J/A+A/664/A44ivo://CDS.VizieR/J/A+A/664/A44doi:10.26093/cds/vizier.36640044CDSBayandina O.S.Brogan C.L.Burns R.A.Caratti o Garatti A.,Chibueze J.O.van den Heever S.P.Kurtz S.E.MacLeod G.C.,Moscadelli L.Sobolev A.M.Sugiyama K.Val'tts I.E.Yonekura Y.2022-12-16T22:23:54Z2022-08-04T08:54:00ZCDS support team

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

cds-question@unistra.frstar-forming-regionsastrophysical-masersradio-astronomyradio-sourcesThe massive young stellar object (MYSO) G358.93-0.03-MM1 showed an extraordinary NIR/(sub)mm-dark and FIR-loud accretion burst closely associated with flares of several class II methanol maser transitions and, later, a 22GHz water maser flare. Water maser flares provide an invaluable insight into ejection events associated with accretion bursts. Although, the short timescale of the 22GHz water maser flare made it impossible to carry on a VLBI observation, we could track it with the Karl G. Jansky Very Large Array (VLA). The evolution of the spatial structure of the 22GHz water masers and their association with the continuum sources in the region is studied with the VLA at two epochs, pre- and post-H2O maser flare. A drastic change in the distribution of the water masers is revealed: in contrast to four maser groups detected at epoch I, only two newly formed clusters are detected at epoch II. The 22GHz water masers associated with the bursting source MM1 changed in morphology and emission velocity extent. Clear evidence of the influence of the accretion burst on the ejection from G358.93-0.03-MM1 is presented. Potentially, the accretion event has also affected a region with a radius of ~2'' (~13500AU at 6.75kpc), suppressing water masers associated with other point sources in the region.2022A&A...664A..44Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/664/A44CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/163/83 : G358.93-0.03 6.67-23.12GHz CH_3_OH maser parametershttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/664/A44https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/664/A44http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/664/A44https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/664/A44https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/664/A44http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/664/A44GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/664/A44/table4 (22 GHz H_2_O maser parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A44/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A44/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A44/table4?GETtext/xml+votable180.050000true265.792098889-29.8626691670.0055555555555555566/288271.4577353054677623e-23 1.4577353054677623e-23https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/664/A44?format=asciiRadiodefaultJ/A+A/664/A44/table422 GHz H_2_O maser parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintComponentH_2_O maser componentmeta.id;meta.maincharRAJ2000Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000Uncertainty in RAsstat.error;pos.eq.radoubleDEJ2000Declination (J2000)pos.eq.dec;meta.maine_DEJ2000Uncertainty in DEarcsecstat.error;pos.eq.decfloatFIntIntegrated flux at 22GHzmJyphot.flux.density;em.radio.12-30GHzinte_FIntUncertainty in IntmJystat.errorintFpeakPeak flux at 22GHzmJy/beamphot.flux.density;em.radio.12-30GHzinte_FpeakUncertainty in FpeakmJy/beamstat.errorfloatVelVelocitykm/sphys.velocfloat