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Supernovae

A supernova is an explosion of a supergiant star. It will put off huge amounts of energy, much more than if all the nuclear warheads on Earth were detonated at once.

313 Questions

What is a gamma pulse?

I presume you mean a "gamma ray burst."

This is a burst of gamma ray energy, lasting from less than a second to a few minutes, that comes from outside our galaxy. Despite being from that far away, they are measurable on our planet, meaning the energy release in one second of a gamma ray burst is greater than the energy that our Sun will release in its entire ten billion year life cycle.

GRB's are now thought to be from the collapse of a massive star, but the question has not been completely settled.

If a gamma ray burst from within our galaxy were to hit our Earth, all life on our planet, even bacteria, would end within a few days.

In which type of galaxy would you be most likely to observe a massive star supernovae in a giant elliptical galaxy or in a large spiral galaxy?

Large Spiral Galaxy. This is because they contain more of the OB stars that are required for a supernova event.

Elliptical galaxies tend to be older and have more low mass stars and are not as common as spiral galaxies.

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What could happen to the dust and gases that are left behind after a supernova of a dying star?

They will be drawn into a larger cloud by gravitational attraction and eventually, this can form a stellar system.

What happens to a star that gets too big?

Nothing but when the star explodes it turns into a blackhole

Why can't a star fuse chemical elements beyond iron?

It sure can - and some stars do, to a minor degree. However, it can no longer gain energy from this fusion - it costs energy to create heavier elements.

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To fuse Iron, you would need a huge amount of heat and pressure, higher than what can be provided by even the massive stars is existence. The upper limit of a stars mass puts this limit on what materials it can fuse. Elements heavier than Iron are created during a supernova explosion, the death of a massive star.

Who discovered the first supernova?

The first recorded supernova was observed by Chinese astronomers in 185 AD, which is known as SN 185. However, the discovery of the first modern supernova, SN 1572, was made by the astronomer Tycho Brahe in 1572.

Why would your Datsun 280zx stall if the rpm goes over 2000?

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.

When was Supernova released?

Supernova was released on 01/14/2000.

What type of stars end their lives in a supernovae?

The most massive ones. The exact amount of mass requires varies, depending on the type of supernova, and on the element mix of the initial star.

What is the range of masses for a supernova?

The range of masses for a supernova typically falls between about 8 to 50 times the mass of the sun. When a star that massive runs out of nuclear fuel, it undergoes a catastrophic collapse resulting in a supernova explosion. Smaller stars may end their lives in a different type of explosion called a nova.

What is the remains of a star called after a supernova?

The remains of a star after a supernova can be classified primarily as either a neutron star or a black hole, depending on the mass of the original star. If the core's mass is below a certain threshold, it may collapse into a neutron star, which is incredibly dense and composed mostly of neutrons. If the core's mass exceeds this limit, it may collapse further into a black hole, where gravity is so strong that not even light can escape. Additionally, the explosion disperses the outer layers of the star into space, creating a supernova remnant.

How do we know that the sun was formed from a supernova?

Scientists believe that the sun was formed from a gas and dust cloud called the solar nebula, which was part of a giant molecular cloud. The supernova theory suggests that shockwaves from a nearby supernova triggered the collapse of the solar nebula, leading to the formation of the sun and the solar system. Isotopic analysis of meteorites and the sun's composition support this theory.

What did people think of the first supernovae?

People in ancient times often associated the appearance of supernovae with various beliefs, omens, or religious significance. Some cultures saw them as signs of impending doom or the death of a king, while others interpreted them as new stars being born. They were sometimes recorded in historical texts and were occasionally perceived as celestial events of great importance.

What was the significance of Kepler supernova to the understanding of the heavens?

The Kepler Supernova, observed in 1604, was significant because it challenged the prevailing Aristotelian view of an immutable celestial sphere, demonstrating that the heavens could undergo change. This event provided crucial evidence for the nascent field of astronomy and the heliocentric model proposed by Copernicus. Johannes Kepler's detailed observations of the supernova contributed to the understanding of stellar evolution and the nature of supernovae, paving the way for future astronomical discoveries. Ultimately, it helped shift the perception of the universe from a static to a dynamic entity.

What produces a type-1 supernova?

A type-1 supernova is produced by the explosion of a white dwarf star in a binary system. This occurs when the white dwarf accretes material from its companion star, triggering a runaway nuclear fusion reaction that results in a sudden and catastrophic explosion.

Are pulsars found in supernova remnants.?

Yes, pulsars are often found in supernova remnants. Pulsars are rapidly rotating neutron stars that emit beams of radiation, and they are formed when a massive star undergoes a supernova explosion. The remnants of the supernova provide the environment from which the pulsar originates.

Where does a supernova fit into a star's lifecycle?

A supernova occurs at the end of a massive star's life cycle.

How many times bigger is a supernova than a nuclear explosion?

The lowest energy release in a supernova is about 1.5E44 Joules, the highest energy release in a nuclear explosion (i.e. the Soviet Tsar Bomba of 1961) was about 2.17E17 joules (although significantly larger yields are possible, nobody has seen any reason to build one).

This is 27 orders of magnitude between the smallest supernova and the largest nuclear explosion that was ever done!!!

How many atomic bombs would equal a super nova?

As both atomic bombs and supernovas vary in yield, this question has no single answer.

Is there a star or supernova by the name of Xibalba?

Xibalba is the name of the Mayan underworld ... essentially the equivalent of the Greek Hades (the place, not the god). Also, the Mayans appear to have regarded a dark rift in the Orion Constellation as being the road to Xibalba. On Ganymede, one of Jupiter's moons, there is a feature (a sulcus, which is basically a kind of ditch) named after it; that's the only modern non-fictional astronomical reference to it that I know of The nebula in the movie, The Fountain, is referred to as Xibalba, which the Mayans believed to be the Orion Nebula. There is no star or nebula technically referred to as Xibalba, but as you can see throughout the movie, it is shown to be within the constellation Orion and specifically the location of the Orion Nebula. According to Wikipedia: "The Maya of Central America had a folk tale which dealt with Orion's part of the sky, known as Xibalba. Their traditional hearths included in their middle a smudge of glowing fire that corresponded with the Orion nebula. This is clear pre-telescope evidence that the Maya detected a diffuse area of the sky contrary to the pin points of stars."