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Stellar Evolution

Parent Category: Stars
Stellar evolution is the life cycle of a star. Stars start out as clouds of gas and dust. The composition of the gas and dust will determine the stages that the star may go through.
Quasars are some of the most distant and luminous bodies we canobserve. Since we measure them to be incredibly far from our owngalaxy, in the order of billions of light-years, astronomersbelieve that they are several billions of years old as their lightwould have taken that long to travel to us....
Quasars are galaxies which are much brighter than ordinary ones. they are as bright as 100 galaxies put together. they are also as powerful as several blackholes put together. quasars are seen as faint light from the earth this shows how powerful they are to be seen from the extreme end of the...
The black hole represents a crust in the space which swallows anything that passes through it. Even light cannot escape from a black hole! There is a particular radius for a mass to become a black hole when it is squashed. This is known as the Schwarzschild radius and for the body to become a...
Neutron stars. Pulsars. And occasionally black holes.
First of all, there's two theories of relativity. The one on normalrelativity which indicates that an object that is moving very fastwill experience less time than one that is stable. The one onspecial relativity indicates that the more gravity an object isputted into, the less time it will suffer...
It is a G-type giant star.
Supergiant stars are dying stars that still undergo nuclear fusion,they are made up of hydrogen and some other elements such as oxygenand magnesium. Neutron stars are exposed cores of supergiant stars,they are made up of neutrons, and they cannot undergo nuclearfusion.Supergiant stars are aging...
Gravitationally confined thermonuclear fusion of hydrogen into helium inside a small volume at the core of the sun, where temperature is so high that the electrons and protons of the hydrogen atoms are completely separate gasses (plasma) and pressure is so high that the density of these gasses is...
The only way we'll ever know if Betelgeuse has "gone supernova" iswhen we see it. Of course, by the time we see it, the event willactually have happened some 640 years earlier, because that's howlong its light takes to reach our eyes. Despite being only about 10million years old (young, by stellar...
Because it does not have enough mass to crush itself with it's gravity.
Neither, dark matter is an undetectable yet massive existence within our universe. It is spread out relatively smoothly, not bunching up in particular locations. For more information, search dark matter images (computer simulated), they help the visualization of it.
i do know that its a diffuse mass of interstellar dust or gas or both, visible as luminous patches or areas of darkness depending on the way the mass absorbs or reflects incident radiation. Hope that helps. :)
Black holes havent quite been explained yet. Some scientists still havent found out why black holes are created, and what creates them. But people have suggested that black holes are usually made o rubbish. (Im talking about junk that is left in space such as crashed space ships, or either broken...
The mass of the progenitor star has to be massive to form a black hole and thus it will have a shorter time on the main sequence compared to a medium sized star.
There really is no answer. A black dwarf is simply a white dwarf that has gone out, after it has radiated all its heat. This process, however, takes an enormous amount of time and our universe is not old enough to acommodate it. Consequently, there is no such thing as a black dwarf anywhere in the...
Nothing. The distortion of space and time within a black hole'sevent horizon is so extreme that the only possible direction ofmovement is further inward.
it is the last class
The radius will not change because a white dwarf is made ofelectron degenerate matter, so temperature does not affect pressureor volume.
The ancient Greeks and Celts had mermaid myths.
yes, it is the stage where a star dies and turns into a blackhole
What you are seeing is an absence of light. You distinguish a black objects presence by its lack relative to other things.
Probably not. Dark matter is not believed to concentrate well in or around masses the size of stars. But it does concentrate well around galaxies and clusters of galaxies. Most of the mass of a galaxy like ours is believed to be in a sphere of dark matter in the galaxy's spherical halo.
A neutron star is a stellar remnant
A black table is black because all of the colours are absorbed , and none are reflected. It is the same for any other black item too, for example: A chair. Now, if a chair is red, that is because blue and green (the 2 other primary colours in light) are absorbed and red is reflected. It is the same...
not every star can turn into a black hole, because it has to meet a certain size to do so. our sun will not turn into a black hole, how ever, it will destroy our planets. many stars can turn into black holes, but only when it meets the end of its life which is when it stops burning gas. stars have...
A black hole traps light. It's gravity is so great thatlight cannot escape the gravity well.
No. The nearest black hole is about 1,600 light years away.
Yes, probably many of them. We believe that there is a supermassive black hole at the center of the Milky Way galaxy; that there are probably similar suoermassive black holes at the centers of many large galaxies.
It a Standart for holes Ex. DS 807 (Dansk Standart) v.3 Sep. 1992 Hole in mm and tolranc in µm ( mikrometer) 0-3 mm = +10 to 0 µm = 3,000 to 3,010 = 3 H7 3-6 mm = +12 to 0 µm = 6,000 to 6,012 = 6 H7 6-10 mm = +15 to 0 µm = 10,000 to 10,015 10-18 mm = +18 to 0 µm = 18,000 to 18...
