STECKMAP: STEllar Content and Kinematics via Maximum A Posteriori likelihood

Details STECKMAP: STEllar Content and Kinematics via Maximum A Posteriori likelihood STECKMAP: STEllar Content and Kinematics via Maximum A Posteriori likelihood

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ascl.soft08018o&link_type=abstract

Astrophysics Source Code Library, record ascl:1108.018

Astronomy and Astrophysics

Astrophysics

Scientific paper

STECKMAP stands for STEllar Content and Kinematics via Maximum A Posteriori likelihood. It is a tool for interpreting galaxy spectra in terms of their stellar populations through the derivation of their star formation history, age-metallicity relation, kinematics and extinction. The observed spectrum is projected onto a temporal sequence of models of single stellar populations, so as to determine a linear combination of these models that best fits the observed spectrum. The weights of the various components of this linear combination indicate the stellar content of the population. This procedure is regularized using various penalizing functions. The principles of the method are detailed in Ocvirk et al. 2006.

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