Strange Planet With A Radius Of Proportion
Jumat, 18 Januari 2013
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Detected A Strange Planet With A Radius Of Proportion To Its Mass: An international team of scientists, including researchers are from the National University of Distance Education and the Instituto de Astrofisica de Canarias, has discovered a planet outside our solar system that has features " unusual ".
As explained by experts, has a radius of proportion to its mass does not follow the current theories of planet formation."It is a special planet because it has a very large radius, given its mass and age, and according to current theories of planet formation," said researcher Luis Sarro UNED Baro, who pointed out that these theories predict that radii of the newly formed planets decrease with the passage of time as they radiate its internal energy.So, if you consider that the discovered exoplanet and its parent star formed 600 million years ago, the body should be sized 20 percent higher than that of Jupiter and not 50 percent, as shown.To perform this finding, published in 'Monthly Notices of the Royal Astronomical Society', astronomers have worked with the United Kingdom Infrared Telescope located in Hawaii and have used infrared photometry techniques.The infrared photometry used by scientists is a common technique to detect planets in direct images, but not to find them through their transits or eclipses.
By measuring the brightness of hundreds of thousands of stars in the same region of sky over time, can detect bodies in orbit around them if the motion is such that, at some point, the planet passes in front, an eclipse occurs and decreases the apparent brightness of the star.With this technique has been shown that the exoplanet is a gaseous body, known as 'hot Jupiters', because it shares the characteristics of the gas giant, but orbits its star (WTS-1) at a distance much less than that This makes the Sun"For comparison, the Earth is one astronomical unit away from its star, Jupiter is 5.2 astronomical units and WTS-1b, only 47 thousandths of astronomical unit (0.047) of yours," he explained astrophysicist.Four times the gas giantThe exoplanet's radius is 1.5 times the mass of Jupiter and its four times higher. It is located in the disk of the Milky Way, 10,400 light years away from the Earth. Meanwhile, the star has a radius about 15 percent higher than the Sun and its temperature is higher.Another common feature of exoplanet-any 'Jupiter caliente'-is believed to not be created in the same location where you are now, but much farther from their star and subsequently moved to the current position.The closeness between the two bodies WTS-1b places away from the habitable zone but that does not necessarily mean that it can not accommodate lifestyles. "On Earth, life exists in places such adverse conditions as Rio Tinto, Antarctica or ocean vents, and that years ago was unthinkable," he pointed Sarro.
As explained by experts, has a radius of proportion to its mass does not follow the current theories of planet formation."It is a special planet because it has a very large radius, given its mass and age, and according to current theories of planet formation," said researcher Luis Sarro UNED Baro, who pointed out that these theories predict that radii of the newly formed planets decrease with the passage of time as they radiate its internal energy.So, if you consider that the discovered exoplanet and its parent star formed 600 million years ago, the body should be sized 20 percent higher than that of Jupiter and not 50 percent, as shown.To perform this finding, published in 'Monthly Notices of the Royal Astronomical Society', astronomers have worked with the United Kingdom Infrared Telescope located in Hawaii and have used infrared photometry techniques.The infrared photometry used by scientists is a common technique to detect planets in direct images, but not to find them through their transits or eclipses. By measuring the brightness of hundreds of thousands of stars in the same region of sky over time, can detect bodies in orbit around them if the motion is such that, at some point, the planet passes in front, an eclipse occurs and decreases the apparent brightness of the star.With this technique has been shown that the exoplanet is a gaseous body, known as 'hot Jupiters', because it shares the characteristics of the gas giant, but orbits its star (WTS-1) at a distance much less than that This makes the Sun"For comparison, the Earth is one astronomical unit away from its star, Jupiter is 5.2 astronomical units and WTS-1b, only 47 thousandths of astronomical unit (0.047) of yours," he explained astrophysicist.Four times the gas giantThe exoplanet's radius is 1.5 times the mass of Jupiter and its four times higher. It is located in the disk of the Milky Way, 10,400 light years away from the Earth. Meanwhile, the star has a radius about 15 percent higher than the Sun and its temperature is higher.Another common feature of exoplanet-any 'Jupiter caliente'-is believed to not be created in the same location where you are now, but much farther from their star and subsequently moved to the current position.The closeness between the two bodies WTS-1b places away from the habitable zone but that does not necessarily mean that it can not accommodate lifestyles. "On Earth, life exists in places such adverse conditions as Rio Tinto, Antarctica or ocean vents, and that years ago was unthinkable," he pointed Sarro.
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Judul: Strange Planet With A Radius Of Proportion
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