She makes dirty words sound pretty

Dominique Wiegman.
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the-star-stuff: Mercury-sized exoplanet is being vaporized into a cloud of gas Something very strange is happening around the star KIC 12557548. Its light dims every 15 hours, as though a planet is orbiting around it…except the dimming varies wildly each time around. A planet is being vaporized before our eyes. According to researchers led by Saul Rappaport of MIT, the star’s orbital companion is a rocky planet about twice the mass of Mercury orbiting at just a hundredth the distance between the Sun and Earth, a distance known as an astronomical unit (AU). For the sake of comparison, Mercury even at its closest approach to is always at least 0.3 AU from the Sun. At such a tiny distance, this planet would roast at 2,000 Kelvin, which would easily be hot enough to vaporize the common minerals that make up rocky planets. [Via arXiv. For more, check out New Scientist. Artist’s conception of Planet HD 209458b by ASA, European Space Agency, Alfred Vidal-Madjar (Institut d’Astrophysique de Paris, CNRS).]

the-star-stuff:

Mercury-sized exoplanet is being vaporized into a cloud of gas

Something very strange is happening around the star KIC 12557548. Its light dims every 15 hours, as though a planet is orbiting around it…except the dimming varies wildly each time around. A planet is being vaporized before our eyes.

According to researchers led by Saul Rappaport of MIT, the star’s orbital companion is a rocky planet about twice the mass of Mercury orbiting at just a hundredth the distance between the Sun and Earth, a distance known as an astronomical unit (AU). For the sake of comparison, Mercury even at its closest approach to is always at least 0.3 AU from the Sun. At such a tiny distance, this planet would roast at 2,000 Kelvin, which would easily be hot enough to vaporize the common minerals that make up rocky planets.

[Via arXiv. For more, check out New Scientist. Artist’s conception of Planet HD 209458b by ASA, European Space Agency, Alfred Vidal-Madjar (Institut d’Astrophysique de Paris, CNRS).]

POSTED January 24 2012 12 29 AM ♥ 58 notes
Reblogged from: fyeahalan via posted by: the-star-stuff
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