Questions tagged [frame-dragging]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
0 answers
29 views

Could bremsstrahlung provide evidence that a Black Hole (BH) forms the underlying geometry of the electron?

There are several proposals that model electrons as BHs. For example, A. Burinskii proposes a spinning soliton on a Kerr-Newman BH geometry (enhanced to an MIT bag model in “New path to unification of ...
user avatar
  • 1
1 vote
1 answer
29 views

How much percent of the speed of rotation of the solar surface at the equator is due to frame dragging effect? [closed]

Frame dagging effect is interesting and my particular interest is does this rotation could be compared with the law of motion of planets in a system similar to our Solar system and also can we measure ...
user avatar
1 vote
1 answer
111 views

What spins as a black hole? (lame question) [duplicate]

Obviously I am not a physicist. I have seen What is black hole spin? but this is not what puzzles me. If I understand correctly, black hole has only three features (please correct me): angular ...
user avatar
  • 239
2 votes
3 answers
391 views

Would our orbit really remain the same if the sun were a black hole of equal mass?

There seems to be an idea floating around that the sun could be replaced by anything of equal mass with no consequence to our orbit. It seems to me that if the mass of the sun were confined to a ...
user avatar
2 votes
1 answer
49 views

Is the rotation of Gravity Probe B's frame dragging precession in the same direction or opposite direction of Earth's rotation?

First, thank you to the community for answering questions like this, it is much appreciated. Second, I did try to find the answer online first, and I believe from some images that the direction of ...
user avatar
1 vote
0 answers
42 views

How do I reconcile (what I see as) an apparent difference in the frame dragging formula used for Gravity Probe-B versus Lageos?

The frame dragging impact above the north pole is given at NASA's Gravity Probe-B website as: $$\Omega = \frac{GI\omega}{c^2r^3}.$$ That is, when the satellite is above the pole, it rotates with the ...
user avatar
0 votes
0 answers
37 views

Doubt regarding Lense-Thirring effect

I am working on a problem to find the Lense-Thirring force on a test particle moving in the field of a rotating star. The Lense-Thirring term arises due to the coupling of the spin of the rotating ...
user avatar
  • 1,622
0 votes
0 answers
15 views

Would kinks in Cosmic strings produce frame dragging?

If a kink were to shoot down a cosmic string, would it drag space with it, as a planet does with its rotation?
user avatar
2 votes
1 answer
40 views

Does frame dragging impart momentum?

Let's say a large object (think runaway planet) passed a much smaller one. The larger object's frame dragging distorts the space inhabited by the smaller object, so that it appears to briefly follow ...
user avatar
0 votes
1 answer
34 views

Will an object with linear velocity in outer space experience frame dragging effects?

Will an object moving non-accelerated in outer space experience frame-dragging? It seems the mass contributions to the strdss-energy-momentum tensor are distributed spherically symmetrical, and don't ...
user avatar
  • 1,655
0 votes
2 answers
42 views

What distant observer would see if spaceship remains insitu just outside event horizon?

Imagine 2 spaceships found themselves just outside the event horizon of a blackhole, spaceship A tries to remain in place relative to the black hole while B accelerates around the blackhole. To a ...
user avatar
  • 11.4k
0 votes
0 answers
30 views

Gravity Probe B and the gravitomagnetic acceleration (frame dragging)

How could 1 gyroscope prove both the geodetic effect and the frame dragging? The geodetic effect is orders of magnitude greater than the "shadowed" frame dragging.
user avatar
0 votes
0 answers
24 views

If a spinning black hole can produce orbital frame dragging can it produce linear frame dragging at the poles?

If no particle or radiation can escape the BH event horizon but nevertheless we can see polar astrophysical jets comming from the black hole can we assume that there is a possibility of linear frame ...
user avatar
4 votes
2 answers
110 views

How is electromagnetic induction analogous to gravitational frame dragging?

This wiki says: https://en.wikipedia.org/wiki/Frame-dragging Qualitatively, frame-dragging can be viewed as the gravitational analog of electromagnetic induction. I was wondering what exactly this ...
user avatar
  • 752
0 votes
0 answers
32 views

Could quantum vacuum polarization increase GR frame dragging beyond the predicted values and therefore replace DM explanation of galactic rotation? [duplicate]

image source credits:David Butler This anomalous speed rotation distribution of galaxies is today mainly contributed to Dark Matter. However, since a definitive experimental measurement and ...
user avatar
  • 3,035
0 votes
0 answers
29 views

Equivalence Principle Frame Dragging

Why do metric equations of a rotating body (like Kerr Metric for black holes or EFE solution for rotating bodies) contain a dt dphi term, leading to rotational frame dragging effects? Please don't ...
user avatar
  • 375
3 votes
1 answer
74 views

Is there a possibility of frame dragging inside the event horizon?

