J/A+A/684/A86ivo://CDS.VizieR/J/A+A/684/A86doi:10.26093/cds/vizier.36840086CDSBayandina O.S.Burns R.A.Caratti o Caratti A.Kurtz S.E.Moscadelli L.,Shakhvorostova N.N.Sobolev A.M.Tanabe Y.Val'tts I.E.Yonekura Y.2024-11-07T20:03:00Z2024-04-05T09:14:00ZCDS support team

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

cds-question@unistra.frstar-forming-regionsastrophysical-masersradio-astronomyradio-sourcesMaser flares are of particular significance for the study of massive star formation as they not only signal but also provide unique insights into transient phenomena such as accretion bursts. With this project, we aim to investigate the context of the ongoing 6.7 GHz methanol maser flare in the little-known massive star forming region G11.497-1.485. Two epoch of the Karl G. Jansky Very Large Array (VLA) observations have been performed for 6.7GHz and 12GHz class II methanol, and 22GHz water masers, as well as continuum at C, Ku, and K-bands. The VLA overview revealed the presence of five distinct radio-continuum sources (CM1-4 and N) in G11.497-1.485. The central source CM1 is found to show signs of accretion disk fragmentation, highlighted by the cm-continuum traced fragments, as well as to drive a high-energy jet, the ends of which are marked by non-thermal knots CM2 and CM3. CM1 showed a gradual flaring of methanol masers and fading of a 22GHz water maser, which might be signalling an accretion burst. The two remaining sources of the region, CM4 and N, revealed one of the most compact jet and disk-jet systems found to date. The obtained data revealed, for the first time, the structure of the G11.497-1.485 region. The change in fluxes of the maser and continuum emission confirmed a transient event and revealed its impact on multiple sources in the region.2024A&A...684A..86Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/684/A86CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/163/83 : G358.93-0.03 6.67-23.12GHz CH3OH maser parametershttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/684/A86https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/684/A86http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/684/A86https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/684/A86https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/684/A86http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/684/A86GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/684/A86/tablea1 (Parameters of the 6.7GHz CH3OH maser in G11.497-1.485 CM1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/684/A86/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/684/A86/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/684/A86/tablea1?GETtext/xml+votable180.050000true274.092194722-19.6908458330.005555555555555556Cone search capability for table J/A+A/684/A86/tablea2 (Parameters of the 12GHz CH3OH maser in G11.497-1.485 CM1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/684/A86/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/684/A86/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/684/A86/tablea2?GETtext/xml+votable180.050000true274.092193333-19.6908763890.005555555555555556Cone search capability for table J/A+A/684/A86/tablea3 (Parameters of the 22GHz H2O maser in G11.497-1.485 CM1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/684/A86/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/684/A86/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/684/A86/tablea3?GETtext/xml+votable180.050000true274.092180556-19.6908402780.005555555555555556Cone search capability for table J/A+A/684/A86/tablea4 (Parameters of the 22GHz H2O maser in G11.497-1.485 CM4)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/684/A86/tablea4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/684/A86/tablea4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/684/A86/tablea4?GETtext/xml+votable180.050000true274.093025-19.6889246670.005555555555555556Cone search capability for table J/A+A/684/A86/tablea5 (Parameters of the 6.7GHz CH3OH maser in G11.497-1.485 N)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/684/A86/tablea5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/684/A86/tablea5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/684/A86/tablea5?GETtext/xml+votable180.050000true274.092533333-19.6877583330.005555555555555556Cone search capability for table J/A+A/684/A86/tablea6 (Parameters of the 22GHz H2O maser in G11.497-1.485 N)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/684/A86/tablea6?