This research has made use of the NASA/IPAC Extragalactic
Database (NED), which is operated by the Jet
Propulsion Laboratory, California Institute of Technology,
under contract with the National Aeronautics and
Space Administration. This research was supported in
part by the STFC through a consolidated grant to the
Institute of Astronomy, University of Cambridge. M. A.
de los Reyes also acknowledges the financial support of
the Winston Churchill Foundation and the NSF Graduate
Research Fellowship Program.
The authors would like to thank the anonymous referee
for their thoughtful and constructive comments, as
well as M. Irwin, A. Saintonge, L. Hunt, and J. Wang
for their useful comments and advice. Finally, we would
like to express our deep gratitude to the staff at academic
and telescope facilities, particularly those whose
communities are excluded from the academic system,
but whose labor maintains spaces for scientific inquiry.
Software: Matplotlib (Hunter 2007), Linmix (Meyers
2015), Astropy (Astropy Collaboration et al. 2013)