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License: MIT License
time-domain variations of stellar spectra
License: MIT License
Spline will probably go crazy near the edges of the fitted region - how do we prevent that?
These can be constructed from the derivatives you have.
Then run it into scipy.optimize
BFGS and see if that crushes.
@dfm says we should
the code is currently brittle here.
Right now lots of things are hard-coded.
@dfm says we should
This will give us some idea whether we have a chance of getting anything.
Let's define
\xi \equiv \ln \sqrt{ \frac{v+c}{v-c} }
and fit for \xi
not \beta
. With this definition (or maybe with the +
and -
reversed),
x' = x - \xi
Scale parameters should absorb the varying flux levels so that a_ms just fit the shape of continuum & spectral features.
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