000002832 001__ 2832
000002832 005__ 20160701171711.0
000002832 037__ $$aASTROimport-989
000002832 100__ $$avan Hoof, P. A. M.
000002832 245__ $$aRecent development of the photoionization / PDR code Cloudy
000002832 260__ $$c2011
000002832 520__ $$aCloudy is a widely used open-source modeling tool for photoionized and PDR/XDR environments. It was the first code that could produce a unified and fully self-consistent model of both the ionized region and the PDR surrounding a central source. Such an environment can e.g. be found in massive star forming regions, in planetary nebulae or around AGN. The code is also capable of producing "classical" PDR models that do not include an ionized region. The emphasis of the code is on detailed and state-of-the-art treatment of micro-physical processes. Cloudy is continually being updated to improve this treatment and to add more and newer atomic and molecular data. On this poster we will discuss some of these developments, including the addition of the LAMDA, CDMS and JPL molecular line databases. These will allow us to make NLTE predictions for the molecular line emission, but the accuracy of those predictions will be limited by the quality (or even absence) of collision strength data. We will discuss the impact this has on the accuracy of the predicted spectra in typical ISM conditions. 
000002832 700__ $$a Porter, R. L.
000002832 700__ $$a Ferland, G. J.
000002832 773__ $$c366$$pThe Molecular Universe$$v280$$y2011
000002832 85642 $$ahttp://esoads.eso.org/abs/2011IAUS..280P.366V
000002832 905__ $$apublished in
000002832 980__ $$aNONREF