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dc.contributor.authorNiculas, Claudia Elvira
dc.date.accessioned2014-03-04T03:27:51Z
dc.date.available2014-03-04T03:27:51Z
dc.date.issued2008-08
dc.identifier.otherniculas_claudia_e_200808_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/niculas_claudia_e_200808_ms
dc.identifier.urihttp://hdl.handle.net/10724/25009
dc.description.abstractThe photodissociation of most molecules is typically obtained through pre-computed, exponentially-attenuated fitted photo rates, whose assumptions are likely to describe few astronomical environments. Furthermore, calculations of cross sections for the photodissociation of the isotopomer of molecular hydrogen, HD, are currently available only for the J = 0 levels of the ground electronic state. Explicit calculations of cross sections from all rovibrational states are necessary in order to compute HD photo-destruction rates for any environment and radiation field. To this end, we have directly calculated the partial cross sections for the Lyman and Werner transitions of HD from all 400 rovibrational levels of the ground electronic state into the continua of the upper electronic states. This required input of potential curves and dipole transition moments derived by standard ab initio techniques. The partial cross sections were calculated for a number of wavelengths ranging from 100 Å to the dissociation threshold from each rovibrational state.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectHD
dc.subjectrovibrational energies
dc.subjectphotodissociation
dc.subjectcross sections
dc.subjectLyman
dc.subjectWerner
dc.subjectpotential energy curves
dc.subjectdipole transition moments
dc.subjectphoto-destruction rates
dc.titleRovibrationally-resolved photodissociation of HD
dc.typeThesis
dc.description.degreeMS
dc.description.departmentPhysics and Astronomy
dc.description.majorPhysics
dc.description.advisorPhillip Stancil
dc.description.committeePhillip Stancil
dc.description.committeeSusanne Ullrich
dc.description.committeeRobin Shelton


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