What a medium mass star becomes at the end of its life?

Answer. THE DEATH OF A LOW OR MEDIUM MASS STAR After a low or medium mass or star has become a red giant the outer parts grow bigger and drift into space, forming a cloud of gas called a planetary nebula. The blue-white hot core of the star that is left behind cools and becomes a white dwarf.

What do medium sized stars end their life as?

Medium stars are those that, too big to end as white dwarfs and too small to become black holes, spend their dying years as neutron stars. Scientists have observed this category to have a lower limit of just above 1.4 solar masses and an upper limit in the neighborhood of 3.2 solar masses.

What is a star called at the end of its life?

The core becomes a White Dwarf the star eventually cools and dims. When it stops shining, the now dead star is called a Black Dwarf.

What happens at the end of a stars life?

The events at the end of a star’s life depend on its mass. Really massive stars use up their hydrogen fuel quickly, but are hot enough to fuse heavier elements such as helium and carbon. Once there is no fuel left, the star collapses and the outer layers explode as a ‘supernova’.

What are some medium sized stars?

Mid-sized stars are red giants during two different phases of their post-main-sequence evolution: red-giant-branch stars, with inert cores made of helium and hydrogen-burning shells, and asymptotic-giant-branch stars, with inert cores made of carbon and helium-burning shells inside the hydrogen-burning shells.

What is the general life cycle stages of a small medium sized star?

A smaller star, like the Sun, will gradually cool down and stop glowing. During these changes it will go through the planetary nebula phase, and white dwarf phase. After many thousands of millions of years it will stop glowing and become a black dwarf. A massive star experiences a much more energetic and violent end.

What is the remains of a high mass star?

Neutron stars are the remains of high-mass stars. The most massive stars become black holes when they die.

Which stars become neutron stars?

Any main-sequence star with an initial mass of above 8 times the mass of the sun (8 M _☉) has the potential to produce a neutron star. As the star evolves away from the main sequence, subsequent nuclear burning produces an iron-rich core.

What happens when a neutron star dies?

What happens when a star dies? Astronomers thought they had it all figured out. A dying star either fades into a simmering white dwarf, explodes and then shrinks into a super-dense neutron star or collapses into an all-consuming black hole, depending on its mass.

Is a neutron star a dead star?

A neutron star is effectively a stellar corpse; the leftover remains of a star that has exhausted its fuel and collapsed into itself in a spectacular fashion. It no longer burns hydrogen, helium, or any other element as fuel, and so is for all intents and purposes dead matter.

What is star life cycle?

Stars come in a variety of masses and the mass determines how radiantly the star will shine and how it dies. Massive stars transform into supernovae, neutron stars and black holes while average stars like the sun, end life as a white dwarf surrounded by a disappearing planetary nebula.

How are stars formed step by step?

Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. The process of star formation takes around a million years from the time the initial gas cloud starts to collapse until the star is created and shines like the Sun.

What are the 3 end stages of stars?

Three and stages of stars are white dwarf, neutron star and a black hole.

How are stars formed?

Star Formation

Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.

How do stars form from the interstellar medium?

Shock waves traveling through the ISM, the interstellar medium, can cause some areas of the molecular cloud to compress into very high densities, high enough to form stars. When molecular clouds collapse as a result of shock waves, they fragment.

What is the relationship between mass and the lifespan of a star?

A star’s mass gives a measure of the amount of “fuel”, and its luminosity gives a measure of the rate at which this “fuel” is consumed by nuclear burning, so a star’s lifetime is proportional to its Mass divided by its Luminosity.

What are the 7 stages of a star?

Formation of Stars Like the Sun

• STAGE 1: AN INTERSTELLAR CLOUD.
• STAGE 2: A COLLAPSING CLOUD FRAGMENT.
• STAGE 3: FRAGMENTATION CEASES.
• STAGE 4: A PROTOSTAR.
• STAGE 5: PROTOSTELLAR EVOLUTION.
• STAGE 6: A NEWBORN STAR.
• STAGE 7: THE MAIN SEQUENCE AT LAST.

What are the 9 stages of a star?

The formation and life cycle of stars

• A nebula. A star forms from massive clouds of dust and gas in space, also known as a nebula. …
• Protostar. As the mass falls together it gets hot. …
• Main sequence star. …
• Red giant star. …
• White dwarf. …
• Supernova. …
• Neutron star or black hole.

What stages do life cycles include?

An industry life cycle has four stages: expansion, peak, contraction, and trough.

What are the stages of a low mass star?

Low mass star

• Main Sequence. Low mass stars spend billions of years fusing hydrogen to helium in their cores via the proton-proton chain. …
• Red Giant. When hydrogen fusion can no longer happen in the core, gravity begins to collapse the core again. …
• Planetary Nebula. …
• White Dwarf.

What happens at the end of a low mass stars life?

For low-mass stars (left hand side), after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf.

What happens at the end of a low mass star?

After a low mass star like the Sun exhausts the supply of hydrogen in its core, there is no longer any source of heat to support the core against gravity. Hydrogen burning continues in a shell around the core and the star evolves into a red giant.