Recent content by Dick Taid

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    Null geodesics of a Kerr black hole

    Hmm, thanks. :) I'm not entirely convinced though. But that's probably more due to my inability to state what it is I want with it. Here's everything (well, most of it): I'm doing a little project right now, where I'm trying to plot the timelike and lightlike orbits of some test particle...
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    Null geodesics of a Kerr black hole

    Homework Statement Hi, From the Kerr metric, in geometrized units, \left(1 - \frac{2M}{r}\right) \left(\frac{dt}{d\lambda}\right)^2 + \frac{4Ma}{r} \frac{dt}{d\lambda}\frac{d\phi}{d\lambda} - \frac{r^2}{\Delta} \left(\frac{dr}{d\lambda}\right)^2 - R_a^2...
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    Computer plot of particle orbits around Kerr black holes

    The only difference between the two editions, equation-wise, is that they in first edition confine themselves to the maximal Kerr black hole (a=M), while in the second edtion they generalize for all values of a, as well as converting to unitless entries by dividing through with M. But other than...
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    Computer plot of particle orbits around Kerr black holes

    Thank you for your suggestions. I've just looked at the source code of GROrbits, and I think I've suffered a massive brain aneurysm -- JAVA apparently makes less sense than I remembered. Looking at Taylor's draft again, it doesn't appear they have used another way of computing the orbits...
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    Computer plot of particle orbits around Kerr black holes

    Hi there, First post, so be gentle. I'm currently doing a project on Kerr black holes, part of which is based on a project in Edwin F. Taylor's book "Exploring Black Holes" (the chapter is found here) as well as some of Hartle's book (chapter 15). Part of my project, and as a way of better...
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