J/A+A/613/A42ivo://CDS.VizieR/J/A+A/613/A42doi:10.26093/cds/vizier.36130042CDSRiquelme D.Amo-Baladron A.Martin-Pintado J.Mauersberger R.,Martin S.Burton M.Cunningham M.Jones P.Menten K.M.Bronfman L.,Guesten R.2018-06-19T08:19:53Z2018-05-30T14:48:27ZCDS support team

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

cds-question@unistra.frmilky-way-galaxymolecular-cloudsWe aim to reveal the morphology, chemical composition, kinematics and to establish the main processes prevalent in the gas at the footpoints of the giant molecular loops (GMLs) in the Galactic center region. Using the 22-m Mopra telescope, we mapped the M-3.8+0.9 molecular cloud, placed at the footpoints of a giant molecular loop, in 3-mm range molecular lines. To derive the molecular hydrogen column density, we also observed the ^13^CO (2-1) line at 1mm using the 12-m APEX telescope. From the 3 mm observations 12 molecular species were detected, namely HCO+, HCN, H^13^CN, HNC, SiO, CS, CH_3_OH, N_2_H^+^, SO, HNCO, OCS, and HC_3_N. Maps revealing the morphology and kinematics of the M-3.8+0.9 molecular cloud in different molecules are presented. We identify six main molecular complexes. We derive fractional abundances in 11 selected positions of the different molecules assuming local thermodynamical equilibrium. Most of the fractional abundances derived for the M-3.8+0.9 molecular cloud are very similar over the whole cloud. However, the fractional abundances of some molecules show significant difference with respect to those measured in the central molecular zone (CMZ). The abundances of the shock tracer SiO are very similar between the GMLs and the CMZ. The methanol emission is the most abundant species in the GMLs. This indicates that the gas is likely affected by moderate ~30km/s or even high velocity (50km/s) shocks, consistent with the line profile observed toward one of the studied position. The origin of the shocks is likely related to the flow of the gas throughout the GMLs towards the footpoints.2018A&A...613A..42Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/613/A42CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/613/A42https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/613/A42http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/613/A42https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/613/A42https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/613/A42http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/613/A42GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/613/A42/list (List of the available data cubes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/613/A42/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/613/A42/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/613/A42/list?GETtext/xml+votable180.050000true263.22297-31.722390.0055555555555555566/28811https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/613/A42?format=asciidefaultJ/A+A/613/A42/listList of the available data cubesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the sourcemeta.id;meta.maincharGLongGalactic Longitudedegpos.galactic.lonGLatGalactic Latitudedegpos.galactic.latRestFreqRest FrequencyGHzem.freqfloatNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintNzNumber of slicesmeta.numberintScaleIntensity ScaleKmeta.codecharTitleTitle of the FITS filemeta.title;meta.fitsFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitschar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexed