2006-09-18 02:05:22 · 5 answers · asked by sandeep 1 in Science & Mathematics ➔ Astronomy & Space
Supernova turns into a neutron star then possibly a black hole.
Hypernova turns directly into a black hole. (theoretical)
2006-09-18 02:14:12 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A supernova (pl. supernovae) is a stellar explosion which produces an extremely bright object made of plasma that declines to invisibility over weeks or months. A supernova releases more than about 1017 times the Sun's energy output, briefly outshining its entire host galaxy
One hypernovates is a theoretical type of superNova that takes place when extraordinarily great stars are colapsan at the end of their lives. In one it hypernovates, the nucleus of the star colapsa directly in a black hole, emitting two extremely power plasma spurts from his poles at a speed near the one of the light. These spurts emit powerful gamma rays and would be a possible explanation of eruptions gamma the ray.
2006-09-18 02:16:15 · answer #2 · answered by mr. M 2 · 0⤊ 0⤋
It is not clear if a hypernova is really a distinct event from a supernova. Some competing hypotheses to explain the gamma ray bursts that are attributed to hypernovas involve an ordinary supernova with a relativistic bipolar outflow event with the axis oriented along the line of sight (ie we are looking down the barrel of a relativistic jet.) Whether a hypernova is a completely different class of object/event from a regular Type II supernova is still a contentious topic.
2006-09-18 14:49:00 · answer #3 · answered by Mr. Quark 5 · 0⤊ 0⤋
Hypernova (pl. hypernovae) refers to an exceptionally large star that collapses at the end of its lifespan —for example, a collapsar, or a large supernova. Up until the nineties, it had a more specific meaning to refer to an explosion with released energy of over 100 supernovae (1046 joules). Such explosions were proposed to explain the exceptional brightnesses of gamma ray bursts.
A supernova (pl. supernovae) is a stellar explosion which produces an extremely bright object made of plasma that declines to invisibility over weeks or months. A supernova releases more than about 1017 times the Sun's energy output, briefly outshining its entire host galaxy.[1]
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 under the force of its own gravity to form a neutron star or black hole. Alternatively, 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 second type of supernova should not be confused with a surface thermonuclear explosion on a white dwarf, which is called a nova. In either type of supernova, the resulting explosion expels much or all of the stellar material with great force.[2]
The explosion drives a blast wave into the surrounding space, forming a supernova remnant. One example of this process is the remnant of SN 1604, shown to the right.
"Nova" 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, the name is inappropriate as it signals the end of a star (or at least its radical transformation into something else).
2006-09-18 02:14:13 · answer #4 · answered by finalmoksha 3 · 1⤊ 0⤋
Size of star.
Supernova needs a star 1000 times size of our dear sun
Hypernova- Millions of times size of sun
nova- a star thrice sized as sun
Nature of balst too varies and a lot more
Elements heavier than iron are formed due to fusion only during supernova.
2006-09-18 02:17:39 · answer #5 · answered by PP 2 · 2⤊ 0⤋