Showing posts with label astronomi. Show all posts
Showing posts with label astronomi. Show all posts

Saturday, May 25, 2013

The existence of Cosmic Dust in the Universe

The existence of Cosmic Dust in the Universe | New

Cosmic dust was also recycled by the universe. The resulting cosmic star dust then blown by the solar wind from the stellar explosion. Dust was then recycled in interstellar space and forming gas clouds / nebula which can then again be the star formed. For the cosmic dust

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SN2010jl supernova, Supernova At least I've found

SN2010jl supernova, Supernova At least I've found | New

  Observations made with NASA's Chandra X-ray Observatory, provides new evidence that the shock wave generated by the supernova is able to penetrate a collection of gas around a star that exploded. This discovery may help astronomers know the why some explosions

supernova supernova stronger than others.

On 3 November 2010, a supernova was found in galaxy UGC 5189A, located 160 million light-years from Earth with TODD data from the All Sky Automated Survey Telescope in Hawaii.

Composite image of UGC 5189A shows X-ray data in purple and optical data from Hubble telekop in red, green, and blue. SN 2010jl is the top of the galactic X-ray light is very bright.

Quoted from spacedaily.com, Tuesday (22/05/2012), The research team used NASA's Chandra X-ray Observatory to observe this supernova in December 2010 and October 2011. This supernova is one of the brightest supernova of other supernova ever detected by X-rays.

With optical light, SN 2010jl 10 times brighter than other types of supernova that resulted from the explosion of massive stars. And it goes into the brightest supernova group that is currently known by the optical survey. Different explanations proposed to explain the supernova energy including supernova blast wave interaction with matter density around the star will explode. Radioactive resulting from instability of the supernova (dipisu by the conversion of gamma rays into particle and anti-anti-particle), and the emission from the core of the star with a strong magnetic field which is not unusual.

Data retrieved from NASA's Chandra X-ray Observatory shows that the X-rays from the supernova blast wave is absorbed by the surrounding gas collection. And collection of the gas comes from the star is still before he explodes.
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Why Shape the Earth Circling the Sun's orbit elliptical?

Why Shape the Earth Circling the Sun's orbit elliptical? | New

Question:Why form trajectory / orbit of the Earth around the sun is elliptical ?

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NASA satellite Hemisphere Take Photos At Night All Day

NASA satellite Hemisphere Take Photos At Night All Day | New

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Mars Asteroid Hit 200 Times a Year

Foto kawah baru sebagai hasil dari tabrakan meteor di Mars yang diambil oleh wahana HiRISE NASA. I
Mars Asteroid Hit 200 Times a Year | New



NASA recently revealed that the planet Mars was more frequently hit by asteroids and comets than previously thought. Mars was hit by asteroids many as 200 times each year. The average asteroid that hit the planet measuring 1-2 meters.

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It Able Star Forming Galaxies Hundreds of Times Faster than the Milky Way

Galaksi SDSS J1506 +54. Image credit: NASA
It Able Star Forming Galaxies Hundreds of Times Faster than the Milky Way | New

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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Gemini Observatory Use New Technique for Orion Bullets Photos

Foto baru Peluru Orion yang diambil oleh Gemini Observatory dengan menggunakan GeMS pada 28 Desember 2012.
Gemini Observatory Use New Technique for Orion Bullets Photos | New

Team of the Gemini Observatory successfully developed a technique for image object space. This time the object of shooting them is part of the Orion nebula called "Bullet Orion" (Orion Bullets).

Orion Nebula itself is a nebula that can be seen even with the naked eye. That's because the distance is relatively close to the Earth which is about 24 light-years away in the constellation Orion. Recent photos developed by researchers at the Gemini Observatory is the result of the development of image retrieval method previously called Altair. Altair is one of the instruments at the Gemini Observatory in 2007 and it used to take a photo of "Bullet Orion".

Benoit Neichel as the scientist who led the development of methods and systems of the Gemini Observatory said it was busy for a few years with the development of a new system that is possible to be able to take pictures of the sky objects more clearly. The new system called GEMS.

The result on 28 December, 3 days before the new year Gemini Observatory Bullets managed to photograph the nebula with stunning results. Her picture was 2.5 times and 16 times finer details.

To see the difference Orion Bullets photo taken in 2007 to 2012, you can see below:

Perbedaan foto yang diambil dengan Altair (2007 sebelah kiri) dengan yang diambil GeMS (2012 sebelah kanan) terlihat hasil jepretan GeMS lebih baik dan lebih jelas.
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