National Radio
Astronomy Observatory

6.13.3 Pixel-by-pixel fits

As mentioned above, specfit can also fit spectral cubes on a pixel by pixel basis. In this case, one can choose to write none, any or all of the solution and error images for Gaussian/Lorentzian fits via the parameters amp, amperr, center, centererr, fwhm, and fwhmerr. The specified parameter value will by appended by ”_n” where n is the Gaussian/Lorentzian component number. Writing analogous images for polynomial coefficients is not yet supported although polynomial fits when multifit=True is supported. Best fit coefficients are written to the logger. Pixels for which fits were not attempted or did not converge will be masked as bad.

More information about CASA may be found at the CASA web page

Copyright © 2010 Associated Universities Inc., Washington, D.C.

This code is available under the terms of the GNU General Public Lincense