J/ApJ/832/42ivo://CDS.VizieR/J/ApJ/832/42doi:10.26093/cds/vizier.18320042CDSAlonso E.R.Kolesnikova L.Tercero B.Cabezas C.Alonso J.L.,Cernicharo J.Guillemin J.-C.2017-06-08T12:06:09Z2017-03-16T14:19:14ZCDS support team

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

cds-question@unistra.frradio-spectroscopyatomic-physicsPrevious detections of methyl and ethyl formate make other small substituted formates potential candidates for observation in the interstellar medium. Among them, vinyl formate is one of the simplest unsaturated carboxylic ester. The aim of this work is to provide direct experimental frequencies of the ground vibrational state of vinyl formate in a large spectral range for astrophysical use. The room-temperature rotational spectrum of vinyl formate has been measured from 80 to 360GHz and analyzed in terms of Watson's semirigid rotor Hamiltonian. Two thousand six hundred transitions within J=3-88 and K_a_=0-28 were assigned to the most stable conformer of vinyl formate and a new set of spectroscopic constants was accurately determined. Spectral features of vinyl formate were then searched for in Orion KL, Sgr B2(N), B1-b, and TMC-1 molecular clouds. Upper limits to the column density of vinyl formate are provided.2016ApJ...832...42Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/832/42CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/587/L4 : Methyl isocyanate in Orion (Cernicharo+, 2016)J/A+A/577/A91 : Millimeter wave spectrum of vinyl acetate (Kolesnikova+, 2015)J/A+A/572/A44 : Vibrationally excited vinyl cyanide in Orion-KL (Lopez+, 2014)J/A+A/568/A58 : HCOO^13^CH_3_ rotational spectrum (Haykal+, 2014)J/A+A/559/A47 : Sgr B2(N) and Sgr B2(M) IRAM 30m line survey (Belloche+, 2013)J/ApJ/779/119 : HCOOCH_2_D detection in Orion KL (Coudert+, 2013)J/ApJ/770/L13 : Detection of CH_3_COOCH_3_ in Orion (Tercero+, 2013)J/ApJ/768/81 : Ethyl cyanide, CH_3_CH_2_CN, vibrational states (Daly+, 2013)J/A+A/538/A119 : Spectrum of HCO^18^OCH_3_ (Tercero+ 2012)J/A+A/532/A32 : HCOOCH3 map of Orion-KL (Favre+, 2011)J/ApJ/714/1120 : Rotational spectrum and DCOOCH_3_ in Orion (Margules+, 2010)J/A+A/500/1109 : Rotational spectrum of HCOO^13^CH_3_ (Carvajal+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/832/42https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/832/42http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/832/42https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/832/42https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/832/42http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/832/42GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/ApJ/832/42/table2List of the assigned transitions for the ground state rotational spectrum of vinyl formaterecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ0[4/88] The J' quantum numberphys.atmol.qnintKa0[0/28] The K_a_' quantum numberphys.atmol.qnintKc0[0/82] The K_c_' quantum numberphys.atmol.qnintJ1[4/88] The J" quantum numberinstr.det.qeintKa1[0/28] The K_a_" quantum numberphys.atmol.qnintKc1[0/83] The K_c_" quantum numberphys.atmol.qnintnu[80199/359818] Observed frequency (1)MHzem.freqdoublee_nu[50/250] Uncertainty in nukHzstat.errorintO-C[-0.11/0.1] Observed minus calculated frequencyMHzstat.fit.residualfloat