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What avoids radiation from supernovas and the effects of black holes?
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Light produced when a black hole decays is called?
A type of weak radiation thought to be present due to quantum effects near a black hole's event horizon is often called Hawking radiation, after the scientist who proposed it, Professor Stephen Hawking.
Can black holes emit radiation?
Yes it is theorized that black holes constantly emit radiation in the form of thermal energy (Heat) also called Hawking radiation and black-body radiation.
Do Gamma ray burst form a black hole?
In an indirect way, yes. Gama rays are the highest-intensity form of electromagnetic energy. They usually indicate a very power energy source. Most black holes are formed by exploding stars called supernovas. These events can be detected as gamma ray bursts.
Do Giant Supernovas create super massive black holes?
No, only small ones, the supermassive ones are at the centre of galaxies.
What kind of radiation does a black hole emit?
Black holes are believed to emit something called Hawking radiation.
Can black holes appear out of no where?
no because black holes can only form through supernovas.
How do you know about the Hawking radiation?
Hawking radiation describes how radiation is emitted from a black hole due to quantum effects. According to Hawking matter and ant-matter is formed simultaneously near a black hole an are destroyed as soon as they are formed. But sometimes one of these duo are pulled away by the black hole's gravitational effects and leaving a room for the other to escape. So according to this a black hole should be shinning instead of being black.
When the largest stars die they first become supernovas and then they become?
Black holes
How can you tell if there is a black hole?
Astronomers look for black holes by searching for their effects (the hole itself by definition can't be seen). Some of the possible effects are gravitational lensing and electromagnetic radiation from the hole's accretion disk.
What is hawking radiation?
Hawking radiation is black body radiation that is predicted to be released by black holes.It is due to quantum effects near the event horizon.According to the quantum mechanical uncertainty principle, rotating black holes should create and emit particles. Black holes that lose more mass than they gain through other means are expected to shrink and ultimately vanish. Hawking radiation reduces the mass and the energy of the black hole and is therefore also known as black hole evaporation Micro black holes (MBHs) are predicted to be larger net emitters of radiation than larger black holes and should shrink and dissipate faster. Black holes are sites of immense gravitational attraction. Classically, the gravitation is so powerful that nothing, not even electromagnetic radiation(including light), can escape from the black hole. It is yet unknown how gravity can be incorporated into quantum mechanics, nevertheless, far from the black hole the gravitational effects can be weak enough for calculations to be reliably performed in the framework of quantum field theory in curved spacetime. Hawking showed that quantum effects allow black holes to emit exact black body radiation, which is the average thermal radiation emitted by an idealized thermal source known as a black body. The electromagnetic radiation is as if it were emitted by a black body with a temperature that is inversely proportional to the black hole's mass.
Light produced when a black hole decays is called?
A type of weak radiation thought to be present due to quantum effects near a black hole's event horizon is often called Hawking radiation, after the scientist who proposed it, Professor Stephen Hawking.
Can black holes emit radiation?
Yes it is theorized that black holes constantly emit radiation in the form of thermal energy (Heat) also called Hawking radiation and black-body radiation.
Do Gamma ray burst form a black hole?
In an indirect way, yes. Gama rays are the highest-intensity form of electromagnetic energy. They usually indicate a very power energy source. Most black holes are formed by exploding stars called supernovas. These events can be detected as gamma ray bursts.
Do Giant Supernovas create super massive black holes?
No, only small ones, the supermassive ones are at the centre of galaxies.
Does black absorb or reflect?
Black absorbs radiation. A perfectly black body would absorb all the radiation that is incident upon it.
Can we see a black hole with our naked eyes?
Probably, if it's close enough - but the nearest known black hole is at a distance of about 3000 light-years.A black hole is supposed to be "black" - not to emit any radiation. There is some Hawking radiation, but that's way too weak to detect, even with our best current instruments. However, any matter falling into the black hole will emit A LOT of radiation, before it crosses the event horizon.
Why is radiation of heat larger in a black surface than a white surface?
A black surface absorbs the heat radiation and a white surface reflects the heat radiation
