When a high-mass star exhausts its nuclear fuel, it undergoes a series of fusion processes, leading to the formation of heavier elements in its core. Eventually, the core becomes unstable and collapses under gravity, triggering a supernova explosion. This explosion briefly outshines entire galaxies and disperses the star's outer layers, enriching the surrounding interstellar medium with heavy elements. The remnant core can become a neutron star or black hole, depending on its mass.
Because all the material that could rekindle it has run out - there is none left.
A high mass protostar will eventually evolve into a massive star like a red supergiant, followed by a supernova explosion. After the supernova event, the remnants may form a neutron star or a black hole.
A burnt-out collapsing star can rekindle itself if it has sufficient mass and conditions are right for nuclear fusion to resume. In the case of a massive star that has shed its outer layers, it might undergo a process called a supernova, which can trigger fusion in the core if the conditions allow. Additionally, in binary systems, a white dwarf can gain enough material from a companion star to reignite fusion. However, for most stars that exhaust their nuclear fuel, rekindling is not feasible.
The Sun is a medium mass star in main sequence.
High, typically 10 to 70 times (or more) the mass of our own sun.
Because all the material that could rekindle it has run out - there is none left.
High mass.
Stars don't "burn" chemically like a fire. The energy they release is obtained by fusing light elements into heavier elements. In doing that they convert mass into energy as Einstein described with the equation E=mc2. A high mass star explodes as a supernova, leaving behind a neutron star or a black hole. Neither of those is capable of nuclear fusion.
A high mass star will leave behind either a neutron star of a black hole.
High mass.
no the sun is a medium mass star.
It can't. A blue star is a high-mass star. A yellow star has a medium mass.
no the sun is a medium mass star.
A low mass star will become a white dwarf star, eventually this will cool to become a black dwarf. A high mass star (at least 8 times the mass of our Sun) will form a neutron star or a black hole, after a supernova event.
white dwarf
A high mass protostar will eventually evolve into a massive star like a red supergiant, followed by a supernova explosion. After the supernova event, the remnants may form a neutron star or a black hole.
A burnt-out collapsing star can rekindle itself if it has sufficient mass and conditions are right for nuclear fusion to resume. In the case of a massive star that has shed its outer layers, it might undergo a process called a supernova, which can trigger fusion in the core if the conditions allow. Additionally, in binary systems, a white dwarf can gain enough material from a companion star to reignite fusion. However, for most stars that exhaust their nuclear fuel, rekindling is not feasible.