All Questions
Tagged with binary-stars event-horizon
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If two black holes orbit around each other should their tidal forces cause a shrinking of the closer parts of their event horizons?
I recently asked a question about the influence of external gravitational fields on the stability of the geometry of a part or all the event horizon of a black hole. I understood the answer in a ...
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Should a black holes binary system in fase of imminent merge shrink the parts of the event horizons of both black holes where they face each other?
Should a black holes binary system in fase of imminent merge shrink the inner parts of the event horizons of both black holes where they directly face each other? So the 'singularities' have the inner ...
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Can two relativistic black holes' event horizons overlap and separate again?
I have read this question:
What I have not seen is a purely classical argument for the non-separation of a black hole merger. One can obviously take the time reversed spacetime manifold of a merger ...
- 29k
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Black holes: Is merger inevitable when horizons touch?
I watched a simulation of the binary black hole merger of 2019 April 12
https://www.ligo.caltech.edu/video/ligo20200420v1
When the "apparent horizons" (their terminology; are those ...
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An apparent paradox in General relativity using a binary black hole
Note: Quantum gravity effects are ignored in this question.
Imagine 2 black holes each with mass $m$ approaching each other and after some time the Event Horizons (EHs) of both black holes touch each ...
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Event-Horizon Shape in a Binary System
I understand that a solitary black hole has a spherical event horizon.
I was wondering whether this still stands in a binary system of two (let's say equal mass) black holes? Could the proximity of ...
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Magnetar's magnetic field near a black hole (novice question)
Even light cannot escape the event horizon of a black hole. Now, imagine a magnetar orbits a black hole. The magnetar orbits too far to be ripped and consumed by the black-hole. However, its magnetic ...
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Penrose diagram for two black holes?
Is there a Penrose diagram for two black holes near each other. Perhaps they are colliding or circling each other? Or can this method only describe a single black hole.
user84158
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What happens to the singularities of two black holes in the moment they merger?
Let's assume the merger of a binary black hole and consider especially the moment of the transition from the last stable orbit to the merger, i.e. the transition where two black holes form one black ...
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