No. White dwarfs, neutron stars, and black holes are threedifferent things. With the exception of some black holes, all areremnants of the cores of dead stars at various degrees of collapse. A white dwarf is the remains of a low to medium mass starconsisting of atomic nuclei surrounded by electrons...
A black hole is a region of space from which nothing, including light, can escape. It is the result of the deformation of spacetime caused by a very compact mass, thus the 'end' of a black hole is the very massive object.
Any mass will warp space and time, according to the General Theory of Relativity. In a black hole the mass is simply more concentrated. Any mass will warp space and time, according to the General Theory of Relativity. In a black hole the mass is simply more concentrated. Any mass will warp space...
The sun measures about 32 arc minutes as seen from earth. It is a big ball with a diameter of some 1.392 x 10 9 meters. Taking the sun away and sticking in a typical neutron star would mean substituting that big ball with something only some 20 to 40 kilometers in diameter. The neutron star is...
This Kepler's Third Law problem can be solved with the following formula:. P 2 = a 3 / (M 1 + M 2 ). P = period of rotation in years. a = distance between the objects in AUs. M 1 and M 2 = mass of the first and second objects (respectively) in solar masses. Average neutron star mass = 1.75...
\nFor a thermal radiation source, the peak of the blackbody radiation curve is at a photon energy 2.8 times the temperature in electron-volts. \n. \nThe temperature in electron-volts is 1/11,600 times the temperature in Kelvin.\n. \nUse E = hv to convert from the photon energy (E) to photon...
A supernova is where a massive star explodes, a neutron star is the remnant of a supernova explosion - a black hole is the other possibility. See related questions.
Here are only some of the factors: distance from their sun, axis,and whether or not they have a moon, if so, the moons size.
black holes swallow all energy and matter around them, includingelectricity
The stars with an A-type spectrum are the hottest common stars, butearly-stage stars with a B-type spectrum are even hotter. The order of temperature is B-A-F-G-K-M for common stars. TheM-type stars are the coolest common stars and they definitely lookred, e.g. Antares, Betelgeuse. Remember the...
There is an upper limit to the mass of neutron stars because if theneutron star is too massive, neutrons would be crushed by thegravity of the neutron star, and the neutron star would collapseinto a black hole.
An x-ray telescope. They are far too small to be seen optically.
Red dwarf stars have such long lifetimes that none of them ever have yet. Presumably, they will eventually go through the white dwarf phase before cooling entirely and becoming "black dwarfs".
Pulsars have extremely short periods; in some cases seconds, insome cases just a few milliseconds. There is no way a typical star,with its great size (for example, a diameter of 1.4 millionkilometers in the case of our Sun) can pulsate that quickly.
No they do not. All matter in a black hole is crushed into a single point called a singularity. A point does not have any dimensions so there is no bottom. Or even a top for that matter.
They've observed the black cloud around which no light escapes that surrounds a black hole. They've observed the bending of light around the black hole, which caused two identical looking universes side by side. They've observed the galaxies rotating around them.
The nearest known black hole is at a distance of several thousand light-years. Since Saturn is very near to us by comparison, it doesn't make any difference if you ask about the distance from the Solar System, from the Sun, from Earth, or from Saturn.\n The nearest known black hole is at a...
No. Only massive, short lived stars can supernova and only under certain conditions. The large majority or suns, including our own (yellow dwarf) will eventually burn out and become black dwarfs. However, this process takes so long the Universe is not yet old enough for us to witness the event. Nope...
No. You will not be swallowed by the black hole but you still wouldnot survive for very long. If the sun become a black hole it wouldretain the same mass, so the orbits of the planets would remain thesame. It is only within the former radius of the sun that gravitywould be unusually strong. The...
There is no formula. Light year is the distance as in how many years it takes a star's light to reach its message toward Earth.
The "boundary" you're probably thinking of is called the eventhorizon. Past this point, the escape velocity of the black holeexceeds the speed of light, meaning nothing, including light, canescape it.
The star that created the Crab nebula exploded in the year 1054
A black hole consists of three main parts : The Accretion disk , (outer edge made up of hot gasses/rock etc). The event horizon (the part that looks as though it it a huge black hole, this is because the parts moving into it are moving faster than the speed of light so you cannot see the past...
The Earth is currently headed away from the nearest dwarf star and won't start heading back towards it until about the beginning of July. However, there's no danger of a collision any time soon; we've been orbiting it like this for about five billion years. (The nearest dwarf star is, of course, the...
after a neutron star collapses on itself
In the center of every galaxy there is a giant black hole.
There is no way to escape from a black hole because it's gravity is infinite.
Quasars are produced by the friction in the accretion disksurrounding a black hole and we believe that there are supermassiveblack holes at the center of not just our own galaxy but the centerof all galaxies.
