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Very long Baseline Interferometric astrometry of SiO masers around AGB stars to track the mass loss processes

Objective

"The Observatorio Astronómico Nacional (OAN) is building a new 40 meter state of the art VLBI antenna, at Yebes, Spain. We will use my experience to integrate this into the European astronomical networks. We will then use its innovative optical system to develop the new calibration method of "astrometric frequency phase transfer for spectral line VLBI'' for the general astronomical community. We will use this method to align SiO maser multi-transition observations to a common reference frame, and confirm the offsets between the emission sites at different frequencies. In parallel we will use the Yebes antenna as a single dish to confirm that the maximum flux for the multi-transitions occur at the same time. Once we have the confirmation of emission stimulation occurring at the same time in different places we have shown that the maser stimulation is radiative, solving the long standing conflict in this field. Once the correct model is known the astronomical community can trace the mass loss processes of evolved stars. This project therefore: uses my experience to assist the European Research Area, begins a long term collaborative project by developing new techniques, and provides me with the training and the experience to return to Australia."

Call for proposal

FP6-2004-MOBILITY-7
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Funding Scheme

IIF - Marie Curie actions-Incoming International Fellowships

Coordinator

FUNDACION GENERAL DE LA UNIVERSIDAD DE ALCALA - INSTITUTO GEOGRAFICO NACIONAL
Address
Calle Imagen, 1-3
Alcala De Henares
Spain