What sustains a black hole?
To make a black hole, one must concentrate mass or energy sufficiently that the escape velocity from the region in which it is concentrated exceeds the speed of light. Some extensions of present physics posit the existence of extra dimensions of space.
Can a black hole sustain life?
In order to receive strong enough CMB light, a planet would need to orbit very close to the black hole’s event horizon. That’s because any other stray matter being sucked into the black hole would emit a blast of radiation during its death spiral powerful enough to kill any life on a nearby planet.
How big does a black hole have to be to sustain itself?
No one really knows. The smallest possible Stellar black hole is set by the Tolman–Oppenheimer–Volkoff limit which is estimated at 2.17 solar masses… But actually it is less than that because the Neutron star will give off some mass as it collapses.
What keeps a black hole from collapsing?
Left alone, black holes lose mass due to ‘Hawking radiation’, so that their event horizons are slowly shrinking. But, the interior of the black hole, or its ‘singularity’ (the point at which all the black hole’s matter is concentrated) has already reached the limit of its density and cannot ‘collapse’ any further.
Is space infinite in a black hole?
No. At the core of a black hole, gravity is vastly strong, but not infinite, because there is no singularity there.
What are the theories of black holes?
Theories About Black Holes One of the most recent theories is that a black hole is a “deformation of spacetime” caused by a gravitational force in a region of space generated by a compact mass. Theoretically, a mass is so dense that it creates a gravitational trap that nothing can escape from.
What do black holes look like?
What does a black hole look like, really? Many of us have seen the standard artist’s representation of a black hole: a giant floating disk with roiling, glowing outer rings and an abruptly dark center from which we’re assured nothing, not even light, can escape.
What is the anatomy of a black hole?
The black hole anatomy basically consists of two main components: a singularity, and its Schwarzschild radius, which is the region beyond which not even light can return, which corresponds to the mass of the black hole.
What is black hole in physics?
2) In physics and astronomy, a black hole is a region in time and space within which gravity is so strong that nothing can escape, not even electromagnetic radiation such as visible light. Black holes are thought to surround certain celestial objects. The idea of a black hole (if not the term itself) is not new.