J/A+AS/127/185ivo://CDS.VizieR/J/A+AS/127/185CDSNyman L.-A.Hall P.J.Olofsson H.2013-03-06T06:37:19Z1998-03-05T22:09:24ZCDS support team

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

cds-question@unistra.frastrophysical-masersradio-astronomyplanetary-nebulaeWe present a search for SiO masers towards a sample of 126 objects including OH/IR stars, proto-planetary and planetary nebulae. All objects are classified as oxygen-rich, and most of them are associated with OH or H_2_O masers. SiO masers were found only in variable objects like the OH/IR stars and a few objects classified as proto-planetary nebulae, but with variable central stars that may be part of binary systems. In one object, OH 15.7+0.8, which appears to be varying irregularly and most likely recently left the AGB, an SiO maser was tentatively detected. Thus, we conclude that variability and SiO maser emission are closely linked, and that SiO masers disappear very soon after a star has reached the end of the AGB, when pulsation and mass loss cease.1998A&AS..127..185Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/127/185CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/127/185https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/127/185http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/127/185https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/127/185https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/127/185http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/127/185GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/127/185/table1 (Source parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/127/185/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/127/185/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/127/185/table1?GETtext/xml+votable180.050000true23.46079862.4464030.0055555555555555566/1054 3285 3491 3640 4361 12974 13050 13210 14248 14314 14336 14349 14371 14399 14418 14440 14614 14632 14685 14732 15435 15640 15663 15699 15741 21523 21549 22051 22069 22085 25864 28676 28731 28733 28765 28767 28804 28807 28812 28819 28825-28826 28835 28846 28849 28852-28854 28856-28857 28868 28899-28900 28927 28952 29072 29094 29097 29102-29104 29113 29161 29184 29189 29200 29278 29460 29473 29513 29528 29533 29562 29662 30220 30243-30244 30260 30263 30269 30297 30319 30331 30406 30423 30602 30605 30614-30615 30618 30621 30664 32071 32117 32181 32543 32562 37006 37343 37617 37904 37965 39793 40246 40492 40847 41647 41687 41760 42156 42217 42370 42436 42439 42446 42486 42495 42529 42757 42841 42895 48097https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/127/185?format=asciiRadiodefaultJ/A+AS/127/185/table1Source parametersOH[x] x: Presence of OHmeta.notecharH2O[x] x: Presence of H2Ometa.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS namemeta.id;meta.maincharNamesOther namemeta.idcharRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainVlsrLSR center velocity of the spectrakm/sphys.veloc;pos.lsrintSiO[xX?] x: Presence of SiO, X: new detectionmeta.notecharTypeEvolutionary status of the object (1)meta.code.status;time.agecharr_TypeReferences detailed in table refs.datmeta.notechar_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+AS/127/185/table2SiO maser observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS namemeta.id;meta.maincharHJD1? Epoch of observation of SiO v=1, J=1-0dtime.epochintnullablerms1? rms of SiO v=1, J=1-0Jystat.stdev;phot.flux.densityfloatnullablepeak1? Peak flux for SiO v=1, J=1-0 (1)Jyphot.flux.density;em.radiofloatnullableInt1? Int of SiO v=1, J=1-01e-20W.m**-2phot.flux.density;em.radiofloatnullableHJD2? Epoch of observation of SiO v=2, J=1-0dtime.epochintnullableu_rms2[*] *: Calibration is uncertain due to unstable weathermeta.code.errorcharrms2? rms of SiO v=2, J=1-0Jystat.stdev;phot.flux.densityfloatnullablepeak2? Peak flux for SiO v=2, J=1-0 (1)Jyphot.flux.density;em.radiofloatnullableInt2? Int of SiO v=2, J=1-01e-20W.m**-2phot.flux.density;em.radiofloatnullablen_HJD3[*] *: Observation of SiO (2-1) made with the Onsala 20 m telescopemeta.notecharHJD3? Epoch of observation of SiO v=1, J=2-1dtime.epochintnullablerms3? rms of SiO v=1, J=2-1Jystat.stdev;phot.flux.densityfloatnullablepeak3? Peak flux for SiO v=1, J=2-1 (1)Jyphot.flux.density;em.radiofloatnullableInt3? Int of SiO v=1, J=2-11e-20W.m**-2phot.fluxfloatnullableJ/A+AS/127/185/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefNoReference numbermeta.ref;pos.frameintTextText of reference, including the Bibcodemeta.refchar