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A star must have at least a certain mass, the exact number depends on the star's composition, in order for gravity to be strong enough to sustain fusion of hydrogen-1 at the core. Bodies just under that mass are known as brown dwarfs, which have a mass somewhere between the largest gas giants and the smallest stars.

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Why is there a lower limit on the mass that a star may have?

It's because a gas cloud has to have a critical mass in order to generate enough temperature to start the nuclear processes that enable the star to radiate heat and light.


What is the lower limit for the mass of neutron stars?

Well, friend, neutron stars are truly marvelous. On their cosmic canvas, the lower limit for their mass is about 1.4 times the mass of our sun. That's a comforting thought to know these celestial wonders come in a variety of sizes.


The minimum mass of a star required for it to become a neutron star is?

Approximately 1.4 times the mass of the sun, known as the Chandrasekhar limit, is required for a star to become a neutron star. If a star has a mass greater than this limit, it will likely undergo a supernova explosion and collapse into a neutron star.


Is the sun a lower mass star or a higher mass star and which stage is it in?

The Sun is a medium mass star on the main sequence.


The main sequence has a limit at the lower end because?

the main sequence has a limit at the lower end because as a star's mass decreases, its core temperature and pressure decrease too. This eventually causes the nuclear fusion reactions in the core to stop, leading the star to move off the main sequence.


Why is there an upper limit to the mass of neutron stars?

There is an upper limit to the mass of neutron stars because if the neutron star is too massive, neutrons would be crushed by the gravity of the neutron star, and the neutron star would collapse into a black hole.


An object forms with a mass of 0.017 Msun. Is it a star or planet?

The difference between a star and a planet with such a mass is kind of fuzzy. I would say it is a brown dwarf - a very small and dim star. The smallest known star is currently OGLE-TR-122b with a mass of 0.09 Msun. THey think the lower limit for a star to have fusion occur is about 0.08 Msun. So, an object with 0.017 Msun would be a planet.


What is the smallest mass a newborn star can have?

The smallest mass a newborn star can have is about 8% of the mass of our Sun, which is known as the hydrogen burning limit. Below this threshold, the core temperature and pressure are not sufficient to sustain nuclear fusion reactions that define a star. These lower mass objects are classified as brown dwarfs, which lack the ability to generate energy through sustained nuclear fusion reactions like stars.


What is the connection between chondro shekhor limit and black hole?

The Chandrasekhar limit describes the maximum stable mass of a highly compressed type of star called a white dwarf - a collapsed remnant of a star towards the end of its life cycle. This mass limit is about 1.44 times the mass of the sun; above this mass, gravitational force is calculated to overcome the outward pressure and thus precipitate further collapse, for example, into a neutron star. If the neutron star is of sufficient mass it may yet again collapse further, into more exotic states including possibly a black hole. Note that the mass limit of a neutron star (the Tollman-Oppenheimer-Volkoff limit) of around 3-4 solar masses is separate and distinct from the Chandrasekhar limit - you might say that the Chandrasekhar limit is just one of the mass limits along the stellar remnant's evolution into a black hole.


Is Sirius a low mass star?

It is, but at twice our suns mass, Sirius A is on the limit, of being an intimidate mass star. Sirius A will have a life cycle similar to that of our own star which is a low mass star, but burns hotter. Sirius B is a companion white dwarf star with a mass of around the same as our sun. Previously, it was thought to have been a star with a mass of around 5 times that of our sun, burning out more quickly than Sirius A.


Why is why is there an upper limit to the mass of neutron stars?

There is an upper limit to the mass of neutron stars because if the mass exceeds a certain value, known as the Tolman–Oppenheimer–Volkoff limit, the gravitational force would overcome the pressure from neutron degeneracy and cause the star to collapse further into a black hole. This limit is estimated to be around 2-3 times the mass of the Sun.


What is the Chandra analysis?

Hopefully you mean the Chandrasekhar Limit or Chandra Limit (Named after the Indian born Astrophysicist bearing that name) which states the maximum mass of a White Dwarf Star. If the Star exceeds this limit, then gravity will overcome pressure within the Star and it will collapse into a Neutron Star or Black Hole. See link for further information