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Questions tagged [frame-dragging]

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2 votes
2 answers
107 views

How do we account for the 'one way' drag of moving space?

As I understand it, the rotating space outside a Kerr black hole drags radially falling particles into circular motion. Similarly the river model posits that the inward flow of space ensures particles ...
KDP's user avatar
  • 5,551
8 votes
1 answer
2k views

Is this an actual photo of frame dragging?

Is this new image (below) of polarized light surrounding Sagittarius A, showing actual frame dragging being captured by the magnetic field? The image is from this article If not, how would a photo ...
foolishmuse's user avatar
  • 4,741
0 votes
0 answers
5 views

What angle would frame dragging shove matter in the innermost accretion disk relative to the equatorial plane or orbit?

I understand that frame dragging will imbue momentum on plasma orbiting a black hole at close range. My first question is - is this kinetic energy inserted very narrowly relative to the equatorial ...
Khannea's user avatar
-1 votes
1 answer
64 views

What's the difference between these two frame-dragging equation?

Conceptually, what is the difference between these two frame-dragging equations, describing the rate of angular velocity of the space around a symmetrically spherical mass such as a black hole and why ...
Tivity's user avatar
  • 287
1 vote
1 answer
27 views

Do frame dragging affects falling object?

Imagine there is a tall tower erected at the equator, a pulse of light is beamed from the top of the tower to the ground. Do I need to consider frame dragging? After all the spacetime is being tucked ...
user6760's user avatar
  • 13k
2 votes
0 answers
41 views

What will happen to the light due to frame-dragging?

Imagine a rotating black hole is blocking a cluster of stars that I'm observing. Thanks to gravitational lensing I could still see the stars albeit shifted away from their original locations. So now ...
user6760's user avatar
  • 13k
0 votes
0 answers
32 views

Is there a known formula of the speed distribution of distinct layers in the frame-dragging region of a BH?

I am asking this question only because I want to figure out does space move in this case similarly to a fluid like water or oil are or even more better as speeds o planets around a star.. or this ...
jbradvi9's user avatar
  • 467
0 votes
1 answer
85 views

Gravitomagnetic Field vs Distance

If we look at what the Wikipedia says about gravitomagnetic fields $B$ generated by rotating planets / stars we have: https://en.wikipedia.org/wiki/Lense%E2%80%93Thirring_precession#...
Phil Bouchard's user avatar
2 votes
0 answers
52 views

Can linear frame dragging cause gravitational dipole radiation?

I have just learned that linear frame dragging exists in General Relativity. I have also seen simulations where a periodically accelerated and decelerated mass causes a sort of gravitational dipole ...
ramiel46692's user avatar
1 vote
1 answer
48 views

Space mission for experimental verification of frame-dragging in the strong-gravity limit

Frame-dragging is an important general relativistic effect that has been observed in the weak-field limit by the Gravity Probe B experiment for the gravitational field of the Earth. Although the ...
Richard's user avatar
  • 2,015
-4 votes
2 answers
102 views

Speed of light affected by gravity or frame dragging effect

If we do not really 100% know how light works as a oscillation we also do not know is its speed indeed constant no matter is there a space or space-time motion that can affect it. Could a device that ...
Krešimir Bradvica's user avatar
0 votes
0 answers
18 views

Space expansion and change of electromagnetic radiation wavelenght

The expansion of the universe acts to a photon ray equally as an expanded baloon on points drawn on it just increasing the distances between this differential photons so the integral photon looks like ...
Krešimir Bradvica's user avatar
3 votes
0 answers
50 views

Thirring-Lens 1918 Paper seems to be wrong in the numeric results. Am I misreading it?

The 1918 paper that is often considered a basis for frame dragging (a copy is at http://www.neo-classical-physics.info/uploads/3/4/3/6/34363841/lense_thirring_-_lense-thirring_effect.pdf) seems to say ...
Ralph Berger's user avatar
0 votes
0 answers
73 views

Frame dragging in vicinity of rotating black hole

I am trying to understand subject effect in the framework of general relativity. Wikipedia says as follows: imagine that a north–south-oriented ice skater, in orbit over the equator of a rotating ...
i_prob_should_know_this's user avatar
2 votes
1 answer
67 views

Particle motion due to frame dragging near a pulsar?

PSR J1748−2446ad is the fastest known pulsar rotating at 716 times per second. This neutron star is estimated to have a mass of less than two solar masses and a radius of less than 16km. The linear ...
Roger's user avatar
  • 71

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