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2006-08-14 16:39:51 · 14 answers · asked by josh 1 in Education & Reference Trivia

14 answers

a supernova hapens when a superstar runs out of fuel and explodes.

2006-08-14 16:51:27 · answer #1 · answered by tj 2 · 0 1

A supernova is a stellar explosion that produces an extremely bright object made of plasma that declines to invisibility over weeks or months. There are several different types of supernovae and two possible routes to their formation. A massive star may cease to generate fusion energy from fusing the nuclei of atoms in its core and collapse inward under the force of its own gravity to form a neutron star or black hole, or a white dwarf star may accumulate material from a companion star until it nears its Chandrasekhar limit and undergoes runaway nuclear fusion in its interior, completely disrupting it (note that this should not be confused with a surface thermonuclear explosion on a white dwarf called a nova). In either case, the resulting supernova explosion expels much or all of the stellar material with great force.

The explosion drives a blast wave into the surrounding space, forming a supernova remnant. One famous example of this process is the remnant of SN 1604, shown to the right.

"Nova" (pl. novae) is Latin for "new", referring to what appears to be a very bright new star shining in the celestial sphere; the prefix "super" distinguishes this from an ordinary nova, which also involves a star increasing in brightness, though to a lesser extent and through a different mechanism. However, it is misleading to consider a supernova as a new star, because it really represents the death of a star (or at least its radical transformation into something else).

2006-08-14 20:06:32 · answer #2 · answered by Gopi 2 · 0 0

#One of the most energetic explosive events known is a supernova.

@These occur at the end of a star's lifetime, when its nuclear fuel is exhausted and it is no longer supported by the release of nuclear energy.

$ If the star is particularly massive, then its core will collapse and in so doing will release a huge amount of energy.

%This will cause a blast wave that ejects the star's envelope into interstellar space.

^^The result of the collapse may be, in some cases, a rapidly rotating neutron star that can be observed many years later as a radio pulsar.

&&While many supernovae have been seen in nearby galaxies, they are relatively rare events in our own galaxy.

**The last to be seen was Kepler's star in 1604. This remnant has been studied by many X-ray astronomy satellites, including ROSAT.

--There are, however, many remnants of Supernovae explosions in our galaxy, that are seen as X-ray shell like structures caused by the shock wave propagating out into the interstellar medium.

==Another famous remnant is the Crab Nebula which exploded in 1054. In this case a pulsar is seen which rotates 30 times a second and emits a rotating beam of X-rays (like a lighthouse).

++Another dramatic supernova remnant is the Cygnus Loop.

* The set of small GIF images used to create the supernova inline animation is available.

* See also the X-ray binary and black hole inline animations.

* Visit the HEASARC Images and Video Archive.

2006-08-14 17:39:56 · answer #3 · answered by Anonymous · 0 0

One of the most energetic explosive events known is a supernova. These occur at the end of a star's lifetime, when its nuclear fuel is exhausted and it is no longer supported by the release of nuclear energy. If the star is particularly massive, then its core will collapse and in so doing will release a huge amount of energy. This will cause a blast wave that ejects the star's envelope into interstellar space. The result of the collapse may be, in some cases, a rapidly rotating neutron star that can be observed many years later as a radio pulsar.

2006-08-14 16:51:31 · answer #4 · answered by Astromajor 1 · 1 0

A supernova is a result of a dying star that is at least 3.2 solar masses larger then the sun, in otherwords the star is BIIIIIG. A supernova can result in a blackhole or a neutron star.

2006-08-14 16:45:29 · answer #5 · answered by suppy_sup 3 · 0 0

Extreme conditions in a star's core in combination with high x-ray pressures exerted to the outer layer of a star driving material far away from its mid-section, which falls back to the core. In simple words pressure pushing outwards while gravity pusses inwards.

Tip: think of it as a balloon that has too much air in it.

2006-08-14 16:52:55 · answer #6 · answered by Anonymous · 0 0

Tommy Lee

2006-08-14 16:42:29 · answer #7 · answered by suequek 5 · 0 0

Chip Foose

2006-08-14 17:29:25 · answer #8 · answered by jtvirden 2 · 0 0

A short block V-8., stroked and bored..Holley carbs., Hirsh linkage., upgraded cam., street slicks ..Candy apple red metal flake, leather interior, mag wheels, 4 on the floor....

a really "super" NOVA

2006-08-14 18:52:00 · answer #9 · answered by Gemelli2 5 · 0 0

a super nova is when a giant star explodes in space the star has used up all of its fuel a super nova get the super part because it is bigger than a nova because a nova is the explosion of a smaller star

2006-08-14 16:59:19 · answer #10 · answered by Zman 2 · 0 0

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