2011-12-13

finding absorption features by machine

Guangtun Zhu (JHU) stopped by this week (welcome back!) and came for a chat about modeling spectra, in particular quasar spectra that might have absorption-line systems redward of Lyman alpha. Most catalogs of absorption systems involve significant hand-vetting; we discussed methods to ameliorate or eliminate the by-hand aspects of the problem. Guess what I advocated? Justified probabilistic modeling of the spectra, plus some sensible priors.

1 comment:

  1. As someone part of pa program that has vetted over 15000 absorbers chosen by code, I emplore you to figure out this problem.....After we publish our paper ;)

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