computeccf

raccoon.ccf.computeccf(w, f, c, wm, fm, rv, ron=None, forig=None)

Wrapper for the fortran functions ccflibfort.computeccf, ccflibfort.computeccferr, computeccferrfluxorig.

Compute the CCF error only if ron is not None (default). Not computing the error makes the execution slightly faster.

Parameters:

w, f1d array like, same shape: Spectrum (1d, i.e. for 1 order). Wavelength units must be consistent with mask wavelength wm.
c1d array like, same shape as w and f: Blaze function, to take into account the observed flux. If no blaze, input an array with ones, e.g. c = np.ones_like(w).
wm, fm1d array like, same shape: Mask position (wm) and weight (fm).
rv1d array-like: RV array for which the mask is Doppler-shifted.
ronfloat: Read out noise. If None (default), no CCF error is computed.
forig1d array: Original spectrum flux (before correcting for order ratios).

Returns: