Timeline for What is the additional gravitational term from general relativity given by?
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Jun 7, 2016 at 19:18 | vote | accept | user3741635 | ||
Jun 7, 2016 at 17:54 | comment | added | John Rennie | @user3741635: aha, Carroll derives the expression for a unit mass, i.e. $m=1$, so $m$ does not appear in his equation. | |
Jun 7, 2016 at 17:54 | history | edited | John Rennie | CC BY-SA 3.0 |
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Jun 7, 2016 at 5:01 | comment | added | John Rennie | Hmm, yes, OK. I'll have to see if I can dig out a copy of Carroll's book to see exactly what he has derived. The form of $V_\text{eff}$ I've given is the one I was taught, and the one that matches Wikipedia in the limit of $M\gg m$. | |
Jun 7, 2016 at 4:59 | comment | added | user3741635 | Sorry to bother you again John but you said that Carroll gives the potential per unit mass, so to get the potential I need to multiply by $m$ but doing that I get the effective potential as $$ V_{eff}(r) = \frac{1}{2}\epsilon\,m-\frac{GMm}{r} + \frac{m L^2}{2r^2} - \frac{GmML^2}{c^2r^3} \tag{1} $$ If you notice the last two terms are different from the last two term in Eq $(1)$ in you answer. Could you explain this please . | |
Jun 5, 2016 at 18:56 | vote | accept | user3741635 | ||
Jun 7, 2016 at 4:45 | |||||
Jun 5, 2016 at 18:49 | history | edited | John Rennie | CC BY-SA 3.0 |
Tweak
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Jun 5, 2016 at 18:39 | history | answered | John Rennie | CC BY-SA 3.0 |