Is there a possibility of frame dragging inside the event horizon? If frame dragging is related with gravity and space and as the black hole fills a space and produces a gravitational effect that ...
user avatar
1 vote
1 answer
71 views

Does Earth's rotation affect the orbital velocity of its satellites?

We all know about the spin of black holes. That spin and of course it's gravity determines the minimum distance a star can orbit the black hole with a min orbital velocity. Do we see similar result? ...
user avatar
  • 188
0 votes
0 answers
16 views

How much differs the Mercury speed at perihel from its theoretical speed with no frame dragging involved?

How much differs the Mercury speed at perihel from its theoretical speed with no frame dragging involved? Can a formula of frame dragging velocity be calculated regarding the distance of a point of ...
user avatar
0 votes
1 answer
49 views

Does light travel same distance in same time not depending of the path orientation regarding Earth's surface?

Does light travel the same distance at the same time regardless of the path orientation? The light in the proximity of a gravitational source can bend its trajectory and frame-dragging can cause the ...
user avatar
0 votes
0 answers
52 views

If a very massive object enters in a rotating black hole retrograde orbit should it slow down the black hole's spin?

If a very massive object is orbiting retrograde around a rotating black hole, would it slow down the black hole's spin? Of course, due to its interaction with the black hole's rotating frame, better ...
user avatar
0 votes
1 answer
73 views

Is it true that frame-dragging (as applied to galactic rotation curves) goes as second order in $v/c$ rather than $(GM/Rc²)(v/R)$?

I have seen various people (see e.g. comments here) dismissing this article using the argument that GR frame-dragging is second order in $v/c$ and therefore insignificant because $v << c$ for ...
user avatar
10 votes
4 answers
895 views

Does the twist of spacetime by a black hole increase over time?

From the Wikipedia page about Ergospheres: As a black hole rotates, it twists spacetime in the direction of the rotation... Does this "twisting up spacetime" add up over time in any ...
user avatar
0 votes
1 answer
59 views

Can the curvature of space-time be also described as a 'frame' (space) whirlpool?

Can the curvature of space-time be also described as a 'frame' (space) wirlpool? When we talk about the Schwarzschild metric it can be immagined as a curved manifold but in the Kerr metric it seams ...
user avatar
1 vote
0 answers
15 views

What is the relative importance of the Coriolis term to the precession term in frame dragging by rotating Kerr black holes?

The Wikipedia entry for Thirring precession describes the Coriolis term as separate from the precession term. Is it fair to say that when looking at the dynamics of a rotating black hole, the ...
user avatar
0 votes
1 answer
40 views

Does frame-dragging continuously strectch spacetime?

Frame-dragging deforms spacetime around a rotating spherical, isotropic distribution of matter (the distribution doesn't change in time). The spacetime is a little bit dragged away from the ...
user avatar
0 votes
0 answers
26 views

The Sun bends planets' trajectory and speeds up it towards the perihelion; does it both actions with light? [duplicate]

The Sun bends planet's trajectory and speeds up it towards the perihelion; does it both actions with light? If it speeds up light too, then does it mean that gravity is a consequence of a vortex that ...
user avatar
7 votes
1 answer
202 views

Is there linear 'frame dragging'?

Very massive objects cause the so called 'frame dragging' that can increase the speed of a beam of light to a total aggregate speed faster than the speed of light in normal circumstances so my ...
user avatar
0 votes
0 answers
19 views

Can somebody describe the frame dragging around Sagittarius A at the center of our galaxy?

I need to be able to visualize it, specifically the number of turns and how it relates to the horizons in the black hole and what would happen to something falling in also described. Has anyone ever ...
user avatar
1 vote
1 answer
31 views

How do frame dragging affects a photon for outside observer?

I remember an analogy that explained this phenomenon using magnetic field, a charged particle will experience a force next to another spinning charged particle or something like that. But I don't want ...
user avatar
  • 11.4k
6 votes
1 answer
236 views

Has frame dragging been accounted for in galactic rotation curves?

This article explicitly takes frame dragging into account in calculating expected galactic rotation curves in the absence of dark matter, and appears to obtain very close matches to observed curves. ...
user avatar
  • 24k
0 votes
1 answer
81 views

Speciality of rotating black holes? [closed]

I have read that there are different properties of black hole which are rotating like, they drag the spacetime, with them. Also I read that they have kind of 'ergosphere' along with event horizon. ...
user avatar
3 votes
0 answers
80 views

Frame dragging Warp drive [closed]

Is it possible to use frame dragging to make a warp drive? For example: a space ship with "frame dragging generators" that constructively interfere between them to let space be dragged in ...
user avatar
1 vote
2 answers
60 views

While 'frame dragging' is the 'frame' just orbiting or is it even spiralling into the source of gravity?

