Par-Lup3-4 CO ALMA images

DOI

Very 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.

Cone search capability for table J/A+A/640/A13/list (List of fits images and datacubes)

Associated data

Identifier
DOI http://doi.org/10.26093/cds/vizier.36400013
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/640/A13
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/640/A13
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/640/A13
Related Identifier https://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/640/A13
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/640/A13
Provenance
Creator Santamaria-Miranda A.; de Gregorio-Monsalvo I.; Huelamo N.; Plunkett A.L.,Ribas A.; Comeron F.; Schreiber M.R.; Lopez C.; Muzic K.; Testi L.
Publisher CDS
Publication Year 2020
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Interstellar medium; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy