What are the requirements for supernova?
For a star to explode as a Type II supernova, it must be several times more massive than the sun (estimates run from eight to 15 solar masses). Like the sun, it will eventually run out of hydrogen and then helium fuel at its core. However, it will have enough mass and pressure to fuse carbon.
What event triggers a Type II supernova?
Type II Supernovae result from the collapse of massive stars, resulting from the collapse of the star’s iron core. This usually occurs once the star starts fusing silicon- the end product is iron, which burns through fission rather than fusion. This results in the formation of a series of layers within the star.
Why are Type II supernovae only seen in areas with active star formation?
Like Type Ib and Type Ic supernovae, SNII are only found in regions of star formation, indicating that they result from the core-collapse of massive stars.
What type of stars make Type II supernovae quizlet?
A Type II supernova occurs when a high-mass star’s core becomes dominated by iron, halting the nuclear fusion process. The star’s core can no longer maintain equilibrium, and the core begins to contract.
What is more powerful than a Hypernova?
NASA astronomers have found an intense cosmic event called a “kilonova.” A kilonova is an explosion so powerful that it’s 1000 times stronger than a normal supernova.
What is the difference between type I and Type II supernova?
Supernovae are classified as Type I if their light curves exhibit sharp maxima and then die away gradually. The maxima may be about 10 billion solar luminosities. Type II supernovae have less sharp peaks at maxima and peak at about 1 billion solar luminosities. They die away more sharply than the Type I.
What causes a Type I supernova to detonate?
What causes a Type I supernova to detonate? Enough material is drawn onto a white dwarf to increase its mass to the point of collapse, and all of its material fuses at once.
Where in the galaxy would you expect to find Type II supernovae which are the explosions of massive stars that go through their lives very quickly?
Since massive stars are involved, Type II supernovas are found in the spiral arms and other star-forming regions of spiral and disk galaxies, which have lots of gas and dust for the formation of new stars.