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  3. What would happen to a single human if they were put into the jet of a quasar?

What would happen to a single human if they were put into the jet of a quasar?

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  • P This user is from outside of this forum
    P This user is from outside of this forum
    [email protected]
    wrote on last edited by
    #1

    Like, obviously they would die immediately. But I'm wondering, would they be ripped to subatomic shreds? Would they somehow manage to set off a small nuclear explosion? Would they just get cooked as they're propelled into the void?

    curious_canid@lemmy.caC sasha@lemmy.blahaj.zoneS C 3 Replies Last reply
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    • P [email protected]

      Like, obviously they would die immediately. But I'm wondering, would they be ripped to subatomic shreds? Would they somehow manage to set off a small nuclear explosion? Would they just get cooked as they're propelled into the void?

      curious_canid@lemmy.caC This user is from outside of this forum
      curious_canid@lemmy.caC This user is from outside of this forum
      [email protected]
      wrote on last edited by
      #2

      The quasar wouldn't do anything that the vacuum hadn't already done...

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      • P [email protected]

        Like, obviously they would die immediately. But I'm wondering, would they be ripped to subatomic shreds? Would they somehow manage to set off a small nuclear explosion? Would they just get cooked as they're propelled into the void?

        sasha@lemmy.blahaj.zoneS This user is from outside of this forum
        sasha@lemmy.blahaj.zoneS This user is from outside of this forum
        [email protected]
        wrote on last edited by
        #3

        I did a little snooping and found someone claiming to have a source on the diameter of a jet, but their link went nowhere. I think it's this though. Anyway, at 0.05 light years across and presumed circular, a human body purposefully over estimated to have a cross sectional area of 2m^2, would be subject to 28.5 gigawatts.

        Wolfram Alpha very kindly points out that this is the equivalent of nearly two and a half space shuttles blasting you, boosters and all. Good luck!

        I've no idea how accurate this is, but googling gave me an estimate of the energy required that suggests it would take a little less than three seconds to vaporize an entire body. If it can create a plasma, that counts as subatomic in my books, but I've no idea what that would take.

        Nuclear would depend more on the particle kinematics and I've got no intuition there tbh. I'm sure it's certainly possible though, especially if you get close.

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        • P [email protected]

          Like, obviously they would die immediately. But I'm wondering, would they be ripped to subatomic shreds? Would they somehow manage to set off a small nuclear explosion? Would they just get cooked as they're propelled into the void?

          C This user is from outside of this forum
          C This user is from outside of this forum
          [email protected]
          wrote on last edited by
          #4

          I mean, technically you're in one right now. Some of them just randomly point in our direction. But I'm sure you mean up close.

          It's particles going a significant fraction of the speed of light, but you may well have a few of those going through you as we speak. I don't know how much is known about how wide they are exactly, or how dense, but it's possible you'd die slowly from radiation poisoning rather than of anything more dramatic.

          Some things look a lot more impressive from far away, like nebulae, which are almost perfect vacuums that are just a bit less perfect than their surroundings.

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          • curious_canid@lemmy.caC [email protected]

            The quasar wouldn't do anything that the vacuum hadn't already done...

            C This user is from outside of this forum
            C This user is from outside of this forum
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            wrote on last edited by [email protected]
            #5

            You can actually survive a vacuum pretty well, until you asphyxiate.

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            • sasha@lemmy.blahaj.zoneS [email protected]

              I did a little snooping and found someone claiming to have a source on the diameter of a jet, but their link went nowhere. I think it's this though. Anyway, at 0.05 light years across and presumed circular, a human body purposefully over estimated to have a cross sectional area of 2m^2, would be subject to 28.5 gigawatts.

              Wolfram Alpha very kindly points out that this is the equivalent of nearly two and a half space shuttles blasting you, boosters and all. Good luck!

              I've no idea how accurate this is, but googling gave me an estimate of the energy required that suggests it would take a little less than three seconds to vaporize an entire body. If it can create a plasma, that counts as subatomic in my books, but I've no idea what that would take.

              Nuclear would depend more on the particle kinematics and I've got no intuition there tbh. I'm sure it's certainly possible though, especially if you get close.

              C This user is from outside of this forum
              C This user is from outside of this forum
              [email protected]
              wrote on last edited by [email protected]
              #6

              Matter in the jets goes at like 0.25c, which some quick research tells me is absolutely enough to overwhelm the coulomb barrier and cause nuclear reactions.

              Where is that image from? I was expecting a lot wider. (And it's going to be speculation because we have limited resolution that far away)

              sasha@lemmy.blahaj.zoneS 1 Reply Last reply
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              • C [email protected]

                Matter in the jets goes at like 0.25c, which some quick research tells me is absolutely enough to overwhelm the coulomb barrier and cause nuclear reactions.

                Where is that image from? I was expecting a lot wider. (And it's going to be speculation because we have limited resolution that far away)

                sasha@lemmy.blahaj.zoneS This user is from outside of this forum
                sasha@lemmy.blahaj.zoneS This user is from outside of this forum
                [email protected]
                wrote on last edited by [email protected]
                #7

                No clue where the image is from, sorry.

                Yeah, figured it would be something relativistic like that, I was just looking at overall power to do that back of the envelope calculation. Considering how high the energy is at ~0.25c, it makes me wonder what the average particle spacing is in the jet at that diameter.

                I expect a lot wider too, the jets will diverge of course so it's going to depend on how far away from the star you're measuring. I just took 0.05lyr because it's a size I had a very shitty source for hahaha.

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                • sasha@lemmy.blahaj.zoneS [email protected]

                  No clue where the image is from, sorry.

                  Yeah, figured it would be something relativistic like that, I was just looking at overall power to do that back of the envelope calculation. Considering how high the energy is at ~0.25c, it makes me wonder what the average particle spacing is in the jet at that diameter.

                  I expect a lot wider too, the jets will diverge of course so it's going to depend on how far away from the star you're measuring. I just took 0.05lyr because it's a size I had a very shitty source for hahaha.

                  C This user is from outside of this forum
                  C This user is from outside of this forum
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                  wrote on last edited by [email protected]
                  #8

                  Yeah, we're pretty much short a variable here. If we had density, mass flux or (some rough measure of) diameter we could calculate the others, but we don't. That might be because it's actually unknown - they're all really far away. In any case, I doubt it's narrow and dense enough to really be very matter-like. It's a particle beam.

                  I expect a lot wider too, the jets will diverge of course so it’s going to depend on how far away from the star you’re measuring

                  Like I mentioned in my own reply, we're actually in the beams of multiple (distant) ones right now, just by random chance.

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