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dc.creatorLacy, John H.en_US
dc.date.accessioned2016-04-28T19:36:52Z
dc.date.available2016-04-28T19:36:52Z
dc.date.issued2013-03en
dc.identifierdoi:10.15781/T26R6S
dc.identifier.citationLacy, John H. "Interpretation of Infrared Vibration-rotation Spectra of Interstellar and Circumstellar Molecules." The Astrophysical Journal, Vol. 765, No. 2 (Mar., 2013): 130.en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/2152/34910
dc.description.abstractInfrared vibration-rotation lines can be valuable probes of interstellar and circumstellar molecules, especially symmetric molecules, which have no pure rotational transitions. But most such observations have been interpreted with an isothermal absorbing slab model, which leaves out important radiative transfer and molecular excitation effects. A more realistic non-LTE and non-isothermal radiative transfer model has been constructed. The results of this model are in much better agreement with the observations, including cases where lines in one branch of a vibration-rotation band are in absorption and another in emission. In general, conclusions based on the isothermal absorbing slab model can be very misleading, but the assumption of LTE may not lead to such large errors, particularly if the radiation field temperature is close to the gas temperature.en_US
dc.description.sponsorshipen_US
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.subjectism: moleculesen_US
dc.subjectline: formationen_US
dc.subjectradiative transferen_US
dc.subjectspectroscopyen_US
dc.subjectc2h2en_US
dc.subjecthcnen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleInterpretation Of Infrared Vibration-Rotation Spectra Of Interstellar And Circumstellar Moleculesen_US
dc.typeArticleen_US
dc.description.departmentAstronomyen_US
dc.identifier.Filename2013_03_infraredvibration.pdfen_US
dc.rights.restrictionOpenen_US
dc.identifier.doi10.1088/0004-637x/765/2/130en_US
dc.contributor.utaustinauthorLacy, John H.en_US
dc.relation.ispartofserialAstrophysical Journalen_US


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