J/A+A/402/1ivo://CDS.VizieR/J/A+A/402/1doi:10.26093/cds/vizier.34020001CDSChandra S.2014-02-12T07:36:28Z2003-05-20T21:52:29ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fratomic-physicsCyclopropenylidene C_3_H_2_ and ethylene oxide C_2_H_4_O molecules are of astronomical importance as their observed lines, distributed throughout the observable microwave region, have a number of pairs having nearly equal frequencies, but different excitation energies and/or belonging to two different species of the molecule. Hence, these molecules may play important role in detecting physical conditions in cosmic objects. Therefore, in order to calculate intensities of the lines, we have investigated transfer of radiation through a cosmic object containing the molecule at a kinetic temperature of 10K. Our results show that some lines of the molecule may be found in absorption against the cosmic 2.7K background.2003A&A...402....1Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/402/1CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/376/333 : Einstein A-coefficients for C_3_H_4_ (Sharma+, 2001)J/A+A/376/356 : Diatomic molecules collisional rates (Chandra+, 2001)J/A+AS/114/175 : Einstein A-coefficients in CS transitions (Chandra+ 1995)J/A+AS/117/557 : Einstein coefficients for CO transitions (Chandra+ 1996)J/A+AS/131/137 : Einstein A-Coefficients in SiC2 transitions (Chandra+ 1998)J/A+AS/142/113 : 3H2 and SiC2 collisional rates (Chandra+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/402/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/402/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/402/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/402/1https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/402/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/402/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/402/1/table1aA-coefficients for ortho-C3H2TransTransitionmeta.id;phys.atmol.transitioncharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAEinstein A coefficients**-1phys.atmol.transProbdoubleJ/A+A/402/1/table1bA-coefficients for para-C3H2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTransTransitionmeta.id;phys.atmol.transitioncharAEinstein A coefficients**-1phys.atmol.transProbdoubleJ/A+A/402/1/table1cA-coefficients for ortho-C2H4OTransTransitionmeta.id;phys.atmol.transitioncharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAEinstein A coefficients**-1phys.atmol.transProbdoubleJ/A+A/402/1/table1dA-coefficients for para-C2H4OrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTransTransitionmeta.id;phys.atmol.transitioncharAEinstein A coefficients**-1phys.atmol.transProbdouble