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Fundamental Research Division
meilleur site de rencontre france The DRF at the CEA assemble approximately 6,000 scientists since January 2016.
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prostituées martinique At the center of a small galaxy located about 1.8 billion light-years from Earth, a giant black hole swallowed a star for about a decade, which is exceptionally longer than any observed episode of this kind. This discovery was made by an international collaboration involving an astrophysicist from IRFU, thanks to a trio of orbiting X-ray telescopes.
rencontre celibataire amiens rencontre avec yann barthes Wfaire rencontre pas calais hen a star comes near a black hole, the tidal forces caused by the intense gravity of the black hole can destroy the star. Some debris are ejected at high speed from the black hole, while the rest falls on it inexorably, heating up to millions of degrees and emitting characteristic X-rays.
aide et rencontre Since 2005, an X-ray source associated with a Tidal Disruption Event has been detected in X-rays by Chandra (NASA), Swift (NASA) and XMM-Newton (ESA) observations. The quickly increasing brightness and long bright phase raises the following question for the scientists: Did the black hole devour the most massive star ever observed during such an event, or did it completely swallow a smaller star?
rencontres 16 This study should better explain how black holes could reach nearly a billion solar masses when the universe was only one billion years old.
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CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.