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Galactic Chicken and Egg

dhani — March 3, 2009 / 8:01 pm

Galaxies and the giant black holes at their hubs fit together as if they were made for one another. Did the holes come first and guide the formation of their galaxies, did the galaxies come first and build up holes, or did some common factor sculpt both?

As reported on March 2009 edition of Scientific American Magazine, Christopher Carilli of the National Radio Astronomy Observatory and his colleagues argued that the holes came first. On the American Astronomical Society meeting in January they presenting their finding that galaxies in the early universe were 30 times more massive than their black holes, whereas present-day galaxies are 1,000 time heavier. “Black holes came first and somehow—we don’t know how—grew the galaxy around them,” Carilli said.

Other astronomers were skeptical, wondering whether the ancient galaxies seem undersized merely because of a statistical selection effect. Even if true, the study does not explain how a black hole can nurture a galaxy; if anything, it should tear it apart.

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Ikuti diskusi Satu komentar untuk artikel ini.

  1. ibnusomowiyono

    I think something is created from nothing,not directictly or intaniously but throught the supernatural fenomenon where all have no mass, than come to natural where all have mass. It happened befor Bigbang,and continue till nowdays.
    Please search: teori minimalis from http://www.google.com

    August 3rd, 2009 at 5:30 am

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