Melanie edited Analysis Plan.tex  about 8 years ago

Commit id: 16772c62f222fb549869c36fcc631e0c4702b621

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\item new FERENGI    A consequence of the wide redshift range of the galaxies in GZH/GZH2 is that there is a non-uniform level of classification bias amongst the vote fractions. On average, the more distant galaxies have smaller, dimmer, and less-resolved cut-out images, making it more difficult to identify finer morphological features. In GZH this bias was corrected for the first question by quantifying the drop in the $p_{features}$ vote fraction as a function of surface brightness and redshift in a set of simulated images. The set was constructed using 288 SDSS galaxies which were artificially redshifted from $z=0.3$ to $z=1.0$ in increments of $\Delta z =0.1$. The simulated high redshift images, along with the original galaxy images, were classified in Galaxy Zoo using the same interface and decision tree as GZH. From these data, the change in the vote fraction $p_{features}$ as a function of redshift and surface brightness was measured, and from that a correction term was applied to the galaxies in the GZH sample.  \item in-browser fitting tool  \end{enumerate}  \item Description of final catalog, how to be used by public