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Can anyone tell me that how many dimensions are there in a black hole and which are the dimension
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The thing is this that there is massive distance between event horizon and hypothesized singularity of a massive black hole but when a black hole is not that big then these forces act very soon..........There's a massive distance between the event horizon (which is nothing more than an optical barrier) and the hypothesized singularity.
There are theories about how black holes both accrete and shed mass. But that is not necessarily related to the formation of quasars.
Quasars are formed from the accretion disk surrounding black holes. They are considered to be early objects within the time span of universal expansion.
Sure. How do you think quasars initially formed? The only problem in todays time is that one of the only places there is a high enough concentration of mass to form a quasar is in the center of a galaxy. Which usually happens to already have a supermassive black hole that has already absorbed most of that mass. So we don't really have the conditions to form many quasars at this point in time.and related to formation of quasar that is what i am asking if a small black hole suck lots of things its mass could increase and thus there is a formation of accretion disk and thus quasar is that is the process?
As the mass of a black hole increases, the radius of the event horizon from the center also increases. It is currently unknown about the ultimate fate of matter and energy that falls into a black hole and passes the event horizon, so no one can really say much about the singularity.can anyone please clarify my doubt related to black hole i.e. when black suck objects inside event horizon it hits singularity but it obtain some space in black hole then it must lead to a conclusion that the size of black need to be increased as time pass (when black hole is in active mode) so this means that supermassive black hole has gone through this process and hence quasar is formed. please clarify
Probably the thing is when a black hole pulls enough things inside that can increase its radius to an extent where the end side escape velocity is less than velocity of light we see that there is an object emmitting light but actually it is the black hole which has increased its size to that extent (and it may true that's how a quasar is generated)As the mass of a black hole increases, the radius of the event horizon from the center also increases. It is currently unknown about the ultimate fate of matter and energy that falls into a black hole and passes the event horizon, so no one can really say much about the singularity.
I don't think any of that is correct. To my knowledge once inside the event horizon (which is what is expanding when the black hole increases in mass) it is not possible for anything to get back out.Probably the thing is when a black hole pulls enough things inside that can increase its radius to an extent where the end side escape velocity is less than velocity of light we see that there is an object emmitting light but actually it is the black hole which has increased its size to that extent (and it may true that's how a quasar is generated)
Perhaps the in-falling mass adds to the mass of the black hole (or rather the strength of the gravitational pull in the area around it) making the event horizon expand? Not sure.If it takes an infinite time for an object to cross into a BH, viewed from a outside, then in what sense would a BH increase it's mass over time?
the statement which i made might be incorrect on which u quoted sir but the thing is if anything cannot come out after crossing the event horizon then how could the gases at accretion disk gets heated up in quasar which have a supermassive black hole at centre............I don't think any of that is correct. To my knowledge once inside the event horizon (which is what is expanding when the black hole increases in mass) it is not possible for anything to get back out.
The accretion disk is outside of the event horizon.the statement which i made might be incorrect on which u quoted sir but the thing is if anything cannot come out after crossing the event horizon then how could the gases at accretion disk gets heated up in quasar which have a supermassive black hole at centre............
Indeed, the event horizon begins to expand BEFORE the mass crosses the horizon from an outside observer's perspective (as noted, it will never do so). The event horizon's size increases asymptotically to the value it would have if we just assumed the the object fell in immediately.Perhaps the in-falling mass adds to the mass of the black hole (or rather the strength of the gravitational pull in the area around it) making the event horizon expand? Not sure.