M.Sc. project

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Jes Jørgensenhttp://youngstars.nbi.dk/http://www.nbi.dk/~jeskjshapeimage_2_link_0

During the first stages of star formation, an embedded protostar accumulates most of its mass from the surrounding envelope material. Jets and outflows play a key role during this process by removing the excess angular momentum from the system and by dispersing envelope material. The latter process affects directly the physical and chemical conditions of the main mass reservoir that feeds the emerging protostar, and the material from which planets are eventually formed. The exact mechanisms and their Its effect is still poorly understood, however. To understand the impact of outflows it is important to have reliable measures of the physical and chemical conditions in the swept-up gas, as well as information on the different scales involved.

The purpose of the M.Sc project will be to study the importance of outflows on the dense material surrounding low-mass protostars. This will mainly be done by combining interferometric data with single dish observations, i.e. short spacings correction. The interferometric data comes from the Sub-Millimetre Array (SMA) and the single dish data from Atacama Pathfinder Experiment (APEX).

The impact of outflows on the physical evolution of protostars

Keywords: APEX and SMA submillimeter observations