J/ApJS/234/6ivo://CDS.VizieR/J/ApJS/234/6doi:10.26093/cds/vizier.22340006CDSTurner A.M.Abplanalp M.J.Blair T.J.Dayuha R.Kaiser R.I.2018-05-28T08:35:51Z2018-04-17T12:28:35ZCDS support team

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

cds-question@unistra.frmolecular-physicsinfrared-astronomyspectroscopyThe only known phosphorus-containing organic compounds of extraterrestrial origin, alkylphosphonic acids, were discovered in the Murchison meteorite and have accelerated the hypothesis that reduced oxidation states of phosphorus were delivered to early Earth and served as a prebiotic source of phosphorus. While previous studies looking into the formation of these alkylphosphonic acids have focused on the iron-nickel phosphide mineral schreibersite and phosphorous acid as a source of phosphorus, this work utilizes phosphine (PH3), which has been discovered in the circumstellar envelope of IRC +10216, in the atmosphere of Jupiter and Saturn, and believed to be the phosphorus carrier in comet 67P/Churyumov-Gerasimenko. Phosphine ices prepared with interstellar molecules such as carbon dioxide, water, and methane were subjected to electron irradiation, which simulates the secondary electrons produced from galactic cosmic rays penetrating the ice, and probed using infrared spectroscopy to understand the possible formation of alkylphosphonic acids and their precursors on interstellar icy grains that could become incorporated into meteorites such as Murchison. We present the first study and results on the possible synthesis of alkylphosphonic acids produced from phosphine-mixed ices under interstellar conditions. All functional groups of alkylphosphonic acids were detected through infrared spectroscopically, suggesting that this class of molecules can be formed in interstellar ices.2018ApJS..234....6Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/234/6CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/662/750 : {nu}9 fundamental band of ethane (Vander+, 2007)J/ApJ/757/46 : Hot methane (CH4) line list (Hargreaves+, 2012)J/ApJ/789/2 : Methane partition function (Rey+, 2014)J/ApJ/796/36 : PH_2_CN/CH_3_PH_2_ rotational transition freq. (Halfen+, 2014)J/A+A/570/A12 : Spectroscopy of 1,2-propanediol (Bossa+, 2014)J/MNRAS/440/1649 : ExoMol line lists for CH4 (Yurchenko+, 2014)J/ApJ/813/12 : Empirical methane (CH_4_) line list (Hargreaves+, 2015)J/A+A/605/A95 : CH4 & hot methane continuum hybrid line list (Yurchenko+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/234/6https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/234/6http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/234/6https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/234/6https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/234/6http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/234/6GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfrareddefaultJ/ApJS/234/6/fig2The infrared absorbance spectra of methane, ethane, propane and butane taken at 10KrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWaveNum[503.3/3999.8] Wavenumbercm**-1em.freqdoubleAbs1[-0.003/0.7] Methane (CH_4_) infrared spectra, absorbance at 10Kphys.absorptiondoubleAbs2[-0.0009/0.6] Ethane (C_2_H_6_) infrared spectra, absorbance at 10Kphys.absorptiondoubleAbs3[-0.002/0.5] Propane (C_3_H_8_) infrared spectra, absorbance at 10Kphys.absorptiondoubleAbs4[-0.002/0.3] Butane (C_4_H_10_) infrared spectra, absorbance at 10Kphys.absorptiondouble