SIMBAD references

2012ApJ...754...87W - Astrophys. J., 754, 87 (2012/August-1)

Different evolutionary stages in the massive star-forming region W3 main complex.

WANG Y., BEUTHER H., ZHANG Q., BIK A., RODON J.A., JIANG Z. and FALLSCHEER C.

Abstract (from CDS):

We observed three high-mass star-forming regions in the W3 high-mass star formation complex with the Submillimeter Array and IRAM 30 m telescope. These regions, i.e., W3 SMS1 (W3 IRS5), SMS2 (W3 IRS4) and SMS3, are in different evolutionary stages and are located within the same large-scale environment, which allows us to study rotation and outflows as well as chemical properties in an evolutionary sense. While we find multiple millimeter continuum sources toward all regions, these three subregions exhibit different dynamical and chemical properties, which indicate that they are in different evolutionary stages. Even within each subregion, massive cores of different ages are found, e.g., in SMS2, sub-sources from the most evolved ultracompact H II region to potential starless cores exist within 30,000 AU of each other. Outflows and rotational structures are found in SMS1 and SMS2. Evidence for interactions between the molecular cloud and the H II regions is found in the 13CO channel maps, which may indicate triggered star formation.

Abstract Copyright:

Journal keyword(s): ISM: individual: W3 - ISM: jets and outflows - ISM: molecules - stars: formation - stars: massive

Nomenclature: Table 2: [WBZ2012] SMSN N=3, Table 1: [WBZ2012] SMSN-MMN N= 14.

Simbad objects: 31

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2012ApJ...754...87W and select 'bookmark this link' or equivalent in the popup menu


2019.10.21-00:53:52

© Université de Strasbourg/CNRS

    • Contact