SIMBAD references

2019ApJ...878...29L - Astrophys. J., 878, 29-29 (2019/June-2)

A SiO J = 5 - 4 survey toward massive star formation regions.

LI S., WANG J., FANG M., ZHANG Q., LI F., ZHANG Z.-Y., LI J., ZHU Q. and ZENG S.

Abstract (from CDS):

We performed a survey in the SiO J = 5 - 4 line toward a sample of 199 Galactic massive star-forming regions at different evolutionary stages with the Submillimeter Telescope (SMT) 10 m and Caltech Submillimeter Observatory (CSO) 10.4 m telescopes. The sample consists of 44 infrared dark clouds (IRDCs), 86 protostellar candidates, and 69 young H II regions. We detected SiO J = 5 - 4 line emission in 102 sources, with a detection rate of 57%, 37%, and 65% for IRDCs, protostellar candidates, and young H II regions, respectively. We find both broad line emissions with full widths at zero power >20 km s–1 and narrow line emissions of SiO in objects at various evolutionary stages, likely associated with high-velocity shocks and low-velocity shocks, respectively. The SiO luminosities do not show apparent differences among various evolutionary stages in our sample. We find no correlation between the SiO abundance and the luminosity-to-mass ratio, indicating that the SiO abundance does not vary significantly in regions at different evolutionary stages of star formation.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): ISM: clouds - ISM: jets and outflows - ISM: molecules - stars: formation - stars: massive - submillimeter: ISM

Status in Simbad:  waiting for electronic table

Simbad objects: 8

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2019.12.09-11:29:59

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