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dc.creatorAbel, Martinen_US
dc.creatorFrommhold, Lotharen_US
dc.creatorLi, Xiaopingen_US
dc.creatorHunt, Katharine L. C.en_US
dc.date.accessioned2011-07-12T17:31:49Z
dc.date.available2011-07-12T17:31:49Z
dc.date.issued2011en_US
dc.identifier2011-FC-07en_US
dc.identifier.urihttp://hdl.handle.net/1811/49460
dc.descriptionAuthor Institution: Department of Physics, The University of Texas at Austin, Austin, TX 78712; Department of Chemistry, Michigan State University, East Lansing, MI 48824en_US
dc.description.abstractThe interaction-induced absorption by collisional pairs of H${_2}$ molecules is an important opacity source in the atmospheres of the outer planets and cool stars . The emission spectra of cool white dwarf stars differ significantly in the infrared from the expected blackbody spectra of their cores, which is largely due to absorption by collisional H${_2}$--H${_2}$, H${_2}$--He, and H${_2}$--H complexes in the stellar atmospheres. Using quantum-chemical methods we compute the atmospheric absorption from hundreds to thousands of kelvin. Laboratory measurements of interaction-induced absorption spectra by H${_2}$ pairs exist only at room temperature and below. We show that our results reproduce these measurements closely, so that our computational data permit reliable modeling of stellar atmosphere opacities even for the higher temperatures.en_US
dc.language.isoenen_US
dc.publisherOhio State Universityen_US
dc.titleCOLLISION-INDUCED INFRARED ABSORPTION BY COLLISIONAL COMPLEXES IN DENSE HYDROGEN-HELIUM GAS MIXTURES AT THOUSANDS OF KELVINen_US
dc.typeArticleen_US


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