J/ApJS/197/25ivo://CDS.VizieR/J/ApJS/197/25doi:10.26093/cds/vizier.21970025CDSFoster J.B.Jackson J.M.Barnes P.J.Barris E.Brooks K.,Cunningham M.Finn S.C.Fuller G.A.Longmore S.N.Mascoop J.L.,Peretto N.Rathborne J.Sanhueza P.Schuller F.Wyrowski F.2017-06-20T13:17:35Z2012-02-06T15:49:39ZCDS support team

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

cds-question@unistra.frinterstellar-mediumradio-astronomysurveysmolecular-cloudsWe describe a pilot survey conducted with the Mopra 22m radio telescope in preparation for the Millimeter Astronomy Legacy Team Survey at 90GHz (MALT90). We identified 182 candidate dense molecular clumps using six different selection criteria and mapped each source simultaneously in 16 different lines near 90GHz. We present a summary of the data and describe how the results of the pilot survey shaped the design of the larger MALT90 survey. We motivate our selection of target sources for the main survey based on the pilot detection rates and demonstrate the value of mapping in multiple lines simultaneously at high spectral resolution.2011ApJS..197...25Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/197/25CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/293 : GLIMPSE Source Catalog (I + II + 3D) (IPAC 2008)J/ApJS/196/12 : First results from Mopra HCO^+^ maps (Barnes+, 2011)J/ApJ/707/283 : Ionized gas toward molecular clumps (Johnston+, 2009)J/ApJS/182/131 : Molecular clouds and clumps in the GRS (Rathborne+, 2009)J/A+A/447/221 : Dust continuum emission from IRAS sources (Beltran+, 2006)http://malt90.bu.edu/ : MALT90 home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/197/25https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/197/25http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/197/25https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/197/25https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/197/25http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/197/25GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/197/25/malt90 (MALT90 pilot sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/197/25/malt90?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/197/25/malt90?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/197/25/malt90?GETtext/xml+votable180.050000true131.4000125-43.850552780.0055555555555555565/10444 10453 10543 6/38016 38024 39248 39250 41598 41599 41653 41654 41655 41657 41658 41659 41660 41661 41673 41674 41675 41676 41677 41680 41681 41682 41684 41696 41697 41759 41763 41767 41768 41769 41770 41772 41780 41782 41799 41802 41803 41804 41806 41810 41811 41816 41817 41820 41825 42155 42159 42168 42170 42171 42207 42210 42211 42214 42215 42216 42224 42226 42228 42229 42230 42389 42392 42407 42436 42437 42449 42456 42460 42496 42497 42500 42501 42502 42512 43013 43021 43024https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/197/25?format=asciiRadiodefaultJ/ApJS/197/25/malt90MALT90 pilot sourcese_I(HNC)? Uncertainty in I(HNC)K.km/sstat.errorfloatnullablee_I(HCO+)? Uncertainty in I(HCO+)K.km/sstat.errorfloatnullablel_I(HCN)Limit flag on I(HCN)meta.code.errorcharl_I(HCO+)Limit flag on I(HCO+)meta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[FJB2011]Source name (GLLL.lll+BB.bbb)meta.id;meta.maincharprimaryRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainCatCatalogs (1)meta.id;meta.datasetcharVel1? Central source velocity (2)km/sphys.veloc;em.wl.centralfloatnullableVel2? Weaker central source velocity (3)km/sphys.veloc;em.wl.centralfloatnullableTrmsNoise per channel in the spectrum (4)Kstat.snr;instr.det.noisefloatIRLink to infra-red source in GLIMPSE or IRAS within 15"meta.ref.urlintnullablel_I(N2H+)Limit flag on IN2H+meta.code.errorcharI(N2H+)? Maximum integrated N_2_H^+^ intensityK.km/sphot.flux.density;em.radio;stat.maxfloatnullablef_I(N2H+)[b] Flag on I(N2H+) (2)meta.codechare_I(N2H+)? Uncertainty in I(N2H+)K.km/sstat.errorfloatnullablel_I(HNC)Limit flag on I(HNC)meta.code.errorcharI(HNC)Maximum integrated HNC intensityK.km/sphot.flux.density;em.radio;stat.maxfloatI(HCO+)Maximum integrated HCO^+^ intensityK.km/sphot.flux.density;em.radio;stat.maxfloatI(HCN)Maximum integrated HCN intensityK.km/sphot.flux.density;em.radio;stat.maxfloate_I(HCN)? Uncertainty in I(HCN)K.km/sstat.errorfloatnullablex(N2H+)? N_2_H^+^ offset from map center (3)pixpos;arith.diffintnullabley(N2H+)? N_2_H^+^ offset from map center (3)pixpos;arith.diffintnullablex(HNC)? HNC offset from map center (3)pixpos;arith.diffintnullabley(HNC)? HNC offset from map center (3)pixpos;arith.diffintnullablex(HCO+)? HCO^+^ offset from map center (3)pixpos;arith.diffintnullabley(HCO+)? HCO^+^ offset from map center (3)pixpos;arith.diffintnullablex(HCN)? HCN offset from map center (3)pixpos;arith.diffintnullabley(HCN)? HCN offset from map center (3)pixpos;arith.diffintnullableW(HNC)? HNC line Full-Width at Half-Maximumkm/sspect.line.widthfloatnullablee_W(HNC)? Uncertainty in W(HNC)km/sstat.errorfloatnullableW(HCO+)? HCO^+^ line Full-Width at Half-Maximumkm/sspect.line.widthfloatnullablee_W(HCO+)? Uncertainty in W(HCO+)km/sstat.errorfloatnullableJ/ApJS/197/25/table5*Robust (5{sigma}) detections of linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[FJB2011]Source name (GLLL.lll+BB.bbb)meta.id;meta.maincharN2H+[0/1] Robust N_2_H^+^ detection code (1)instr.sensitivityint13CS[0/1] Robust ^13^CS detection code (1)instr.sensitivityintHNC[0/1] Robust HNC detection code (1)instr.sensitivityintHCO+[0/1] Robust HCO^+^ detection code (1)instr.sensitivityintHCN[0/1] Robust HCN detection code (1)instr.sensitivityintC2H[0/1] Robust C_2_H detection code (1)instr.sensitivityintSiO[0/1] Robust SiO detection code (1)instr.sensitivityintH13CO+[0/1] Robust H^13^CO^+^ detection code (1)instr.sensitivityintH13CN[0/1] Robust H^13^CN detection code (1)instr.sensitivityint