I reviewed the literature on transient surveys and projects today. I learned that PTF, CRTS, and Palomar-QUEST (all projects at or near or involving Caltech, I note) all have a very simple design: Find epochs that are significantly out-of-line, follow up, and classify with follow-up observations. It is shoot first, ask questions later
, almost literally. This is good because (a) you get the low-hanging fruit very fast, and e (b) you aren't model-dependent in your selection. It means, however, that there are necessarily many un-mined and un-discovered events in their data streams, because model-fitting and model-selection methods (when the models are reasonable) are always more sensitive. It also means that Kepler is in many ways more analogous to the projects we are proposing with GALEX.
2011-05-18
transient literature
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imaging,
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