Starburst Galaxies Research Paper

The process which occurs depends on the mass of the star with heavy stars, over 1.3 times the size of our sun, having a higher proportion of fusion occurring

The Cartwheel Galaxy is the result of a collision between two galaxies. Find out more about it in this Bright Hub article.

Galactic bars develop when stellar orbits in a spiral galaxy become unstable and deviate from a circular path. The tiny elongations in the stars’ orbits grow and get locked into place, forming a bar. The bar becomes even more pronounced as it collects more and more stars in elliptical orbits. Eventually, a high fraction of the stars in the galaxy’s inner region join the bar. This process has been demonstrated repeatedly with computer-based simulations. (Administration)

During the condensing of the star’s core, the neutrinos are able to escape, but the neutrons are squished together so much that their density is the same of an atomic nucleus’ density. A violent explosion happens during this process and its called a “supernova”. To put this into perspective, imagine taking something the size of our sun, if not bigger, and compacting it into an area the size of a city. This is so dense that just a teaspoon of it would weigh about 1 billion tons! Crazy, right?

seen day and night in the sky. It is now known as the crab nebula, and is a breeding ground for smaller stars. Another way for a supernova to be created, is when a white dwarf siphons off hydrogen from another star to the point where it will become unstable and explode.

Stars are born, grow old, and die, at rates that are related to their mass and any external pressures acting on them, similar to the life-cycle of all living things in the universe. The process in which stars change dramatically throughout their existence is called stellar evolution and can take millions to billions of years. Stellar evolution describes how stars transform over time, from birth, through life, which includes growth, and ending in death. Fusion, the force that generates energy, is balanced by the pull of gravity, resulting in the progression and development of the star.

The Low mass stars spend there main life as a fusion machine which turns hydrogen into helium and a very slow and methodical pace. When the energy released by this fusion reaches the surface it is released into space and this is the star luminosity. Over a long, long time sometimes billions of years a low mass star consumes the hydrogen in its core and converts it to helium, at which point the core starts to contract and shrink. Once all of the hydrogen inside the stars core begins to become totally exhausted, the core pressure gives way to the crush of gravity because it has no more fusion occurring in its core at that time. As the core shrinks rapidly and the outer layers start to expand the stars shape begins to grow in size and its luminosity becomes extraordinary brighter due to the outer shell starting to produce fusion more rapidly then the core did during the main sequence life of the star. As this situation grows more rapidly and extreme the core starts to rapidly burn again and fuse its core helium into carbon. Then just before its final death the star ejects its outer layers into space. This leaves only the degenerate carbon core and since this core is still very hot it emits intensely powerful ultraviolet radiation and glows brightly in what is known as a planetary nebula. The nebula fades and cools over around a million or so years and we are left with a white dwarf cooling indefinitely till

There four of the brown dwarfs emitted jets (http://astronomy.swin.edu.au/cosmos/J/Jets) that are usually found in stars bigger than them in their formation.

Lots of matter was in a ball and then it exploded and the universe was created. All of that matter formed planets and galaxies. Our galaxy was created 5 billion years ago. We haven't been around that long figuratively speaking. As lots of gases and mass came together it formed the sun. when the sun was formed more and more of mass and gas came to our newborn galaxy and when they came together it form planets. When More and more planets and stars were formed the galaxy started to form. When a lot of gas and other matter comes together it can create a huge star or a sun. when stars or sun start to lose their energy. They will grow and grow till they become unstable. If the star is big enough it will turn into a black hole. A black hole is so strong that it can suck in anything, even light! When something gets sucked into it it will be crushed into nothing. In 4 billion years the galaxy next to us will get sucked into our gravitational pull and will collide with our solar system. When they collide it will create one big galaxy. Our solar system will have already been gone. Here are the types of galaxies, one of galaxy types are called the magellanic cloud. It has lots and lots of stars, five billion stars to be exact. Another type of a galaxy is the spiral galaxy. The milky way galaxy is a spiral galaxy. This is a lot of solar system rotating around a black hole or a white dwarf. The main type of galaxy is the elliptical galaxy. They look like a squashed up ball, they are the largest and the brightest galaxies in the universe. In the center of the galaxy there are constant explosions of millions of stars. They out number the spiral galaxies, if someone scattered 12 tennis balls across the united states they would be more crowded than the galaxies in the

A nebula is a star nursery where millions of new stars are created, nebulae vary is shape, size and temperature.Within the dark parts of a nebula are where the stars are usually born, within these dense, dark areas hydrogen-gas ,clouds and dust begin to spin as gravity crushes this matter into a super dense spherical shape, the beginning of a star.

Throughout the universe, there are dense molecular or dust clouds, known as interstellar clouds, and they are the first stage of a star. These clouds are incredibly large, containing thousands of times the mass of the Sun, and while they start out stable, for them to one day become a star, they must become unstable. Once this happens, they are no longer able to withstand their own gravity and they break into smaller pieces. The trigger for these events are still unknown, but astronomers think it is caused by some external event that forces the cloud to the next stage: cloud fragments.

All stars are born in nebulae. Nebulae are huge cold clouds of gas and dust. The formation of protostars requires huge clouds of gas and dust collapsing under gravitational forces. The stage of a protostar last an approximate of 50 million years. As stars grow, they also expand. When the core runs out of hydrogen and helium, the contacts and outer layers of the core expand, become cold, and the brightness decreases. This is also known as a Red Giant or a Red Supergiant which mainly consists of the star’s mass. After a while of beginning the process of its death it goes through other stages.

A supernova is a stellar explosion that occurs at the end of a star’s lifetime. It is one of the largest and most energetic explosions in space (S1). A supernova can briefly outshine an entire galaxy and radiate more energy than our sun will in its lifetime. That is about same brightness of 10 million suns (S2). Supernovae happen about every 50 years in a galaxy about the size of the Milky Way, which could be about every second in our universe (S3). Supernovae can happen in two ways depending on the mass of the star; Type I or Type II.

Stars are born in a very complicated way. First the gravitational collapse of a cool, dense molecular cloud sends fragments into space. The fragments then contract and form stellar cores. The stellar cores then rotate and condense as they increase in temperature, to the point that a nuclear reaction occurs. The new born star burns hydrogen into helium for 90 percent of its life and is a sequence star. A star’s mass changes as it burns more hydrogen.Once there is no more hydrogen for the star to burn off of, energy generation will stop and the core will start contracting. As the internal temperature increases a shell of hydrogen gets ignited. The star begins to expand enormously and increases in luminosity. The star expands so large that if our star started to expand like this it would swallow Mercury and

NASA’s Chandra X-ray observation exposed that a new generation of stars yield by a super-massive black hole of the center Milky Way