J/AZh/84/839ivo://CDS.VizieR/J/AZh/84/839CDSLarionov G.M.Val'tts I.E.2018-01-04T08:21:28Z2009-05-08T19:38:49ZCDS support team

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

cds-question@unistra.frmolecular-cloudsastrophysical-masersradio-astronomyradial-velocityThe distribution of the radial velocities of class I methanol masers relative to the velocities of their parent molecular clouds is analyzed. This analysis is based on catalog data for methanol masers detected up to the present time in both the northern and southern hemispheres, together with catalog data for the CS(2-1) line, which traces dense, quiescent gas. Results for a large sample of sources show that, in contrast to class II methanol masers, which undergo Keplerian motions in protoplanetary disks, class I methanol masers retain their velocities in the local system of rest of the surrounding medium, and do not participate in the ejection of matter in bipolar out flows. They can be adequately described using a model in which matter ejected from active parts of the associated star-forming regions flows around isolated maser condensations. This compresses the maser clumps, enhancing the concentration of methanol and facilitating collisional pumping of the masers.2007AZh....84..839Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AZh/84/839CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AZh/71/37 : Thermal Methanol from 33 Clouds at 48 GHz (Slysh+, 1994)J/A+AS/124/85 : OH emission from IRAS sources (Slysh+ 1997)J/AZh/72/22 : A 95 GHz Survey of Methanol Masers (Valtts+, 1995)J/A+AS/134/115 : Medicina 6.7GHz methanol masers survey (Slysh+ 1999)J/AZh/79/328 : Methanol maser condensations in W 48 (Val'tts+, 2002)J/AZh/84/579 : Catalog of Class I methanol masers (Val'tts+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AZh/84/839https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AZh/84/839http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AZh/84/839https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AZh/84/839https://vizier.iucaa.in/viz-bin/votable?-source=J/AZh/84/839http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AZh/84/839GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AZh/84/839/table (Parameters of methanol maser lines at 44GHz and CS(2-1) thermal lines observed toward class I methanol masers)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AZh/84/839/table?https://vizier.iucaa.in/viz-bin/conesearch/J/AZh/84/839/table?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AZh/84/839/table?GETtext/xml+votable180.050000true36.76952961.8737590.0055555555555555566/3649 14317 14594 14622 14655 14704 15479 15759 23637 23969 24554 28808 28829 28912 28919 29090 29091 29094 29097 29101 29103 29113 29160 29461 29510 29532 29533 30218 30259 30262 30269 30318 30319 30618 30644 30694 37846 37850 41655 41778 41780 41804 41813 41820 42159 42172 42207 42211 42224 42379 42381 42387 42390 42391 42396 42417 42449 42451 42455 42456 42457 42498 43013 43021https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AZh/84/839?format=asciiOpticalRadiodefaultJ/AZh/84/839/tableParameters of methanol maser lines at 44GHz and CS(2-1) thermal lines observed toward class I methanol masersn_TA[d] Note (2)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAB1950Right ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainR[*] Note on NGC 6334 F position (1)meta.notecharVlsr1? CH_3_OH(7_0_-6_1_A^+^) LSR velocitykm/sphys.veloc;pos.lsrfloatnullableFlux? CH_3_OH(7_0_-6_1_A^+^) fluxJyphot.fluxfloatnullabler_Flux? Reference for CH_3_OH data (3)meta.refintnullableVlsr2? CS(2-1) LSR velocitykm/sphys.veloc;pos.lsrfloatnullableTA? CS(2-1) antenne temperatureKphys.temperaturefloatnullabler_TA? Reference for CS(2-1) data (3)meta.ref;pos.frameintnullable_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.decnullableindexedNameSource namemeta.id;meta.maincharSimbadNameSimbad column added by the CDSmeta.idchar