The interaction of young stars with their environments.
Young stars eject spectacular displays of jets and bullets of gas. These outflows are believed to be crucial to the
successful birth of a star. We propose to determine the nature and implications of these outflows by analysing their
physical parameters and spatial structure. For this, we need to employ new spectroscopic instruments in conjunction
with our large telescopes. The major aims of the project are as follows :
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Observation. To apply the powerful capabilities of modern 3D spectroscopy to the study of outflowing phenomena
from pre-main sequence stars. To obtain good quality data for selected nebulous objects in star forming regions through
the detailed spectro-imaging and spectrophotometric study at the 2.6m and 6m telescopes of
Byurakan Observatory and Special
Astrophysical Observatory (SAO).
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Analysis. To construct new models, especially for such phenomena as helical jets and helical structures in nebulae.
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Interpretation. To explore
- the hidden inflow-outflow connection at the heart of a young stellar system,
- the evolution of the system's spin by searching for the signs of rotation and precession,
- the dynamical feedback into the environment and
- the physics of shock waves and magnetic fields in the interstellar medium.
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Advancement. To improve the observational capabilities of the 2.6m and 6m telescopes by purchasing and installation
of optical elements (high-resolution grism, filters, gratings) specific to the above goals. Especially should be noted
that this will support the development of new technique of multi-pupil spectroscopy of high spectral resolution.
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Collaboration. To strengthen further the basis for the tight collaboration and cooperation between the teams involved
in the project. Especially the intended close cooperation between observers and theoreticians should be noted.
Coordinator: Michael D.Smith
Armagh Observatory,
Fax : +44 2837 527174
Tel : +44 2837 522928
E-mail : mds@star.arm.ac.uk
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