J/A+A/642/A206ivo://CDS.VizieR/J/A+A/642/A206doi:10.26093/cds/vizier.36420206CDSMargules L.McGuirre B.A.Evans C.J.Motiyenko R.A.Remijan A.,Guillemin J.C.Wong A.McNaughton D.2021-01-12T07:03:56Z2020-10-20T10:46:36ZCDS support team

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

cds-question@unistra.frinterstellar-mediummolecular-cloudsradio-astronomyspectroscopyThe majority of sulfur-containing molecules detected in the interstellar medium (ISM) are analogs of oxygen-containing compounds. Propynal was detected in the ISM in 1988, hence propynethial, its sulfur derivative, is a good target for an ISM search. Our aim is to measure the rotational spectrum of propynethial and use those measurements to search for this species in the ISM. To date, measurements of the rotational spectra of propynethial have been limited to a small number or transitions below 52GHz. The extrapolation of the prediction to lines in the milimeter-wave domain is inaccurate and does not provide data to permit an unambiguous detection. The rotational spectrum was re-investigated up to 630GHz. Using the new prediction lines of propynethial, as well as the related propynal, a variety of astronomical sources were searched, including star-forming regions and dark clouds. A total of 3288 transitions were newly assigned and fit together with those from previous studies, reaching quantum numbers up to J=107 and K_a_=24. Watson's symmetric top Hamiltonian in the I^r^ representation was used for the analysis, because the molecule is very close to the prolate limit. The search for propynethial resulted in a non-detection; upper limits to the column density were derived in each source.2020A&A...642A.206Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/642/A206CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/493/565 : Deuterated and ^15^N ethyl cyanides (Margules+, 2009)J/A+A/500/1109 : Rotational spectrum of HCOO^13^CH_3_ (Carvajal+, 2009)J/A+A/538/A51 : Rotational spectrum of CH_3_CH(NH_2_)CN (Mollendal+, 2012)J/A+A/538/A119 : Spectrum of ^18^O-methyl formate HCO^18^OCH_3_ (Tercero+ 2012)J/A+A/540/A51 : Submm spectrum of deuterated glycolaldehydes (Bouchez+, 2012)J/A+A/543/A46 : Submillimeter spectrum of HCOOCD_2_H (Coudert+, 2012)J/A+A/543/A135 : New analysis of ^13^C-CH_3_CH_2_CN up to 1THz (Richard+, 2012)J/A+A/544/A82 : Rotational spectroscopy of diisocyanomethane (Motiyenko+, 2012J/A+A/548/A71 : Spectroscopy and ISM detection of formamide (Motiyenko+, 2012)J/A+A/549/A96 : mm and sub-mm spectra of 13C-glycolaldehydes (Haykal+, 2013)J/A+A/552/A117 : Mono-deuterated dimethyl ether (Richard+, 2013)J/A+A/553/A84 : (Sub)mm spectrum of deuterated methyl cyanides (Nguyen+, 2013)J/A+A/559/A44 : Rotational spectrum of MAAN (CH_2_NCH_2_CN) (Motiyenko+, 2013)J/A+A/563/A137 : THz spectrum of methylamine (Motiyenko+, 2014)J/A+A/568/A58 : HCOO^13^CH_3_ rotational spectrum (Haykal+, 2014)J/A+A/579/A46 : Mono^13^C acetaldehydes mm/submm wave spectra (Margules+ 2015)J/A+A/591/A110 : ^15^NH_2_ amidogen radical rotational spectrumJ/A+A/601/A50 : Sub-millimeter spectra of 2-hydroxyacetonitrileJ/A+A/610/A44 : Ethyl isocyanide submillimeter wave spectroscopyJ/A+A/619/A92 : Laboratory analysis of methylketene (Bermuez+, 2018)J/A+A/623/A162 : Spectroscopy of CH2(CN)2 and CNCH2CN (Motiyenko+, 2019)J/A+A/624/A70 : Acetaldehyde CH_2_DCOH and CH_3_COD (Coudert+, 2019)J/A+A/638/A3 : Cyanoketene (NC-CH=C=O) mm wave spectroscopy (Margules+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/642/A206https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/642/A206http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/642/A206https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/642/A206https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/642/A206http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/642/A206GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/A+A/642/A206/s1Measured frequencies and residuals from the global fit of the data for propynethialNrLine numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ"Upper J quantum numberinstr.det.qe;stat.maxintKa"Upper Ka quantum numberphys.mol.qn;stat.maxintKc"Upper Kc quantum numberphys.mol.qn;stat.maxintJ'Lower J quantum numberinstr.det.qe;stat.minintKa'Lower Ka quantum numberphys.mol.qn;stat.minintKc'Lower Kc quantum numberphys.mol.qn;stat.minintFreqObserved transition frequencyMHzem.freqdoubleO-CObserved - Calculated frequenciesMHzstat.fit.residualfloatuncExperimental uncertaintyMHzstat.errordouble