A neutron star is formed when a large star collapses from gravity, but, the star is able to cling on to life because as it collapses, the neutrons in the atoms that make up the star repel each other, pushing outwards against the gravitational force, keeping the star alive, but incredibly dense.
The radiation emitted from a black hole is known as hawking radiation after it's discoverer Stephen Hawking.
Mainly neutrons. Mainly neutrons. Mainly neutrons. Mainly neutrons.
Stars are balls of gas that undergo nuclear fusion and have a core,their light come from the energy released during nuclear fusion.Planetary nebulae are the blown-off shells of dying red giantstars, the light of a planetary nebula come from ionized gas andlight of other stars.
A black hole can have an electric charge if it swallows electrically charged objects, but no objects that we know of have magnetic charge. Magnets always have both a north pole and a south pole; there is no evidence that one can exist alone. A lone north or south pole would be called a magnetic...
no because it would destroy the space if it went in to a black hole
Gravitational instability of molecular nebulae causes formation of protostar, which evaluates to the star.
Albert Einstein predicted their existence using some prettycomplicated math. It was not until some years after his death thatwe actually detected one (Cygnus X-1).
First of all, there cannot be a black hole on the sun because it'sto small, but technically speaking a star which is massive enoughfor it's core to collapse and form a black hole will be a star thatis not alive any more but will still seem like a normal star foraround three hours, and the only way...
Answer . Could very well be the spark plugs or possibly fuel injectors. I had the same problem and it was the spark plugs.. check for dead spots in your tps. also check that the resistance in your airflow meter is consistant.
A nebula where planets are created along with stars.
Entropy is the universe's desire to return to disorder, and is an illusion caused by our perception of time. To picture what's going on in entropy, let's imagine a bunch of gas molecules in a jar. To make things easy, let's picture them as billiard balls. The billiard balls will have a bit of energy...
Depends how close the neutrino is to the black hole.
The largest white dwarf we know of is in the planetary nebula NGC6853, and it's the central star. Nestled in the constellationVulpecula, it is some 1,300 to 1,400 light years from our localstar.
Just an another random volunteer I guess.
The mass of a black hole is contained in a singularity, which is asingle infinitely dense point.
One, the gas (hydrogen) get pulled together by gravity, gettingdenser, and finally, a star is made.
A star forms a nebula when it runs out of fuel. The star eitherbecomes a red giant or a supergiant, then the star would be blownoff into space either by expansion or explosion. The outer layers,which was released into space, would become a nebula, or sometimesa part of a larger nebula.
The brightness of a star depends (a) on its temperature, which affects the amount of radiation emitted per square meter, and (b) the total surface area. A white dwarf has a very small surface area - around 1 / 10,000 the area of our Sun.\n White dwarf stars are the compressed cores of a dead star,...
Firstly you get streched then you rip into two then 4 then 10 and you keep doing that until you are a stream of atoms then you get squished and then get burnt up. CAUSE OF THE FREAKIN FCC! Oh yeah that will feel good if you get sucked into a blackhole.
Gravity. When a star of 3+ solar masses collapses in on itself, gravity continues to make its matter denser and denser.
Answer #2: It is not completely known how supermassive black holes form but it is thought that they may have formed from originally stellar-mass black holes from massive stars and/or collapsed gas clouds that were able to accrete enough matter and merge with other singularities to form a massive...
No. Neptune is a planet, so if it had a black hole on or around it, it would be pulled in.
No. In about 7.5 billion years the Sun will become a white dwarf.
It could be noted that the tidal force near most black holes wouldstretch you to death ("spaghettify") ... but that the larger andmore massive the black hole, the less you'd feel this tidal force.In the unlikely event you could get to a large enough black hole,could survive the intense radiation...
Aside from space, the structure surounding a black hole is anevent horizon (Or apparent horizon depending on if you go byHawking's new theories or not). The "black hole" is actually theevent horizon while the object of the hole itself is thegravitational singularity at the center. . The event...
To be quite plain, no mater cannot escape a black hole. Not even light its self can escape the gravitational pull of a black hole. *more info* Black holes are created when a massive star (about 3-4 times the size of our sun) explode and create a supernovae. The stare will then implode on its self...
Scientists "see" things through specialized equipment that identify waves that are invisible to a human eye i.e. microwaves, gamma waves, etc. Also because we are in the Milky Way, right? SO There are many stars in our galaxy. So, they can see it because it was a big black gap right in our...
no the galaxy is way to big for a black hole to do much in fact wenow know that there is a supermassive black hole in the center ofour galaxy right now.
It is generally accepted that the nebula that formed the solar system was "prompted" by a nearby supernova.
It sucks it in and packs it into a great big ball of extremely dense matter which is why everything is pulled into it in the first place.
"explode as supernovae". These are called Type II supernovae and sometimes a neutron star is formed, not a black hole.