What is the initial mass function?

Initial mass function (IMF) was first derived in 1955 by Austrian astrophysicist Edwin Salpeter and is a method of calculating the range of different masses for stars that are made of condenser gases in space. It is a form of probability distribution that uses a complex mathematical and physical equation with the basic value of one solar, which represents the weight of the Earth's Sun as a gradation point for the range of other stars that are created. The assumption of the initial mass function in stellar astronomy is that it is much more common and is likely that low -matter stars are in space than for high matter stars, with stars having approximately 0.5 solar masses most common in the dairy galaxy, as most visible to most visible light.

According to most astronomy estimates since 2011 there has been somewhere between 200 000 000 and 400 000 000 000 stars in the galaxy of the Milky Way. The initial mass function predicts that most of these stars are that they are 0.9 solar materials or less, while less than 1% of them are size ranging from 8 to 120 solar materials. The IMF calculates materials based on when each star first created, and most stars start as dwarf stars only 0.085 to 0.8 solar materials. As these main sequential stars age, they tend to lose matter and gain volume.

Despite the broadly variable conditions in the retina areas of the space where the stars are formed, they proved to be true laws of initial mass functions. This means that whether stars are formed in small molecular clouds or in dense stellar clusters, the same distribution of stars range is created regardless of it. These observations are contrary to the theories of stars forming since 2011 due to conditions such as fact, in the metal dense area of ​​space should distribute stars ZHrhost a larger percentage of massively large stars.

It is estimated that in approximately 5,000,000,000 years the sun itself is expanding because it burns hydrogen fuel fuel and begins to connect Helium into heavier elements. At this stage of the Sun, it fills the volume of space extending into the orbit of the Earth for about 20% of its total life expectancy and maintains 50% of its previous matter as a red giant. As small stars such as the age of the Sun and the loss of matter in the process, increasingly biased the initial mass function of more towards the small weight end of the spectrum, largely because there are many more small stars.