So in attempting to write code to randomly draw out the parameters, I have to know what each parameter is. I am still unable to decide what gamma and dvdt mean in the output of rv_fit_mp and also clueless as to the identity of cmvel and om are for rv_drive. I'm guessing om means omega though.
Still searching through literature to get good distribution functions to use.
Once I get these problems finished though, it should all come together smoothly.
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dvdt is a velocity trend parameter. For HD167042b this takes on a value of 2 m/s /yr. (Bowler et al 2010)
ReplyDeleteI guess it is some overall acceleration of the system, perhaps due to a companion.
I think cmvel would make sense as center of mass velocity. Right now I'm just going to set that to zero, but later I may think of adding in some random velocity offset. I'll have to think about that. Would it make it any more difficult to find a planet if there is a random velocity offset?
ReplyDeletegamma is also systemic velocity offset
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