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Thread: For the First Time, Planets Have Been Discovered in ANOTHER Galaxy!

  1. #1
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    For the First Time, Planets Have Been Discovered in ANOTHER Galaxy!

    Thanks to a new study performed by a pair of astrophysicists from the University of Oklahoma, the first extra-galactic planets have now been discovered!
    The post For the First Time, Planets Have Been Discovered in ANOTHER Galaxy! appeared first on Universe Today.


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  2. #2
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    This is incredible. I read this the other day.

    Something I don't quite understand.


    "Image of the gravitational lens RX J1131-1231 galaxy with the lens galaxy at the center and four lensed background quasars."


    So, in this popular image, the four artifacts aren't the detected planets right?


  3. #3
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    No, the planets are inferred from shifts in the spectrum, not actually seen. The four artifacts are different images of the same quasar, I think. A popular target for study, apparently: https://en.wikipedia.org/wiki/RX_J1131-1231

    Here's the paper: https://arxiv.org/abs/1802.00049, fwiw

    The other picture with the article is confusing, as the 'detected' planets must be unbound, so not in a solar system.
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  4. #4
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    Quote Originally Posted by slang View Post
    No, the planets are inferred from shifts in the spectrum, not actually seen. The four artifacts are different images of the same quasar, I think. A popular target for study, apparently: https://en.wikipedia.org/wiki/RX_J1131-1231

    Here's the paper: https://arxiv.org/abs/1802.00049, fwiw

    The other picture with the article is confusing, as the 'detected' planets must be unbound, so not in a solar system.
    Thanks, yeah. The article was pretty ambiguous about that.

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