J/A+A/327/755ivo://CDS.VizieR/J/A+A/327/755doi:10.26093/cds/vizier.33270755CDSPalla F.Codella C.Valdettaro R.Baffa C.2013-02-27T06:33:59Z1997-12-09T18:07:15ZCDS support team

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

cds-question@unistra.frinfrared-sourcesastrophysical-masersradio-astronomyA high-sensitivity search for water maser emission at 22.2 GHz has been performed on a sample of 91 IRAS point sources at high-latitudes. The aim of the survey is to verify if these clouds are capable of star formation as indicated by the presence of water masers. The sample is based on the recent work of Magnani et al. (1995ApJS...96..159M) who have identified 192 infrared objects from the IRAS Faint Source Survey possibly associated with translucent clouds at galactic latitudes |b|>=30{deg}. These IRAS sources have far-infrared colours typical of young stellar objects and pre-main-sequence stars and thus provide a starting list for further studies about their actual nature. H_2_O maser emission is a good diagnostic of the presence of dense gas and of recent star formation. We did not find water maser emission at a level of 0.2-0.5Jy (3{sigma}) in any of the 91 objects. The negative result indicates that these high-latitude sources do not represent potential sites of star formation, consistent with the fact that most high-latitude molecular clouds do not appear gravitationally bound.1997A&A...327..755Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/327/755CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/277/453 : OH maser survey of cool IRAS sources (David+ 1993)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/327/755https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/327/755http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/327/755https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/327/755https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/327/755http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/327/755GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/327/755/table1 (Sources with IRAS emission at all four bands (Sample A))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/327/755/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/327/755/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/327/755/table1?GETtext/xml+votable180.050000true1.359113-8.1649530.005555555555555556Cone search capability for table J/A+A/327/755/table2 (Sources with IRAS emission in the 12, 25, 60{mu}m (Sample B))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/327/755/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/327/755/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/327/755/table2?GETtext/xml+votable180.050000true4.904223-4.6685810.0055555555555555566/302 536 599 769-770 904 2569 5033 5962 6005 6078 6477 6487 7222 7640 7644 7979 8051 8153 8212 8479 8680 9037 9238 9248 9253 9256 9299 9320 9328 9507 9550 9627 9644 9691 9726 10068 10100 10182 10205 10231 10236-10237 11356 11533 11582 11615 11725 11774 12120 12192 12230 17348 17365 17461 17582 17671 17781 18387 18421 18448 18741 18986 19096 19127 20013 21142 21168 22555 22558-22559 22585 22651 22711 25874 26624 27229 31398 31530 32447 36212 36312 36319 36338 36468 36559 36668 44727 44784 44899 48944https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/327/755?format=asciiInfraredRadiodefaultJ/A+A/327/755/table1Sources with IRAS emission at all four bands (Sample A)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource Namemeta.id;meta.maincharIRASIRAS Source Namemeta.id;meta.maincharRA1950Right Ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainrmsNoise of the spectrumJystat.snr;phot.flux.densityfloat_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/A+A/327/755/table2Sources with IRAS emission in the 12, 25, 60{mu}m (Sample B)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource Namemeta.id;meta.maincharIRASIRAS Source Namemeta.id;meta.maincharRA1950Right Ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainrmsNoise of the spectrumJystat.snr;phot.flux.densityfloat_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed