J/A+A/640/A13ivo://CDS.VizieR/J/A+A/640/A13doi:10.26093/cds/vizier.36400013CDSSantamaria-Miranda A.de Gregorio-Monsalvo I.Huelamo N.Plunkett A.L.,Ribas A.Comeron F.Schreiber M.R.Lopez C.Muzic K.Testi L.2020-10-12T10:36:40Z2020-07-31T06:02:01ZCDS support team

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

cds-question@unistra.frvariable-starsco-line-emissionmillimeter-astronomysubmillimeter-astronomyVery low-mass stars are known to have jets and outflows, which is indicative of a scaled-down version of low-mass star formation. However, only very few outflows in very low-mass sources are well characterized. We characterize the bipolar molecular outflow of the very low-mass star Par-Lup3-4, a 0.12M_{sun}_ object known to power an optical jet. We observed Par-Lup3-4 with ALMA in Bands 6 and 7, detecting both the continuum and CO molecular gas. In particular, we studied three main emission lines: CO(2-1), CO(3-2), and ^13^CO(3-2). Our observations reveal for the first time the base of a bipolar molecular outflow in a very low-mass star, as well as a stream of material moving perpendicular to the primary outflow of this source. The primary outflow morphology is consistent with the previously determined jet orientation and disk inclination. The outflow mass is 9.5x10^-7^M_{sun}_, with an outflow rate of 4.3x10^-9^M_{sun}_/yr. A new fitting to the spectral energy distribution suggests that Par-Lup3-4 may be a binary system. We have characterized Par-Lup3-4 in detail, and its properties are consistent with those reported in other very low-mass sources. This source provides further evidence that very low-mass sources form as a scaled-down version of low-mass stars.2020A&A...640A..13Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/640/A13CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/640/A13https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/640/A13http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/640/A13https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/640/A13https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/640/A13http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/640/A13GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/640/A13/list (List of fits images and datacubes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/640/A13/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/640/A13/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/640/A13/list?GETtext/xml+votable180.050000true242.21433-39.091810.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/640/A136/42611https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/640/A13?format=asciiMillimeterRadiodefaultJ/A+A/640/A13/listList of fits images and datacubesdVRAD? VRAD resolutionm/sspect.resolutionintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintNz? Number of slices, fro the datacubesmeta.numberintnullableObs.dateObservation datestime.epoch;obsnullableFreq? Observed frequency or lower value of frequency interval for the datacubesGHzem.freqfloatnullableBFreq? Upper value of frequency interval for the datacubesGHzem.freq;stat.maxfloatnullabledFreq? Frequency resolution for the datacubesHzspect.resolutionintnullablebVRAD? Lower value of VRAD intervalm/sphys.velocdoublenullableBVRAD? Upper value of VRAD intervalm/sphys.velocdoublenullablesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fits