While 'frame dragging' is the 'frame' just orbiting or is it even spiralling into the source of gravity causing anti-dark-energy effect?
user avatar
2 votes
1 answer
158 views

Einstein introduced General Relativity 2.0

I stumbled upon the following article: https://www.livescience.com/einstein-biggest-failure-teleparallel-gravity.html . The following quote is taken from the mentioned article. In his attempts to ...
user avatar
  • 655
5 votes
1 answer
104 views

Can rotation be distinguished from frame-dragging?

I am trapped inside the usual elevator and experiencing a comfortable gravitational field of about 1 g. Or perhaps it's an acceleration of 1 g. I cannot tell which. However, I notice when I drop an ...
user avatar
  • 2,462
2 votes
0 answers
27 views

Does the gravitomagnetic model for frame dragging imply that objects be "sped up" to rotating speed based on their inertia?

As a specific example, consider a needle on a torsionless thread lowered from deep space over a rotating planet's pole. The needle will spin at a specified rate (based on elevation, planet inertia ...
user avatar
1 vote
1 answer
174 views

General relativity and absolute rotation

Are both centrifugal force and Coriolis force really fully explained by what is called "frame dragging" in GR? And if that is correct, does this concept "frame dragging" solve the ...
user avatar
0 votes
1 answer
68 views

Does the gravitational distortion of a black hole depend of its rotation?

I would like to know if there is a difference produced by the added spin of a black hole to its gravitational space-time distortion. I am considering the distortion of space-time from a point far ...
user avatar
2 votes
1 answer
48 views

Does stellar rotation change the degree of spacetime curvature?

The Schwarzschild solution from general relativity defines the spacetime of a spherically symmetric body in a vacuum. During this derivation, the stress-energy tensor is set to zero and the solutions ...
user avatar
  • 828
0 votes
0 answers
35 views

Frame dragging affecting bending of light

If the frame dragging causes precession of an orbit does it mean that due to the rotating character of space the amount of bending of light will be added to the angular displacements of spacetime ...
user avatar
0 votes
0 answers
68 views

Spin rotation of masses in a rotating gravitational field around a black hole

If a rotational gravitational field affects masses in the way the frame and body velocities are added together does it mean that as the rotation of the frame has a gradient of the perpendicular ...
user avatar
6 votes
2 answers
374 views

We know there is no aether, so what is being dragged in frame dragging?

I have read this question: In stellar frame dragging what is the 'frame'? There are several questions on this site about frame dragging, all of them take the frame that is being dragged as an ...
user avatar
0 votes
1 answer
62 views

In stellar frame dragging what is the 'frame'?

If a star rotation causes a frame rotation then there is an interaction between the two. Is it possible for the star to briefly expel this same frame away from its center when the star becomes a ...
user avatar
  • 455
1 vote
1 answer
78 views

What is the effect of rotational frame dragging on an object constrained in equatorial non-free falling trajectory?

The wikipedia article about frame dragging mentions the following fact about rotational frame dragging: Another interesting consequence is that, for an object constrained in an equatorial orbit, ...
user avatar
  • 93
0 votes
1 answer
57 views

Do frame dragging carry energy away like gravitational wave?

Imagine 2 blackholes inspiral closer as they emits tremendous amount of energy as gravitational wave, now I tried to intuitively imagine a spaceship doing a flyby(gravity assist) near a spinning ...
user avatar
  • 11.4k
2 votes
1 answer
96 views

Solar frame dragging

Does solar frame dragging induce a higher centrifugal force to Mercury so its orbit is precessing as well as being more outwards than it should be if there wasn't solar frame dragging?
user avatar
  • 455
2 votes
1 answer
105 views

Does Birkhoff's theorem still apply to an ultra-dense spherical shell of matter falling into a black hole?

In previous posts I discovered that the effects on space-time geometry of an ultra-dense stationary spherical shell yielded pretty simple equations but I imagine some sort of secondary non-linear ...
user avatar
1 vote
1 answer
94 views

Frame drag of event horizons

I was having a discussion with a friend and he brought up that you could float into an event horizon and not know that you had gone in. I believed this only works with a Schwarzschild black hole. He ...
user avatar
1 vote
0 answers
78 views

Does frame-dragging affect planets?

The question has come up many times as to why the planets in our solar system lie in essentially the same plane. The most common answer is that they started out that way due to the accretion disk ...
user avatar