| |
 |
| Paper: |
Using Boundary Fits to Determine Spectra Pseudo-Continua |
| Volume: |
442, Astronomical Data Analysis Software and Systems XX (ADASSXX) |
| Page: |
147 |
| Authors: |
Cardiel, N. |
| Abstract: |
The appropriate determination of pseudo-continuum spectra is one of the critical
steps when trying to retrieve scientifically relevant information from
spectroscopic data. Typically one derives the pseudo-continua by fitting a
low-order polynomial or splines to the data, excluding regions with conspicuous
spectroscopic features. The problem with this approach is that, no matter how
carefully one chooses the data to be fitted, those fits are always passing
through the spectral data points, whereas in principle the goal is to obtain a
representation of a pseudo-continuum that must be placed on top of the spectrum.
The use of boundary fits constitutes an excellent approach for this particular
problem. |
|
|
|
|
|
