Dark Matter in the Milky Way and Beyond

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  • เผยแพร่เมื่อ 4 ต.ค. 2024

ความคิดเห็น • 16

  • @LuciFeric137
    @LuciFeric137 4 ปีที่แล้ว +1

    Very interesting. Thank you professor.

  • @JustaReadingguy
    @JustaReadingguy 5 ปีที่แล้ว +1

    Wow great stuff.

  • @christopherreed2694
    @christopherreed2694 ปีที่แล้ว

    Not all of us with dyslexic learning disorder I put a lot of time into listening to you your very smart 😉 I thank you for speeding up my learning rather than learn 🙂 something not followed

  • @elijaguy
    @elijaguy 2 ปีที่แล้ว

    I wonder why Zwicky didnt call it transparent matter. Dark interacts with light: it absorbs it. therefore it becomes dark, therefore it is opaque. While Dunkles Materie is invisible, absolutely transparent, and this quality is what haunts the scientists and also us, the laymen.

    • @JasonKendallAstronomer
      @JasonKendallAstronomer  2 ปีที่แล้ว

      I always thought it could've ben namd "Doesn't Matter" or auf Deutche "Matter Nicht".

    • @elijaguy
      @elijaguy 2 ปีที่แล้ว

      @@JasonKendallAstronomer LOL you are funny!

  • @elijaguy
    @elijaguy 2 ปีที่แล้ว +1

    27:13 NOBOKs. (nobody knows' s )

  • @butHomeisNowhere___
    @butHomeisNowhere___ 4 ปีที่แล้ว +1

    Am I correct in saying that, given the data, it looks like the dark matter density increases with the distance from the nucleus? Sort of like how a mattress will lift up around your body when you lay on it, the dark matter increases *around* baryonic matter?

    • @JasonKendallAstronomer
      @JasonKendallAstronomer  4 ปีที่แล้ว +2

      Not quite. Dark matter is distributed much more evenly. It’s “hot” dynamically, and it has a hard time losing energy of motion (kinetic energy) because it doesn’t interact with light (electromagnetic interaction). Therefore it stays spread out and the density doesn’t drop off as fast as the regions which emit light.

  • @book3100
    @book3100 ปีที่แล้ว

    I don't have the math, yet, but doesn't dark matter smell a little bit like luminiferous aether?

    • @JasonKendallAstronomer
      @JasonKendallAstronomer  ปีที่แล้ว +1

      Can’t you smell that smell?
      Skynyrd likely knew something about luminiferous aether.

    • @book3100
      @book3100 ปีที่แล้ว

      @@JasonKendallAstronomer lol, I suppose so. 😆👍
      I'm learning. It's just hard to take some things as given. Which is why I'm trying to learn the math at this later stage. I gotta know, ya know?
      Thanks Prof, for being here.

    • @JasonKendallAstronomer
      @JasonKendallAstronomer  ปีที่แล้ว

      You’ll want to get this book.
      An Introduction to Modern Astrophysics
      a.co/d/ilgFNDq

  • @HotPinkst17
    @HotPinkst17 4 ปีที่แล้ว +1

    Stellar black holes are hard to directly detect, couldn't dark matter just be a mix of all the hard to detect objects in greater than expected quantity? If our tech can't 'see' it then it must be dark matter doesn't seem like a scientific explanation for making the extraordinary claim of a new substance all that strongly.

    • @pensiring7112
      @pensiring7112 4 ปีที่แล้ว

      Is far as i know, the number of black holes required would be fare too large. But there is always the possibility that there is not excess mass, but some flaw in our calculations.

    • @JasonKendallAstronomer
      @JasonKendallAstronomer  4 ปีที่แล้ว +1

      Those are called MACHOs and searches have been done. They do exist, but they are not in great enough amounts to account for the missing mass.