What is the maximum mass for a star? What kind of pressure limits how massive a star can be?

What is the maximum mass for a star? What kind of pressure limits how massive a star can be?|||Actually there r stars of many sizes in universe with fixed possible limit.The reason could be following


1)All stars vary in chemical composition just like planets,That's y some nebulas occur multicolored


2)Stars r simply not made up only of Hydrogen %26amp; Helium cos no 1 ever analysed core of a star.He %26amp; Hydrogen r detected only surface of star.Since pressure is heavy on inside of a star atoms holding should also be heavier or strongly bonded or elements formed must be having greater atomic mass due to some of the most violent Fission %26amp; Fusion reactions.Stronger the core better the amount of mass can be held


3)Wierdest thing is gravity at the center of earth or any spherical is '0'.So tonnes of mass doesn't actually have any gravitational pull at that center suggesting wide possibilities|||A star's maximum mass is set by the tendency of large stars to drive strong winds from their surface. As the size of a star increases, the luminosity of the star increases. The radiation from a star exerts pressure on the atmosphere of the star, and if the pressure is great enough, a substantial wind is created that drives off a large fraction of the star's mass. Estimates place the maximum size of a star at around 350 times the mass of the sun.|||For a white dwarf, the upper limit is the Chandrasekhar Limit, which is about 1.4 solar masses, after which, the pressure of the inside of the electron can't withstand the gravitational force on the star from the mass of the star. Once the Dwarf has Surpassed this limit, it collapses into its self, forming either a Neutron Star or a Black Hole.





I'm not sure on the upper limit for the mass of other types of stars, but I hope I helped a bit.|||The size of a star is the result of a balance between gravity pulling inward and radiation pressure pushing outward. The radiation pressure increases in proportion to the fourth power of the mass. The strength of the gravitational force is directly proportional to the interior mass and inversely proportional to the square of distance from the interior mass. So as more massive stars are considered, you eventually find a mass where the star blows away its outer layers, until the remaining mass is under the allowed maximum. I'd been taught in school that the maximum mass for a main sequence star is 60 solar masses. Later, I heard about stars having more than 100 solar masses. And recently I'd heard a report of a star having more than 200 solar masses. So probably the maximum is around 250 to 300 solar masses.



Now, these massive stars are also very rare. Even stars over 20 solar masses are only about one star per million stars. Stars less massive than the sun about about 9 times more numerous than stars more massive than the sun.|||The star R136a1 is the most massive non-neutron star ever found, with a current mass of about 265 solar masses. (http://www.sciencedaily.com/releases/201鈥?/a>