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| Galaksi SDSS J1506 +54. Image credit: NASA |
It Able Star Forming Galaxies Hundreds of Times Faster than the Milky Way |
Astronomers recently managed to find a galaxy that turns into gas that is around the stars. This unique galaxy burn the gas to reach the level of 100 percent combustion efficiency. Astronomers found the galaxies after making observations through the IRAMPlateau de Bure interferometer in the French Alps, NASA's Wide-field Infrared Survey Explorer (WISE) telescope Hubble and NASA."The galaxy gas burning engines similar to gas-powered cars and galaxies that have a" machine "highly efficient gas" said Jim Geach from McGill University as the lead author of the study in the journal of astrophysics. "This galaxy is like a sports car, the difference between a galaxy's gas change at the level of change in the most efficient," he added.Galaxy named SDSS J1506 +54 was discovered when astronomers looking at the survey data generated by the WISE infrared and infrared galaxies have so obviously that is equivalent to a thousand billion times our sun. "Because WISE was able to observe the entire sky, the galaxy is seen very clearly from other objects," said Ned Wright of UCLA as the principal investigator of WISE."These galaxies formed their stars hundreds of times faster than our Milky Way galaxy and it is the most extreme star formation," said Jim Geach. Astronomers using the IRAM Plateau de ure instrument interferometer to measure the amount of gas available in the galaxy. The result is detected the light waves of carbon monoxide as an indicator of the presence of hydrogen gas is the fuel of stars.Of these data with the data then astronomers menggabungkannnya WISE and Iram (to measure the mass of gas) and the astronomers were able to get a measure of the efficiency of star formation. The results show that afisiensinya reached the maximum theoretical known as the Eddington limit. Appropriate areas of new star formation, then the nearby gas clouds collapse due to gravity.When the gas condenses and have the power to push the atoms to trigger nuclear fusion reactions, the new stars will be born and at the same time the wind and radiation of new stars that can prevent the formation of new stars other by pressing the gas around it to prevent collapse clouds and larger gas.Eddington limit is the limit of the point where the force of gravity pulls gas simultaneously balanced with the amount of pressure coming out of the star. If it exceeds the Eddington limit wan gas will explode and the star formation process will be stalled. "We see the gas flowing out of the galaxy is millions of miles per hour and gas is likely driven by the strong radiation of the stars that were there," said Ryan Hickox, astrophysicist Dortmouth College, Hanover.It causes a galaxy SDSS J1506 +54 is remarkable is its ability to produce very fast star and galaxy evolution period is also very short Yag possibility tersbuet galaxy is a merger of the two different galaxies. An estimated ten million years longer tersbeut galaxy will run out of gas and will turn into a large elliptical galaxy.
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