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Monday, June 18, 2012

Expected source of the fabric of the supermassive black holes

Tiny black holes (NCYT) are the effect of the fall down of individual stars. But the centers of most galaxies, including our own Milky Way, are unavailable by what is popularly known as black holes "supermassive". These holes whose accumulation is usually between one million and ten billion times the mass of our Sun Astrophysicists have long debated how they could grow as supermassive black holes for 14,000 million years since it was formed the universe. Some believe that black holes grow primarily by sucking large quantities of gas; others advocate the theory that grows primarily through the capture and absorption of stars. The second source of "nutrition" seems the most likely, judging by the results of a study conducted by the team of Ben Bromley astrophysicist at the University of Utah in the United States.

‘LAKE CHEKO’ IS THE IMPACT CRATER OF EVENT

They claim that Lake Cheko is the impact crater in the Tunguska Event. The observation by the team of Lake Cheko. Crà © dito: Geochemistry, Geophysics, Geosystems. / In the early hours of the MAA ± ana of June 30, 1908, occurred ³ a huge explosion in a remote part of Siberia near the Stony Tunguska River. So great was the explosion that knocks down trees ³ à ³ n in a circular patra s more than 2,000 km ³ ^ 2 and illuminates the sky from parts of Asia to Great Britain ± a. What causes this explosion ³ n has never been firmly resolved. The majority of researchers agree this was the result of a comet or meteoroid, with most leaning toward the former because of the lack of both an impact crater as a meteoroid fragments.

Dark matter is back, News Brief of Astronomy

Recent reports of the desertion of the dark matter may be greatly exaggerated, according to a new article by researchers at the Institute for Advanced Study (IAS). A group of astronomers using ³ ESO telescopes announced a-new-study-finds-no-matter-dark-in-the-vecindade in April a surprising lack of dark matter in the galaxy in the vicinity of the Solar System.