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Thread: Merging Monsters: Black holes and neutron stars!

  1. #1 Merging Monsters: Black holes and neutron stars! 
    Forum Junior Double Helix's Avatar
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    The BBC science section* is reporting that data from ALIGO indicates mergers of a black hole and a neutron star on two separate occasions. According to some who study mergers, these should not be happening with such frequency.

    Quoting from the article:

    "......according to current theories and past observations, neutron stars tend to be found with - and collide into - other neutron stars. And the same should be true of black holes."

    end quote"

    Unfortunately they do not say exactly why this is. Can someone spare me the time looking this up to understand why this is not expected?

    Does it have to do with the dynamics of core collapse in a binary star system, preventing the formation of a black hole and a neutron star as a binary? I hate it when they don't get into the specifics.

    This is pretty wild stuff.


    "Rare black hole and neutron star collisions sighted twice in 10 days"

    *https://www.bbc.co.uk/news/science-environment-57639520


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  3. #2  
    Forum Freshman dark_matter25275's Avatar
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    For a neutron star to merge with another neutron star...
    How does that happen? Wouldn't they orbit each other in a binary system?


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  4. #3  
    Forum Freshman dark_matter25275's Avatar
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    But for a neutron star to merge with a black hole, that wouldn't exactly happen since a black hole is considerably more massive than a neutron star.
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    Forum Junior Double Helix's Avatar
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    Quote Originally Posted by dark_matter25275 View Post
    But for a neutron star to merge with a black hole, that wouldn't exactly happen since a black hole is considerably more massive than a neutron star.
    But did you read the article?


    And if that wasn't enough, try this one out:

    "LIGO and Virgo detect rare mergers of black holes with neutron stars for the first time "

    https://news.mit.edu/2021/merger-bla...ron-stars-0629


    Last edited by Double Helix; August 16th, 2021 at 05:19 PM.
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  6. #5  
    Forum Freshman dark_matter25275's Avatar
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    That's better
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