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/684/A86/tablea6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/684/A86/tablea6?GETtext/xml+votable180.050000true274.092525-19.6877563890.0055555555555555566/29092https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/684/A86?format=asciiRadiodefaultJ/A+A/684/A86/tablea1Parameters of the 6.7GHz CH3OH maser in G11.497-1.485 CM1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEpochObservation epochtime.epoch;obscharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000Uncertainty in RAssstat.error;pos.eq.radoubleDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maine_DEJ2000Uncertainty in DEsarcsecstat.error;pos.eq.decfloatIntIntegrated Flux in units of JyJyphot.flux.density;em.radiofloate_IntUncertainty in IntJystat.errorfloatFluxPeak Flux in units of Jy/beamJyphot.flux.density;em.radiofloate_FluxUncertainty in PeakJystat.error;phot.fluxfloatVelVelocitykm/sspect.dopplerVelocfloatJ/A+A/684/A86/tablea2Parameters of the 12GHz CH3OH maser in G11.497-1.485 CM1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEpochObservation epochtime.epoch;obscharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000Uncertainty in RAssstat.error;pos.eq.radoubleDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maine_DEJ2000Uncertainty in DEsarcsecstat.error;pos.eq.decfloatIntIntegrated Flux in units of JyJyphot.flux.density;em.radiofloate_IntUncertainty in IntJystat.errorfloatFluxPeak Flux in units of Jy/beamJyphot.flux.density;em.radiofloate_FluxUncertainty in PeakJystat.error;phot.fluxfloatVelVelocitykm/sspect.dopplerVelocfloatJ/A+A/684/A86/tablea3Parameters of the 22GHz H2O maser in G11.497-1.485 CM1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEpochObservation epochtime.epoch;obscharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000Uncertainty in RAssstat.error;pos.eq.radoubleDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maine_DEJ2000Uncertainty in DEsarcsecstat.error;pos.eq.decfloatIntIntegrated Flux in units of JyJyphot.flux.density;em.radiofloate_IntUncertainty in IntJystat.errorfloatFluxPeak Flux in units of Jy/beamJyphot.flux.density;em.radiofloate_FluxUncertainty in PeakJystat.error;phot.fluxfloatVelVelocitykm/sspect.dopplerVelocfloatJ/A+A/684/A86/tablea4Parameters of the 22GHz H2O maser in G11.497-1.485 CM4EpochObservation epochtime.epoch;obscharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000Uncertainty in RAssstat.error;pos.eq.radoubleDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maine_DEJ2000Uncertainty in DEsarcsecstat.error;pos.eq.decfloatIntIntegrated Flux in units of JyJyphot.flux.density;em.radiofloate_IntUncertainty in IntJystat.errorfloatFluxPeak Flux in units of Jy/beamJyphot.flux.density;em.radiofloate_FluxUncertainty in PeakJystat.error;phot.fluxfloatVelVelocitykm/sspect.dopplerVelocfloatJ/A+A/684/A86/tablea5Parameters of the 6.7GHz CH3OH maser in G11.497-1.485 Ne_IntUncertainty in IntJystat.errorfloatFluxPeak Flux in units of Jy/beamJyphot.flux.density;em.radiofloate_FluxUncertainty in PeakJystat.error;phot.fluxfloatVelVelocitykm/sspect.dopplerVelocfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEpochObservation epochtime.epoch;obscharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000Uncertainty in RAssstat.error;pos.eq.radoubleDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maine_DEJ2000Uncertainty in DEsarcsecstat.error;pos.eq.decfloatIntIntegrated Flux in units of JyJyphot.flux.density;em.radiofloatJ/A+A/684/A86/tablea6Parameters of the 22GHz H2O maser in G11.497-1.485 NrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEpochObservation epochtime.epoch;obscharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.maine_RAJ2000Uncertainty in RAssstat.error;pos.eq.radoubleDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maine_IntUncertainty in IntJystat.errorfloate_DEJ2000Uncertainty in DEsarcsecstat.error;pos.eq.decfloatIntIntegrated Flux in units of JyJyphot.flux.density;em.radiofloatFluxPeak Flux in units of Jy/beamJyphot.flux.density;em.radiofloate_FluxUncertainty in PeakJystat.error;phot.fluxfloatVelVelocitykm/sspect.dopplerVelocfloat