3 ms·
Sorry but the chart shows nothing. At this distance from the sun the gradient would be quite smoothed out so you just need to pick energy level (they choose 0.5
by dvh 8y ago
Sorry but the chart shows nothing. At this distance from the sun the gradient would be quite smoothed out so you just need to pick energy level (they choose 0.5MeV) and saw there drop below in October, if they choose 0.6 the drop would be sooner, if they choose 0.4 the drop would be later. I am aware about bow shock and termination shock but this number is just randomly picked it doesn't mean anything.
What I'm trying to say is that if you are trying to show that voyager's surrounding environment suddenly changed, this is the worst possible chart to use. If the gradient was perfectly linear, you would still see sudden drop at some point, depending on which random threshold you choose.
- dwaltrip 8y agoWhy would there be a sudden drop in that graph even if the actual boundary environment had a linear gradient of particle density as you move through it? I was assuming the "0.5 MeV/nuc ions" just meant they are counting all nucleons they encounter with at least that much (kinetic?) energy. I don't see how your interpretation works with that, but I could very easily be missing something. My naive interpretation is that the graph does a great job of demonstrating the environmental change.
- spuz 8y agoIt's possible the particle energies are very homogeneous i.e before the drop they were all just above 0.5MeV with very low std deviation and after the drop they were all just below 0.5MeV. You cannot tell from the graph what the true drop off is because you cannot tell how their energies were distributed.