about? There is no issue if the EH is only a location and not a thing with mass around it. But then if it is not a thing why does it matter if they touch when the merger is inspiraling? To me it is a tricky situation.

So you would swear that each wavefront is a complete sphere around the barycenter? From one peak intensity to the next how do you get the next pulse in your model? That is the bit that is stumping me.

If there is mass at the EH is it going to move at c? if there is mass there as Mordred says can the EH move at that speed. What does it do with the mass?

http://arxiv.org/pdf/1506.00560.pdf "Possible golden events for ringdown gravitational waves" This was the paper making predictions about the internal structure of the BH. If there is a lot of mass above the EH (#2) how can the two EHs instantly combine (#3). Do you agree the EH can change shape? (#3) What happens if the EH is spinning as well? Can it change shape and spin at the same time. Where is that mass when it goes through these motions as well as orbiting each other.

look at posts #2 and #3 can both of those physical situations be married together.

I tried to review the thread but there seems to be more than one view. Do you agree with what Strange has been saying? I can't read both of your posts (Mordred and Strange) and combine the ideas. I therefore can't review the thread. Unless each of you say yes I agree or disagree to a former post. Only then would I know you both are talking about the same concepts and they can be combined.

I saw one paper that looked at the ringdown features to try and make some predictions about what was happening beyond the EH. I can't say I understood their reasons. But it will make a difference to the way the ringdown frequencies change.

exactly - it was a long long way away.

Does that mean we can't estimate the energy density of the EH but we could do it for the whole black hole?

Have you seen the error bars for the estimated distance to GW150914. If we knew the distance down to the last 10,000 km we wouldn't be having this debate. Luminosity distance 410 þ160 −180 Mpc massive uncertainty there.

The right answer to those equations is not the 3D structure but the strain at a large distance from the barycenter.

it is like "pressure" e.g. pounds per square inch. If the EH is just a surface then the OP is a valid question "What difference does it make if the Schwarzschild radii Event Horizons touch? It would be a totally different situation if there was extreme amounts of mass at that surface. I need a bit of time to review the thread to see if I have misunderstood what has been said please.

I want to know where that mass is in relation to that area.

Tha That was because to simplify the equation they use the barycenter as the point source of the GWs. So unless you happen to agree that GWs are sourced from the barycenter I don't think we can deduce any 3D structure from that. That was where the equations are found in that link that is all.

I have just done the calculations I was suggesting above and I am surprised by the answer. I looked at 3 BHs Mass1 = 36, Mass2 = 29 and Mass final = 62 (solar masses) These are the masses in kg 7.16E+31, 5.77E+31, 1.23E+32 And their Schwarzschild radii 1.06E+05 8.55E+04 1.83E+05 area of sphere with this radius: 1.33E+06 1.08E+06 2.30E+06 then I worked out how much mass each BH had for every m^2 of area of the event horizon and they were all the same! mass/m^2 5.3655E+25 5.3655E+25 5.3655E+25 Mass of Earth 5.972 × 10^24 So for each square meter of the event horizon the BHs have 8.98 times the mass of the Earth. Have I done my calculations wrong? I see the error I didn't use r^2 in my area calculations area of sphere with this radius: 1.42E+11 9.20E+10 4.20E+11 then I worked out how much mass each BH had for every m^2 of area of the event horizon: 5.0524E+20, 6.2719E+20, 2.9336E+20 So for each square meter of the event horizon the BHs have: 8.46E-05, 1.05E-04, 4.91E-05 Earth masses Where is this mass WRT the BH? Is it at/near the singularity?

What did you think it meant?

I was just repeating what the wikipedia article said "If R is much greater than a wavelength,....". I had not specifically tested this aspect. https://en.wikipedia.org/wiki/Gravitational_wave#Wave_amplitudes_from_the_Earth.E2.80.93Sun_system

Could you direct me to a paper that explains the current thinking of what a black hole is like please? I find your answers really confusing. We must be talking about completely different things.

Was that an answer to my question #51?

Could you identify which part of the DNA could code for "an evolved characteristic". That is what I mean by "engineered". Is it in the genetic material? Is it coded memory?

An instinctive behaviour? What do you think? Are instincts genetic? It has been something I have been trying to understand.