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Thread: A New Cosmic Survey Offers Unprecedented View of Galaxies

  1. #1
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    Default A New Cosmic Survey Offers Unprecedented View of Galaxies



    Michael
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    Default Re: A New Cosmic Survey Offers Unprecedented View of Galaxies

    Wow! Cool article, Michael!

    Man, I need a bigger scope.
    Bryan

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    Default Re: A New Cosmic Survey Offers Unprecedented View of Galaxies

    Oh great now we are going to have a Herschel's 40 million
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    , various other bits and bob.

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    Default Re: A New Cosmic Survey Offers Unprecedented View of Galaxies

    Survey work..... it may seem boring with large numbers of more of the same, but it's essential!
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    Default Re: A New Cosmic Survey Offers Unprecedented View of Galaxies

    Quote Originally Posted by not_Fritz_Argelander View Post
    Survey work..... it may seem boring with large numbers of more of the same, but it's essential!
    And data you consider a great waste of space until you need it lol
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    , various other bits and bob.

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    Default Re: A New Cosmic Survey Offers Unprecedented View of Galaxies

    Thanks for the link Michael!

    This quote, "A 2015 study using Hyper Suprime-Cam sur-veyed 2.3 square degrees of sky and found gravitational signatures of nine clumps of dark matter, each weighing as much as a galaxy cluster (Miyazaki et al., 2015)," left me wondering what they meant by gravitational signatures of dark matter. I took a look at the Miyazaki 2015 paper and saw that these kinds of deep optical surveys are allowing the creation of "the first ever maps of dark matter distribution with weak lensing." Although I'm not clear on the details, they are using the survey images along with mapping techniques to identify structures to which dark matter is localized. Pretty amazing!
    Woody

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    Default Re: A New Cosmic Survey Offers Unprecedented View of Galaxies

    Yet another nail in the coffin for MOND?

    But then again it's a coffin made of nails in the coffin, so who's counting.





    Well, I for one.
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