Objective
The way in which stars are born is critical to many aspects of our Universe, from the structure of galaxies to the building of planets. But we still know very little about star formation. The fact that only a tiny fraction of the clouds we now see will collapse into stars has prolonged the era of star formation in our Galaxy, giving us an appearance of youth despite our age. Some possible causes for the on-going star formation are explored in this proposed project.
Our objective is based on the fact that all very young stars or protostars strike back. They interact dynamically with their maternal cloud. This feedback of momentum and energy takes place through twinjets and collimated outflows. We wish to answer three questions. First, what do the jets carry away with them from the protostars? Second, how do they re-process and re-shape the material directly in their paths? Third, what local and global influence can they have on the efficiency of star formation?
To approach these questions, we require some new observing equipment, new computers for data handling and support for contemplation and collaboration.We plan observational campaigns at the two telescopes in Russia and Byurakan. These will provide optical data of the structure and motions of the atomic gas.
We will also propose infrared observations of the same fields from ground and space-based telescopes accessible to the INTAS partners. Combining data sets, we will derive or constrain the spatial and spectral distributions of physical quantities Supporting numerical simulations and theoretical analysis will be carried out by the Armagh team to test plausible physical and dynamical scenarios.
Our targets are as follows. First, several well-known HH Objects will be studied in high detail. Our spectroscopic data combined with HST and VLT sub-arcsecond imaging will permit unprecedented quantitative modelling, rarely undertaken since the works of Solf and Boehm 15 years ago. Second, the HH Flows located near Cometary Nebula will be studied in order to determine the `spin' properties: do the outflows extract angular momentum from either the circumstellar disk or protostar? Evidence can be contained from radial velocities and twisted spatial structure. Third, we will examine specific molecular clouds, exploring the extinction and outflow locations to study how cloud evolution is influenced by outflows, including the jet-triggering of star formation in nearby clumps, alignment properties and the specific sources of turbulent energy.
Fields of science (EuroSciVoc)
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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Coordinator
ARMAGH
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.