Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21741603f&link_type=abstract
American Astronomical Society, AAS Meeting #217, #416.03; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
We have obtained multiple data sets from the SMA, PdBI, and IRAM 30m telescope of the Infrared Dark Cloud IRDC18223-3, the High-Mass Protostellar Object IRAS18151-1208, and the hot core source IRAS18507+0121 in order to search for clues regarding the role of rotation and disks in high mass star formation. These three objects allow us to compare the central-most regions surrounding the embedded continuum source at three different evolutionary stages of the formation process. Toward all three regions we see rotational or elongated structures perpendicular to the molecular outflows. Similarities and differences in the evolutionary sequence are discussed in the context of core and disk evolution. We have also carried out continuum and line radiative transfer modeling of the disk-like structures. Having a more complete picture of the evolutionary process that a massive star experiences will contribute significantly to the future of massive star formation research. Support for this project comes from the Deutsche Forschungsgemeinschaft and the International Max-Planck Research School for Astronomy and Cosmic Physics at the University of Heidelberg.
Beuther Henrick
Fallscheer Cassandra L.
Keto Eric
Sauter Jefferson
Sridharan Tirupati K.
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