J/ApJ/779/119ivo://CDS.VizieR/J/ApJ/779/119doi:10.26093/cds/vizier.17790119CDSCoudert L.H.Drouin B.J.Tercero B.Cernicharo J.Guillemin J.-C.,Motiyenko R.A.Margules L.2017-06-13T11:08:42Z2015-06-12T15:27:29ZCDS support team

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

cds-question@unistra.fratomic-physicsspectroscopyinterstellar-mediumradio-spectroscopyBased on new measurements carried out in the laboratory from 0.77 to 1.2THz and on a line-frequency analysis of these new data, along with previously published data, we build a line list for HCOOCH_2_D that leads to its first detection in the Orion KL nebula. The observed lines, both in space and in the laboratory, involve the cis D-in-plane and trans D-out-of-plane conformations of HCOOCH_2_D and the two tunneling states arising from the large-amplitude motion connecting the two trans configurations. The model used in the line position calculation accounts for both cis and trans conformations, as well as the large-amplitude motion.2013ApJ...779..119Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/779/119CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/572/A44 : Vibrationally excited vinyl cyanide in Orion-KL (Lopez+, 2014)J/ApJS/215/25 : Methyl formate (HCOOCH_3_) observations (Favre+, 2014)J/ApJ/777/120 : cm to submm spectra of H_2_C^=^CH-CH_2_NC (Haykal+, 2013)J/A+A/559/A51 : HC_3_N in Orion KL (Esplugues+, 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/548/A71 : Spectroscopy and ISM detection of formamide (Motiyenko+, 2012)J/A+A/543/A46 : Submillimeter spectrum of HCOOCD_2_H (Coudert+, 2012)J/A+A/538/A119 : Spectrum of ^18^O-methyl formate (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)J/A+A/493/565 : Deuterated and ^15^N ethyl cyanides (Margules+, 2009)J/A+A/466/255 : Isotopic ethyl cyanide (Demyk+, 2007)J/ApJS/156/127 : 350{mu}m molecular line survey of Orion KL (Comito+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/779/119https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/779/119http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/779/119https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/779/119https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/779/119http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/779/119GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/ApJ/779/119/table2Assignments, observed frequencies, and observed minus calculated differences in the microwave spectrum of HCOOCH_2_DrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ'[1/84] The J' rotational quantum levelphys.atmol.qn;phys.atmol.level;phys.mol.rotationintK'a[0/41] The K'_a_ rotational quantum levelphys.atmol.qn;phys.atmol.level;phys.mol.rotationintK'c[0/84] The K'_c_ rotational quantum levelphys.atmol.qn;phys.atmol.level;phys.mol.rotationintp'[+-] The upper tunneling sublevel (G1)phys.atmol.paritycharJ"[0/83] The J" rotational quantum levelmeta.noteintK"a[0/41] The K"_a_ rotational quantum levelmeta.noteintK"c[0/83] The K"_c_ rotational quantum levelmeta.noteintp"[+-] The lower tunneling sublevel (G1)phys.atmol.paritycharFreq[4232/1199060] Observed frequencyMHzem.freqdoublee_Freq[3/1500] Uncertainty in FreqkHzstat.errorintO-C[-724/678] Observed minus calculated residualkHzstat.fit.residual;stat.fit.omcintMult[DTQ] Multiplet code: D=Doublet, T=triplet, Q=Quadruplet, blank=singletmeta.notecharRefReference (This work or Margules et al. 2009JMoSp.254...55M)meta.ref;pos.framecharJ/ApJ/779/119/table7Linelist for the microwave spectrum of HCOOCH_2_DK'c[0/80] The K'_c_ rotational quantum levelphys.atmol.qn;phys.atmol.level;phys.mol.rotationintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreq[845.5/1199990] Line frequency (1)MHzem.freqdoublee_Freq[0.01/13] Error in Freq (1)MHzstat.errorfloatlogInt[-8.5/-3.4] Log line intensity at 300K (1)log(nm**2.MHz)spect.line.intensityfloatElo[0.8/1887] Lower level energy (1)cm**-1phys.energy;phys.atmol.leveldoublegup[5/161] Upper state degeneracy (1)phys.electron.degenintTAG[-61001/61001] Species tag or molecule identifier, 61001 or -61001 (1)phys.atmol.ionStageintJ'[2/80] The J' rotational quantum levelphys.atmol.qn;phys.atmol.level;phys.mol.rotationintK'a[0/48] The K'_a_ rotational quantum levelphys.atmol.qn;phys.atmol.level;phys.mol.rotationintp'[0-2] The upper tunneling sublevel (G1)phys.atmol.paritycharJ"[1/80] The J" rotational quantum levelmeta.noteintK"a[0/48] The K"_a_ rotational quantum levelmeta.noteintK"c[0/79] The K"_c_ rotational quantum levelmeta.noteintp"[0-2] The lower tunneling sublevel (G1)phys.atmol.paritycharJ/ApJ/779/119/table9*Detected lines of HCOOCH_2_D towared Orion-KLK'a[0/16] The K'_a_ rotational quantum levelphys.atmol.qn;phys.atmol.level;phys.mol.rotationintBlendBlended line identifier(s)meta.id;spect.linerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ'[6/26] The J' rotational quantum levelphys.atmol.qn;phys.atmol.level;phys.mol.rotationintK'c[0/26] The K'_c_ rotational quantum levelphys.atmol.qn;phys.atmol.level;phys.mol.rotationintp'[+-] The upper tunneling sublevel (G1)phys.atmol.paritycharJ"[5/25] The J" rotational quantum levelmeta.noteintK"a[0/16] The K"_a_ rotational quantum levelmeta.noteintK"c[0/25]? The K"_c_ rotational quantum levelmeta.noteintnullablep"[+-] The lower tunneling sublevel (G1)phys.atmol.paritycharFlab[87631/276034] Predicted frequency in the laboratoryMHzem.freqdoublee_Flab[0.002/0.02] Flab uncertaintyMHzstat.errorfloatEu[15.2/326] Upper level energyKphys.energy;phys.atmol.levelfloatSij[2.9/68.8] Line strengthD**2spect.line.intensityfloatFobs[87631/276034] Observed frequency assuming a V_LSR_ of 7.5km/sMHzem.freqdoublef_Fobs[d] d:line is blended with a previous linemeta.codecharVlsr[0.8/15.4] Observed radial velocitykm/sspect.dopplerVeloc;pos.lsrfloate_Vlsr[0.5/1.7] Vlsr uncertaintykm/sstat.error;phys.veloc;pos.lsrfloatTmb[0.02/0.8]? Upper limit of the main beam temperatureKphys.temperature;stat.maxfloatnullable