Plume, RenéKlaassen, Pamela D.2005-08-162005-08-162004Klaassen, P. D. (2004). Characterization of the outflow of W28A2 (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/122280612975932http://hdl.handle.net/1880/41673Bibliography: p. 103-109Some pages are in colour.The formation of high mass stars is less well understood than that of lower mass stars due to the shorter time scales and larger distances involved. One of the earli­est stages of high mass star formation consists of a period of outflow which can be studied through its impact on its environment. We present observations of W28A2, a shell like Ultracompact HII region associated with one of the youngest and most energetic outflows in the Galaxy (05 star). Using the James Clerk Maxwell Tele­scope, we have observed the outflow in a number of transitions and have derived the age, mass, extent, and velocity of the outflow. In order to better constrain the driving mechanism of the outflow, we have conducted magneto-hydrodynamic simu­lations (using Zeus-MP and Jetget) of a high-velocity jet impacting on a surrounding molecular envelope.x, 146 leaves : ill. ; 30 cm.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.master thesishttp://dx.doi.org/10.11575/PRISM/12228AC1 .T484 2004 K525