[20.21] Accretion onto High Mass Stars: Defining the Structure Near the Star

AAS 201st Meeting, January, 2003
Session 20. Star Formation I
Poster, Monday, January 6, 2003, 9:20am-6:30pm, Exhibit Hall AB

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[20.21] Accretion onto High Mass Stars: Defining the Structure Near the Star

P. K. Sollins, P. T. P. Ho, Q. Zhang, E. Keto (Harvard-Smithsonian CfA)

W51e and are G10.6-0.4 are both sites of high mass star formation. Both contain a hot molecular core, thought to be the earliest observed stage of massive star formation, with an embedded ultra-compact HII (UCHII) region. We have investigated the velocity and density structures in the hot molecular cores at small physical scales by observing NH₃ in absorbtion against the bright continuum of the UCHII regions. Our observations are from the VLA and have a resolution of 0.15" (1000 AU). We have also investigated two previously detected NH₃(3,3) masers in W51.

The author(s) of this abstract have provided an email address for comments about the abstract: psollins@cfa.harvard.edu

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