J/A+A/565/A64ivo://CDS.VizieR/J/A+A/565/A64doi:10.26093/cds/vizier.35650064CDSPodio L.Lefloch B.Ceccarelli C.Codella C.Bachiller R.2023-07-24T15:13:11Z2014-05-12T08:05:17ZCDS support team

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

cds-question@unistra.frmolecular-cloudsinterstellar-mediumspectroscopyIn this work, we perform a complete census of molecular ions with an abundance larger than ~10^-10^ in the protostellar shock L1157-B1. This allows us to study the ionization structure and chemistry of the shock. An unbiased high-sensitivity survey of L1157-B1 performed with the IRAM-30m and Herschel/HIFI as part of the CHESS and ASAI large programs allows searching for molecular ions emission. Then, by means of a radiative transfer code in the Large Velocity Gradient approximation, the gas physical conditions and fractional abundances of molecular ions are derived. The latter are compared with estimates of steady-state abundances in the cloud and their evolution in the shock calculated with the chemical model Astrochem.2014A&A...565A..64Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/565/A64CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/565/A64https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/565/A64http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/565/A64https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/565/A64https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/565/A64http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/565/A64GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/565/A64/table1*Properties of the detected lines from molecular ionsTransTransitionmeta.id;phys.atmol.transitionFileNameName of the spectrum file in subdirectory spmeta.id;meta.filecharn_Trans[ng *] Note on Trans (2)meta.notechare_Vpeak[0.1/1.5]? rms uncertainty on Vpeakkm/sstat.errorfloatnullableFWHM[1.8/6.9]? Full width at half maximumkm/sspect.line.widthfloatnullablee_FWHM[0.2/2]? rms uncertainty on FWHMkm/sstat.error;phys.angSizefloatnullableTpeak[8/1095]? Peak temperature (in main-beam temperature unit)mKobs.paramintnullablee_Tpeak[1/14]? rms uncertainty on TpeakmKstat.errorintnullablel_TmbdV[<= ] Limit flag on TmbdVmeta.code.errorTmbdV[0.03/7.4] Integrated intensityK.km/sphot.flux.densityfloate_TmbdV? rms uncertainty on TmbdVK.km/sstat.errorfloatnullablespShow the spectrummeta.ref.urlcharMolMolecule: HCO^+^, HCS^+^, HOCO^+^, H^13^CO^+^, N_2_H^+^, or SO^+^meta.noten_Mol[bcd] Note on the molecule (1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintnu0[85347/713343] Frequency of the transition (3)MHzem.freqdoubleE1[4/154] Upper energy levelKphys.energy;phys.atmol.levelintHPBW[7/40] Telescope Half Power Beam Widtharcsecinstr.tel;instr.beamintrms[1/35] rms noisemKstat.stdev;instr.det.noiseintVpeak? Peak velocitykm/sphys.veloc;stat.maxfloatnullable