Eric Agol

Modeling the sigmoid with spherical harmonics will no doubt require going to higher values of `l`. One issue that may arise if the transition is too sharp is a ringing...

Here's another reference that Keaton Bell mentioned to me today of an eclipsing white dwarf system which this may be interesting to apply this to: http://adsabs.harvard.edu/abs/2016ApJ...821L..32Z -Eric

Yeah, the one thing that worries me about this system is whether one could treat the stars as spheres, which is a requirement for starry.

And [Phoebe](http://phoebe-project.org).

Also tagging @tagordon who has been working on extending celerite to multiple dimensions, and has written a [version in Julia](https://github.com/tagordon/celerite2d.jl)

@yebai Thanks for the reply. I don't have time to help with this now, but @tagordon may be interested. The celerite formalism is fairly easy to implement, and even though...

@willtebbutt I just watched your Juliacon 2020 talk, and it seems apparent to me that there is probably some commonality between the SDE approach that you use, and our celerite...

@willtebbutt That looks like a great start! I can answer the "why" question: it is because each celerite kernel component can be written as the sums of complex exponentials. The...

Also, we've recently generalized the algorithm to a second (small) dimension which has a kernel structure which is an outer product of a vector with itself. This applies when there...

Thanks for the quick work on this, @hpparvi ! I reran the pip install ldtk command, and downloaded the new A2 notebook. Now I am getting an error in which...