Mask

Masking the observed spectrum is supported in solve. The code will then allocate the corresponding pixel to different mask, and perform different manupulation to them.

The mask, sme.mask is an array with dtype=int with the same length with sme.wave. The types of mask are:

mask value	mask name	Description
0	bad pixel	Pixels excluded
1	line pixel	Pixels included in the parameter fitting
2	continuum pixel	Pixels included in continuum fitting
4	vrad pixel	Pixels included in radial velocity fitting

The masks are additive, i.e., you can set mask value to 5 for line and vrad pixel. Only the good pixels will be included in the fit, but the synthetic spectrum will still be calculated.

In default, mask is all 1.