The following document lists the file abstract/SRUSSEL_PROP_3.abs
from catalogue VI/111.
A plain copy of the file
(without headers/trailers) may be downloaded.
This proposal is to observe the energy sources of molecular outflows, to try and understand the physical properties of the stars at this stage in their evolution. Most, and perhaps all stars, undergo a period of intense outpouring of material early on in their lives. Some are observed to eject optical jets, while others eject molecular outflows. Indeed, it is believed that jets and molecular outflows are different aspects of the same phenomenon. The energy sources for optical jets are to be investigated in the guaranteed proposal BREIPURT_HHSOURCE. It is important, therefore, to perform a similar investigation of the energy sources for molecular outflows. What makes them different to the sources of optical jets? What are the time scales for this phase in a star's evolution? It is intended that ISOPHOT will be used to determine an accurate spectral energy distribution (SED) of each of the sources, using the same filters as for BREIPURT_HHSOURCE, but with the addition of a silicate feature filter. These data, combined with ground based near-IR and millimetre data and IRAS data, will provide a detailed picture of the powerhouse for molecular outflows.