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ALFA: Automated Line Fitting Algorithm

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Ada Coda
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ALFA: Automated Line Fitting Algorithm

Postby Ada Coda » Sun Dec 27, 2015 7:38 am

ALFA: Automated Line Fitting Algorithm

Abstract: ALFA fits emission line spectra of arbitrary wavelength coverage and resolution, fully automatically. It uses a catalog of lines which may be present to construct synthetic spectra, the parameters of which are then optimized by means of a genetic algorithm. Uncertainties are estimated using the noise structure of the residuals. An emission line spectrum containing several hundred lines can be fitted in a few seconds using a single processor of a typical contemporary desktop or laptop PC. Data cubes in FITS format can be analysed using multiple processors, and an analysis of tens of thousands of deep spectra obtained with instruments such as MUSE will take a few hours.

Credit: Wesson, R.


Bibcode: 2015ascl.soft12005W

ID: ascl:1512.005
Last edited by Ada Coda on Sun May 06, 2018 7:37 am, edited 1 time in total.
Reason: Updated code entry.

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