SIMBAD references

2020A&A...640A..13S - Astronomy and Astrophysics, volume 640A, 13-13 (2020/8-1)

Bipolar molecular outflow of the very low-mass star Par-Lup3-4. Evidence for scaled-down low-mass star formation.

SANTAMARIA-MIRANDA A., DE GREGORIO-MONSALVO I., HUELAMO N., PLUNKETT A.L., RIBAS A., COMERON F., SCHREIBER M.R., LOPEZ C., MUZIC K. and TESTI L.

Abstract (from CDS):


Context. 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.
Aims. We characterize the bipolar molecular outflow of the very low-mass star Par-Lup3-4, a 0.12 M object known to power an optical jet.
Methods. 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 13CO(3-2).
Results. 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 9.5x10–7M, with an outflow rate of 4.3x10–9M/yr. A new fitting to the spectral energy distribution suggests that Par-Lup3-4 may be a binary system.
Conclusions. 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.

Abstract Copyright: © ESO 2020

Journal keyword(s): stars: formation - ISM: individual objects: Par-Lup3-4 - ISM: jets and outflows - submillimeter: stars - techniques: interferometric

VizieR on-line data: <Available at CDS (J/A+A/640/A13): list.dat fits/*>

Simbad objects: 16

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2020A&A...640A..13S and select 'bookmark this link' or equivalent in the popup menu


2023.01.28-21:01:09

© Université de Strasbourg/CNRS

    • Contact