Searching for Molecular Jets from High-mass Protostars

Abstract We report Very Large Array observations in the Q band toward 10 ionized jet candidates to search for SiO emission, a well-known shocked gas tracer. We detected 7 mm continuum counterparts toward 90% of the jet candidates. In most cases, the jet candidate is located toward the center of the...

Full description

Saved in:
Bibliographic Details
Published inThe Astrophysical journal. Supplement series Vol. 264; no. 2; pp. 30 - 54
Main Authors Rodríguez, Tatiana M., Hofner, Peter, Edelman, Isaac, Araya, Esteban D., Rosero, Viviana
Format Journal Article
LanguageEnglish
Published Saskatoon The American Astronomical Society 01.02.2023
IOP Publishing
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:Abstract We report Very Large Array observations in the Q band toward 10 ionized jet candidates to search for SiO emission, a well-known shocked gas tracer. We detected 7 mm continuum counterparts toward 90% of the jet candidates. In most cases, the jet candidate is located toward the center of the 7 mm core, and the high masses (≈100 M ⊙ ) and densities (≈10 7 cm −3 ) of the cores suggest that the central objects are very young high-mass protostars. We detected SiO J = 1–0 emission associated with six target sources. In all cases, the morphology and spectrum of the emission is consistent with what is expected for molecular jets along an outflow axis, thus confirming the jet nature of 60% of our sample. Our data suggest a positive correlation between the SiO luminosity L SiO , and both the bolometric luminosity L Bol and the radio luminosity S ν d 2 of the driving sources.
Bibliography:AAS40904
Interstellar Matter and the Local Universe
ISSN:0067-0049
1538-4365
DOI:10.3847/1538-4365/aca4c6