Question

GOOD MORNING guys-:
Here is your question---->. What are HYPER NOVA? and what they form and what they produce when their life ends??explain all the points.

Answer 1

A hypernova (alternatively called a collapsar) is a very energetic supernova thought to result from an extreme core-collapse scenario.

In this case a massive star (>30 solar masses) collapses to form a rotating black hole emitting twin energetic jets and surrounded by an accretion disk. This collapse happens so quickly that the outer parts of the star are unaware of what has taken place, and the star is subsequently exploded by vigourous winds of newly-formed 56Ni blowing off the accretion disk, and shock waves produced as the jets plough through the stellar material. The hypernova, whose luminosity is powered by the radioactive decay of 56Ni, is the result of the explosion of the star.

This model for the formation of a hypernova also predicts that these objects should be accompanied by a gamma ray burst (GRB). Although the mechanism to form the gamma rays is still a matter of debate, it is thought that they are produced through internal collisions within the jet itself. Whatever the actual mechanism, the gamma rays are beamed into a narrow cone along the direction of motion of the jet, and are visible to us only if the jet is pointed in our direction. Astronomers estimate that for every GRB we observe, there are several hundreds more we don’t see, those which are oriented in directions away from us.

Conclusive evidence for this hypernova-GRB connection was obtained only recently. Although there were many cases where the light curve of the prototype hypernova, SN1998bw, could be fitted to the light curve decay of gamma ray burst optical transients associated with GRBs, it was not until astronomers clearly observed the spectrum of a hypernova within the spectrum of an optical transient that the connection was firmly established.

Answer 2

Heya mate!!!

Here is ur answer.....

A blindingly bright star bursts into view in a corner of the night sky — it wasn't there just a few hours ago, but now it burns like a beacon.

That bright star isn't actually a star, at least not anymore. The brilliant point of light is the explosion of a star that has reached the end of its life, otherwise known as a supernova.

Supernovae can briefly outshine entire galaxies and radiate more energy than our sun will in its entire lifetime. They're also the primary source of heavy elements in the universe. According to NASA, supernovae are "the largest explosion that takes place in space.

History of supernova observations

Various civilizations recorded supernovae long before the telescope was invented. The oldest recorded supernova is RCW 86, which Chinese astronomers saw in A.D. 185. Their records show that this "guest star" stayed in the sky for eight months, according to NASA. 

Before the early 17th century (when telescopes became available), there are only seven recorded supernovae, according to Encyclopedia Britannica. 

What we know today as the Crab Nebula is the most famous of these supernovae. Chinese and Korean astronomers recorded this star explosion in their records in 1054, and southwestern Native Americans may have seen it as well (according to rock paintings seen in Arizona and New Mexico). The supernova that formed the Crab Nebula was so bright that astronomers could see it during the day.

Other supernovae that were observed before the telescope was invented occurred in 393, 1006, 1181, 1572 (studied by famed astronomer Tycho Brahe) and 1604. Brahe wrote about his observations of the "new star" in his book, "De nova stella," which gave rise to the name "nova." A nova differs from a supernova, however. Both are sudden outbursts of brightness as hot gases are blown outward, but for a supernova, the explosion is cataclysmic and signifies the end of the star's life, according to Encyclopedia Britannica.

The term "supernova" was not used until the 1930s. Its first use was by Walter Baade and Fritz Zwicky at Mount Wilson Observatory, who used it in relation to an explosive event they observed, called S Andromedae (also known as SN 1885A). It was located in the Andromeda Galaxy. They also suggested that supernovas happen when ordinary stars collapse into neutron stars.

In the modern era, one of the more famous supernovas was SN 1987A from 1987, which is still being studied by astronomers because they can see how a supernova evolves in the first few decades after the explosion.

Hope it helps uh!!!

Mark as brainliest......

#MR❤