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Black hole confirmed in Milky Way

Discussion in 'Habari na Hoja mchanganyiko' started by BAK, Dec 11, 2008.

  1. BAK

    BAK JF-Expert Member

    #1
    Dec 11, 2008
    Joined: Feb 11, 2007
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    Black hole confirmed in Milky Way
    By Pallab Ghosh
    Science correspondent, BBC News


    [​IMG]
    The Milky Way was tracked from an observatory in Chile​

    There is a giant black hole at the centre of our galaxy, a study has confirmed.

    German astronomers tracked the movement of 28 stars circling the centre of the Milky Way, using two telescopes in Chile.

    The black hole is four million times more massive than our Sun, according to the paper in The Astrophysical Journal.

    Black holes are objects whose gravity is so great that nothing - including light - can escape them.

    According to Dr Robert Massey, of the Royal Astronomical Society (RAS), the results suggest that galaxies form around giant black holes in the way that a pearl forms around grit.

    'The black pearl'

    Dr Massey said: "Although we think of black holes as somehow threatening, in the sense that if you get too close to one you are in trouble, they may have had a role in helping galaxies to form - not just our own, but all galaxies.

    The most spectacular aspect of our 16-year study, is that it has delivered what is now considered to be the best empirical evidence that super-massive black holes do exist

    Professor Reinhard Genzel
    Head of the research team

    "They had a role in bringing matter together and if you had a high enough density of matter then you have the conditions in which stars could form.

    "Thus the first generation of stars and galaxies could have come into existence".

    The researchers from the Max Planck Institute for Extraterrestrial Physics in Germany said the black hole was 27,000 light years, or 158 thousand, million, million miles from the Earth.

    "Undoubtedly the most spectacular aspect of our 16-year study, is that it has delivered what is now considered to be the best empirical evidence that super-massive black holes do really exist," said Professor Reinhard Genzel, head of the research team.

    "The stellar orbits in the galactic centre show that the central mass concentration of four million solar masses must be a black hole, beyond any reasonable doubt."

    Observations were made using the 3.5m New Technology Telescope and the 8.2m Very Large Telescope (VLT) in Chile. Both are operated by the European Southern Observatory (Eso).
     
  2. Pundit

    Pundit JF-Expert Member

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    Dec 11, 2008
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    This information was known, I am interested to find if they have any new particulars.
     
  3. Kichuguu

    Kichuguu Platinum Member

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    Dec 11, 2008
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    Yes,

    I heard this discussion on Ira Flatow's program on NPR: Talk of the Nation-Science Friday. It was an interesting discussion, but I haven't read the details.
     
  4. Azimio Jipya

    Azimio Jipya JF-Expert Member

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    Dec 11, 2008
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    On this news there is no very new news.... lets hope there some update on it!

    And

    and

    The study shows and predicts that the whole formed universe is the result of metabolic universe... the "unfomed universe" within which no space, mass and time can exist before it is completely metabolise.
     
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